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PRESERVATION MAINTENANCE FOR THE CGC MACKINAW
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USCGC MACKINAW (WLBB 30)

SPECIFICATION FOR PRESERVATION MAINTENANCE

FY2017 – FY2021

Developed By: Thurston B. Sumner (Rev-0, 10 Feb 2016)

TABLE OF CONTENTS

iiiRevisions Record ivConsolidated List of References viConsolidated List of Government-furnished Property viiConsolidated List of Critical Inspection Items viiiPrincipal Characteristics

1General Requirements

10WORK ITEM 1: Decks - Exterior, Preserve (“MIL-SPEC” System)

14WORK ITEM 2: Decks – Exterior (Buoy Deck), Preserve 100% (Level II)

17WORK ITEM 3: Hull Plating Freeboard (Buoy Port Areas), Preserve

20WORK ITEM 4: Hull Plating Freeboard, Preserve – “Partial”(Level I)

25WORK ITEM 5: Hull Plating Freeboard, Preserve “100%” (Level II)

28WORK ITEM 6: Main Mast, Preserve, 100% (Level II)

32WORK ITEM 7: Main Mast, Preserve, “Partial” (Level I)

36WORK ITEM 8: Superstructure, Preserve “100%” (Level II)

39WORK ITEM 9: Superstructure, Preserve “Partial” (Level I)

44WORK ITEM 10: Exhaust Stacks (Exterior), Preserve – “100%”(Level II)

47WORK ITEM 11: Exhaust Stacks (Exterior), Preserve – “Partial” (Level I)

51WORK ITEM 12: Miscellaneous Ship Structures, Preserve

55WORK ITEM 13: Bilges, Preserve

57WORK ITEM 14: Tenting, Provide

59WORK ITEM 15: Load Bank, Preserve “Partial” (Level II)

Revisions Record This page is used to record specification revisions, which may have occurred subsequent to a Revision 0 (Rev-0) package. Information listed is intended to provide contractors and field unit personnel a means to ensure all the current specification revision pages are present when reviewing or utilizing this specification package.

DATE
REV#
WORK ITEM#
CHANGES MADE

NOTE : All work item and paragraph numbers listed above for a given revision correspond to same numbers in the previous revision. This revised specification is self-contained with all of the above listed changes incorporated.

Consolidated List of References

The below-listed documents form a part of this specification to the extent specified herein. Approval/publication dates or revision dates/numbers are also identified, to ensure that same document versions are used at time of specification writing and during contract execution.

All Coast Guard drawings, technical publications, and standard specifications will be provided to contractors by the Coast Guard at an appropriate time, or upon request, free of charge. Other Government documents may be accessed – free of charge – as follows:

· MIL/DOD/CID Specifications: http://www.assistdocs.com/search/search_basic.cfm

· Commandant Instruction Manuals: http://www.uscg.mil/directives/default.asp

· Public Laws, Code of Federal Regulations, U.S Codes, and other Federal Government laws:: www.gpoaccess.gov The Government is aware of the following internet web links where contractors may procure commercial specifications:

· American Welding Society (AWS): http://www.awspubs.com/index.php

· ANSI, ASTM, IEEEE, NFPA, ASME, SAE Standards: http://www.techstreet.com/

· NFPA: http://www.nfpa.org

· SSPC Standards and pictorial guides: http://shopping.netsuite.com/sspcmarketplace

COAST GUARD DRAWINGS

APM: Add and format applicable CG drawing(s)

Coast Guard Drawing 240 WLBB 162-1, Rev B, Stack Assembly & Detail

Coast Guard Drawing 240 WLBB 170-1, Rev B, Mast A&D

Coast Guard Drawing 240 WLBB 405-1, Rev F, Mast and Antenna Arrangement

Coast Guard Drawing 240 WLBB 601-002, Rev B, Booklet of General Plans

Coast Guard Drawing 240 WLBB 601-002, Rev B, Booklet of General Plans

Coast Guard Drawing 240 WLBB 601-002, Rev D, Booklet of General Plans

Coast Guard Drawing 240 WLBB 601-002, Rev E, Booklet of General Plans

Coast Guard Fleet Drawing FL 2804-12, Rev -, U.S.C.G. Emblem

Coast Guard Fleet Drawing FL 2804-22, Rev-, Consolidated Visual ID for Cutters

COAST GUARD PUBLICATIONS

Coast Guard Commandant Instruction (COMDTINST) M10360.3, Jun 2006, Coatings and Colors Manual

Surface Forces Logistics Center Standard Specification 0000 (SFLC Std Spec 0000), 2014, General Requirements

Surface Forces Logistics Center Standard Specification 0740 (SFLC Std Spec 0740), 2014, Welding and Allied Processes

Surface Forces Logistics Center Standard Specification 3042 (SFLC Std Spec 3042), 2014, Shipboard Electrical Cable Removal, Relocation, Splice, Repair, and Installation

Surface Forces Logistics Center Standard Specification 6310 (SFLC Std Spec 6310), 2012, Requirements for Preservation of Ship Structures

Surface Forces Logistics Center Standard Specification 6310 (SFLC Std Spec 6310), 2014, Requirements for Preservation of Ship Structures

OTHER REFERENCES

Federal Standard (FED-STD) 595, 2008, Colors Used In Government Procurement

MIL-A-22262, Mar 1996; Abrasive Blasting Media Ship Hull Blast Cleaning

The Society for Protective Coatings (SSPC) Surface Preparation Specification No. 1 (SSPC-SP 1), 2015, Solvent Cleaning

The Society for Protective Coatings (SSPC) Surface Preparation Specification No.11 (SSPC-SP 11), 2013, Power Tool Cleaning to Bare Metal

The Society for Protective Coatings (SSPC)/NACE International (NACE) Joint Surface Preparation Standard SSPC-SP 10/NACE No.2, 2007, Near-White Blast Cleaning

The Society for Protective Coatings (SSPC)/NACE International (NACE) Joint Surface Preparation Standard SSPC-SP WJ-2/NACE WJ-2, 2012, Waterjet Cleaning of Metals – Very Thorough Cleaning

The Society for Protective Coatings (SSPC)/NACE-International (NACE) Joint Surface Preparation Standard SSPC-SP 12/NACE No. SSPC-SP 12/NACE No.5, Surface Preparation and Cleaning of Steel & Other Hard Materials by High and Ultrahigh Pressure Water Jetting Prior to Recoating

Consolidated List of Government-furnished Property

The following is a list of property, which the Government will furnish. This list supersedes any other material obligations indicated or implied by referenced drawings.

This section is not applicable to this package.

Consolidated List of Critical Inspection Items The following is a list of work items, which contain Critical Inspection reports, which the Contractor must complete within the first 25% of the availability contract period (see SFLC Std Spec 0000, paragraph 3.2.6.5 (Inspection report particulars)):

Work Item
Title

This section is not applicable to this package.

Principal Characteristics

240' WLBB (CGC MACKINAW)

Physical

Length overall
240’ 0”
Depth (main deck at side to baseline)
24' 0"
Maximum beam
58’ 0”
Height of highest Projection (above DWL)
95' 6"
Full load draft
15’ 6” LCF Draft
Full load displacement (icebreaking)
3427.82 Long Tons Freshwater
Shore tie voltage requirements
1,200 Amp total

3EA 400A 450VAC 3PH

Ungrounded forward/aft stations

Hull

Frame spacing
FR 19-25 = 19"

FR 33-39 = 21"

ALL Else = 20"

Machinery

Number of propellers
2
Number of blades per propeller
4
Diameter of propeller
10.25'
Pitch
96.98"
RPM
226 rated 270 max
Shafting/propulsion system
Azipod

Tank capacities

Diesel oil
115,538 gal.
Fresh water capacity
27,948 gal.
Hydraulic oil capacity
696 gal.
Lube oil storage
1,159 gal.
Grey water tank
27, 080 gal.
Sewage holding tank
5,313 gal.

00000_0315_FLT

REC_00000_FLT_ MATOC Dockside (1014) General Requirements

1. SCOPE

1.1 Intent. This standard specification invokes general requirements for conducting Vessel repairs performed for assets under MATOC by Commercial Contractor at CG Facility for Coast Guard vessels.

1.2 Term interchangeability. The terms 'Contractor', 'CG Yard', 'NAVSTA EVERETT', 'shipyard', 'Base', and 'Coast Guard Industrial' are used interchangeably in this specification. Where the primary service provider is Coast Guard personnel, references to contractor and other noted descriptors within this specification or within drawings, publications, SFLC Standard Specifications or other commercial and military references are deemed the same as prime service provider.

2. REFERENCES

Coast Guard Drawings

None

Coast Guard Publications

Coast Guard Commandant Instruction (COMDTINST) M10360.3 (series), Coatings and Color Manual

Surface Forces Logistics Center Standard Specification 0000 (SFLC Std Spec 0000), 2014, General Requirements

Surface Forces Logistics Center Standard Specification 0740 (SFLC Std Spec 0740), 2014, Welding and Allied Processes

Surface Forces Logistics Center Standard Specification 6310 (SFLC Std Spec 6310), 2014, Requirements for Preservation of Ship Structures

Other References

None

3. REQUIREMENTS

3.1 General. The Contractor shall conform to all requirements specified in SFLC Std Spec 0000 and in this item, as applicable, during the performance of this availability.

NOTE

The requirements of paragraph 3.1 (General) applies to all work under the scope of this contract, whether explicitly stated in work items or not, and to all other work subsequently authorized by changes, modifications, or extensions to the contract.

3.2 Contractor-provided fire watch personnel. The Contractor shall provide fire watch personnel and equipment.

3.3 Preservation requirements. The Contractor shall accomplish all preservation tasks, including touch-ups, in accordance with SFLC Std Spec 6310.

3.3.1 Brand name approval. Ensure that all contractor-furnished coatings are in accordance with SFLC Std Spec 6310, Appendix C (Authorized Coatings for Use on Cutters and Boats).

3.3.2 Coating colors and system color schemes. Ensure that all colors and color coat/paint schemes are in accordance with COMDTINST M10360.3, Chapter 6 (Cutter and Boat Colors Exterior and Interior).

NOTE

Unless a waiver has been granted (in writing) by the KO, deviations from authorized coatings (listed in Appendix C of SFLC Std Spec 6310) and colors and color schemes (provided in Chapter 6 of COMDTINST M10360.3) are strictly prohibited.

3.4 Welding and brazing requirements. The Contractor shall perform all welding and allied processes, and NDI in accordance with SFLC Std Spec 0740.

3.5 Environmental protection requirements. The Contractor shall adhere to the following environmental protection requirements in accordance with the SFLC Stand Spec 0000:

3.5.1 USCG facilities. The Contractor shall provide and maintain environmental protection as defined in SFLC Std Spec 0000 Appendix B, Requirements for Environmental Protection at USCG Facilities, during the performance of this availability. Contractor shall plan for and provide environmental protective measures to control pollution that develops during normal practice, as well as plan for and provide environmental protective measures required to correct conditions that develop during the project. Contractor shall comply with applicable Federal, state, and local laws, codes, ordinances, and regulations in their entirety. Any reference to a specific portion of a Federal, state, or local law, code, ordinance, or regulation in this or any other item shall not be construed to mean that relief is provided from any other sections of the law, code, ordinance, or regulation.

3.5.1.1 USCG Generator status. The activity Generator Status for the Coast Guard Facility is MI4690312778.

3.5.1.2 Plans and permits. The CG Facility has unit specific permits including the following:

· Spill Prevention Control and Countermeasures (SPCC) Plan: Unit has a SPCC Plan which requires certain unit-specific procedures be followed for the storage, inspection, and transfer of petroleum products in containers 55 gallons or greater.

· National Pollutant Discharge Elimination System (NPDES) Storm Water (SW) Permit: Unit has an NPDES SW permit which requires unit-specific procedures be followed for the storage and inspection of equipment and materials which may contribute contaminants to storm water discharges.

· Air Emission Permit: Unit has a Air Emission Permit which requires unit-specific procedures be followed for the emissions of VOCs and hazardous air pollutants.

3.5.2 Test and procedures. The Contractor shall be required to promptly conduct tests and procedures for the purpose of assessing whether operations are in compliance with applicable Environmental Laws. Analytical work shall be done by qualified laboratories; and where required by law, the laboratories shall be certified.

3.5.3 Regulatory notifications. The Contractor shall be responsible for all regulatory notification requirements in accordance with Federal, State and local regulations. In cases where the Coast Guard must also provide public notification, such as storm water permitting, the Contractor must coordinate with the Contracting Officer or COR, and if work is being performed at a USCG Facility, the local Facility Engineer or Engineering Officer. The Contractor shall submit copies of all regulatory notifications to the Contracting Officer and the local Facility Engineer or Engineering Officer prior to commencement of work activities. Regulatory notifications shall be provided for including but not limited to demolition, renovation, National Pollutant Discharge Elimination System (NPDES) defined site work, and remediation of controlled substances such as asbestos, hazardous waste, and lead paint.

3.5.4 Environmental manager. The Contractor shall appoint in writing an Environmental Manager for the project, and shall be responsible for coordinating Contractor compliance with Federal, State, local, and station environmental requirements. The Environmental Manager shall ensure compliance with Hazardous Waste Program requirements, including hazardous waste handling, storage, manifesting, and disposal; implement the Contractors’ Environmental Management Plan; ensure that all environmental permits are obtained, maintained, and closed out; ensure compliance with Storm Water Program Management requirements; ensure compliance with Hazardous Materials including storage, handling, and reporting requirements; as well as coordinate any remediation of regulated substances such as lead, asbestos, and polychlorinated biphenyl (PCB). This may be a collateral position; however the individual must be trained to adequately accomplish the following duties; ensure waste segregation and storage compatibility requirements are met; inspect and manage Satellite Accumulation areas; ensure only authorized personnel add wastes to containers; ensure all Contractor personnel are trained in 40 CFR requirements and individual position requirements; coordinate removal of waste containers; and maintain the Environmental Records binder and required documentation, including environmental permits compliance and close-out.

3.5.5 HW disposal. Contractor shall comply with SFLC Std Spec 0000 Appendix B, Requirements For Environmental Protection At USCG Facilities for HW disposal, and ensure that waste removals are conducted during normal business hours (0800-1600) on Monday through Friday (excluding holidays).

3.5.6 Additional Requirements. The Contractor shall be aware of the following:

3.5.6.1 No Contractor or Subcontractor shall have the authority to sign a Hazardous Waste Manifest using the Coast Guard facility’s EPA Generator ID Number or remove contract generated hazardous waste from the Coast Guard facility without COR or KO-approval.

3.5.6.2 Local environmental regulations at the Government facilities may be more stringent. As with all environmental regulations, the Contractor shall prepare for and comply with local and state regulations.

3.5.6.3 Coast Guard facilities do not maintain Facilities Response Plans (FRPs) per 33 CFR 154. Contractor shall furnish the FRP when required for over-the-water liquids transfers to and from vessels, and is required for oil/fuel transfers to/from vessels for 250 barrels (10,500 gallons) or more.

4. NOTES

4.1 QA inspection forms. QA inspection forms (QA-1 thru QA-5), required in SFLC Std Spec 6310 to be completed and submitted during preservation of “critical-coated surfaces”, are provided at the end of this document.

QA-1 - QUALITY ASSURANCE INSPECTION FORM

(PRESERVATION CHECKLIST)

Vessel Name
Hull #
Work Item #
Work Item Title
Location of Work (incl. frame #’s)
Area (sqft)

CHECKPOINT 1 – COATING SYSTEM COMPLIANCE

Ensure all coatings are in compliance with SFLC Std Spec 6310, Appendix C.

CHECKPOINT 2 - PAINT STORAGE

Ensure all coatings are kept at a temperature of 65 to 85°F at all times, unless otherwise specified by the coating mfgr.

CHECKPOINT 3 - AMBIENT CONDITIONS

Ensure surface and surrounding temperatures are each between 50 and 90°F for water-containing coatings, and 35 and 95°F for other coatings, unless otherwise specified by the coating manufacturer(s).

Ensure maximum relative humidity (RH) is as follows, from surface preparations through final curing of topcoat: 50% for tanks, voids, and vent plenum; and 85% for all other areas, unless otherwise specified by manufacturer(s).

Ensure surface temperature is at least 5°F above the dew point, unless otherwise specified by the coating mfgr.

CHECKPOINT 4 - PRE-SURFACE PREPARATION

Remove surface contaminants (soluble salts, loose rust, mud, and marine growth) with low pressure fresh water wash down (maximum 5,000 psi). If oil and grease are present, perform solvent cleaning, as per SSPC SP-1.

Verify equipment setup, blast media, and surface preparation methods match designated test coupon.

CHECKPOINT 5 - SURFACE PREPARATION

Verify environmental conditions (see CHECKPOINT 3).

Ensure cleanliness of prepared surface is as per specification (i.e.: SSPC SP-11, SP-10, SP WJ-2…).

Verify surface anchor profile using ASTM D4417-Methods B or C against SFLC Std Spec 6310. Conduct profile readings at a minimum of 5 locations for the first 1000-sqft area, and 2 locations for each succeeding 1000-sqft area.

Measure soluble salt conductivity in accordance with SSPC-Guide 15. Conduct 5 measurements per each 1000-sqft area (max. threshold: 70 microsiemens/cm for non-submerged surfaces, 30 microsiemens/cm for submerged surfaces).

CHECKPOINT 6 - PRIMER COAT APPLICATION

Verify environmental conditions (see CHECKPOINT 3).

Verify proper mixing and stand-in (induction) times.

Ensure no paint is applied when the temperature is expected to drop to freezing before the paint has dried.

Ensure surfaces are completely dry, unless otherwise allowed by the coating manufacturer(s).

Verify wet film thickness (WFT) at random, to prevent under or over application. Verify final DFT.

Brush out all runs, sags, drips, and puddles.

Perform visual inspection for holidays and other defects.

CHECKPOINT 7 – STRIPE COAT APPLICATION

Verify environmental conditions (see CHECKPOINT 3).

Ensure overcoating window is as per manufacturer’s instructions.

After primer coat (mist coat after inorganic zinc), brush-apply un-thinned coat of same primer paint over edges, weld seams, cut-outs, and areas of complex geometries @ 3-4 mils wet film thickness (WFT).

CHECKPOINT 8 – TOP COAT APPLICATION

Verify environmental conditions (see CHECKPOINT 3).

Ensure overcoating window is as per manufacturer’s instructions.

Verify proper mixing and stand-in (induction) times, as applicable.

Verify wet film thickness at random, to prevent under or over application.

Brush out all runs, sags, drips, and puddles.

CHECKPOINT 9 – FINAL INSPECTION

Verify final system dry film thickness. Conduct 5 sets of 3 readings for each of the first 3 100-sqft areas, followed by 5 sets of 3 readings for each succeeding 1000-sqft area.

Ensure that system cure is in accordance with manufacturer's recommendation for intended service.

Ensure potable water tank exhaust ventilation is maintained continuously from and during coating application through final system cure, to exhaust all solvent to the atmosphere and to prevent solvent entrapment.

For immersion coatings (including tank U/W body), record date and time of the following events:

Final coat application: _____/_____; Return to service or removal from environment controls: _____/_____

CHECKPOINT 10 – RECORD KEEPING

Complete, sign, and submit all provided QA Inspection Forms.

Name of QP-1/NACE Inspector
Signature
Cert. #
Date / Time

QA-2 - QUALITY ASSURANCE INSPECTION FORM

(ENVIRONMENTAL READINGS)

Vessel Name
Hull #
Work Item #
Work Item Title

Use one sheet for each activity. Record conditions every four hours from before surface preparation to application of final coating system coat.

DATE & TIME
ACTIVITY (Surface preparation, primer coat, barrier coat, top coat, etc…)
LOCATION (Frame & Deck, relation to equipment, etc.)
TEMPERATURE
% REL. HUMID-ITY
DEW PT.
SURFACE
AMBIENT
ΔT

| DP - Surface |

Name of QP-1/NACE Inspector
Signature
Cert. #
Date / Time

QA-3a - QUALITY ASSURANCE INSPECTION FORM

(SURFACE PROFILE LOG FOR PROFILE MEASUREMENTS IAW ASTM D4417-METHOD-C)

Vessel Name
Hull #
Work Item #
Work Item Title
Location of Work (Frame References)
Area (sqft)
SURFACE PREPARATION METHOD
PROFILE ACHIEVED (mils)
Min
Max
Mean

SSPC-SP-10/NACE No. 2

SSPC-SP WJ-1/NACE WJ-1

SSPC-SP WJ-2/NACE WJ-2

SSPC-SP WJ-3/NACE WJ-3

SSPC-SP WJ-4/NACE WJ-4

SSPC-SP-3

SSPC-SP-11

SSPC-SP-11 (inaccessible area)

Brush-blasting (non-metallic substrate)

Abrasive Manufacturer and Sieve Size: _________________________________

Place surface profile replica tapes in the spaces provided below, to serve as permanent QA record. Maintain a separate log for each location. When an area is divided into separate sections, maintain a separate log for each section.

Place Surface Profile Replica Tape Here

Reading:__________ mils Place Surface Profile Replica Tape Here

Reading:__________ mils Place Surface Profile Replica Tape Here

Reading:__________ mils

Place Surface Profile Replica Tape Here

Reading:__________ mils Place Surface Profile Replica Tape Here

Reading:__________ mils Place Surface Profile Replica Tape Here

Reading:__________ mils

Place Surface Profile Replica Tape Here

Reading:__________ mils Place Surface Profile Replica Tape Here

Reading:__________ mils Place Surface Profile Replica Tape Here

Reading:__________ mils

Place Surface Profile Replica Tape Here

Reading:__________ mils Place Surface Profile Replica Tape Here

Reading:__________ mils Place Surface Profile Replica Tape Here

Reading:__________ mils

Place Surface Profile Replica Tape Here

Reading:__________ mils Place Surface Profile Replica Tape Here

Reading:__________ mils Place Surface Profile Replica Tape Here

Reading:__________ mils

Mean Mil Reading (IAW ASTM D4417-Method C) for above 15 readings: ______________

Name of QP-1/NACE Inspector
Signature
Cert. #
Date / Time

QA-3b - QUALITY ASSURANCE INSPECTION FORM

(SURFACE PROFILE LOG FOR PROFILE MEASUREMENTS IAW ASTM D4417-METHOD-B)

Vessel Name
Hull #
Work Item #
Work Item Title
Location of Work (incl. frame #’s)
Area (sqft)
SURFACE PREPARATION METHOD
PROFILE ACHIEVED (mils)
Min
Max
Mean

SSPC-SP-10/NACE No. 2

SSPC-SP WJ-1/NACE WJ-1

SSPC-SP WJ-2/NACE WJ-2

SSPC-SP WJ-3/NACE WJ-3

SSPC-SP WJ-4/NACE WJ-4

SSPC-SP-3

SSPC-SP-11

SSPC-SP-11 (inaccessible area)

Brush-blasting (non-metallic substrate)

Abrasive Manufacturer and Sieve Size: _________________________________

Record measurements taken in the spaces provided below, to serve as permanent QA record. Maintain separate log for each location. When an area is divided into separate sections, maintain a separate log for each section.

Reading:
_____ mils
_____ mils
_____ mils
_____ mils
_____ mils
Reading:
_____ mils
_____ mils
_____ mils
_____ mils
_____ mils
Reading:
_____ mils
_____ mils
_____ mils
_____ mils
_____ mils
Reading:
_____ mils
_____ mils
_____ mils
_____ mils
_____ mils
Reading:
_____ mils
_____ mils
_____ mils
_____ mils
_____ mils
Reading:
_____ mils
_____ mils
_____ mils
_____ mils
_____ mils
Reading:
_____ mils
_____ mils
_____ mils
_____ mils
_____ mils
Reading:
_____ mils
_____ mils
_____ mils
_____ mils
_____ mils
Reading:
_____ mils
_____ mils
_____ mils
_____ mils
_____ mils
Reading:
_____ mils
_____ mils
_____ mils
_____ mils
_____ mils

Mean Mil Reading (IAW ASTM D4417-Method B) for above 10 readings (by column):

_____ mils
_____ mils
_____ mils
_____ mils
_____ mils
Name of QP-1/NACE Inspector
Signature
Cert. #
Date / Time

QA-4 - QUALITY ASSURANCE INSPECTION FORM

(SURFACE SOLUBLE SALT CONDUCTIVITY LOG)

Vessel Name
Hull #
Work Item #
Work Item Title
Location of Work (incl. frame #’s)
Area (sqft)

SOLUBLE SALT CONDUCTIVITY Measurements IAW SSPC-GUIDE 15

DATE
TEST LOCATIONS
CONDUCTIVITY

(microsiemens/cm)

Name of QP-1/NACE Inspector
Signature
Cert. #
Date / Time

QA-5 - QUALITY ASSURANCE DATA FORM

(COATING THICKNESS)

(Use one sheet for each sequence)

Vessel Name
Hull #
Work Item #
Work Item Title
Coating Mfg
Product Name
Batch #
Induction Time
Coating System Sequence (Primer/Touchup/3rd Coat, etc.)

Dry Film Thickness (DFT) Measurements IAW SSPC-PA 2

SPOT
1
2
3
4
5
AVERAGE VALUE

*BASE METAL READING (BMR)

*Required, If Magnetic Pull-Off (Type I/Banana) Gauge Is Used.

Location (Frame Reference): ___________________

SPOT
1
2
3
4
5

Overall Avg. DFT

ADJUSTMENTS

Avg. BMR
Deviation
Before Adjustments
After Adjustments

Avg.

SPOT
1
2
3
4
5

ADJUSTMENTS

Avg. BMR
Deviation
Before Adjustments
After Adjustments

Avg.

SPOT
1
2
3
4
5

ADJUSTMENTS

Avg. BMR
Deviation
Before Adjustments
After Adjustments

Avg.

Application Method (Airless, Conventional Spray, Rolled)
Average DFT
Name of QP-1/NACE Inspector
Signature
Cert. #
Date / Time

63120_0215_FLT

REC_63120_Dks_Exterior_FLT_240' WLBB (30 CGC MACKINAW) (0814) WORK ITEM 1: Decks - Exterior, Preserve (“MIL-SPEC” System)

1. SCOPE

1.1 Intent. This work item describes the requirements for the Contractor to preserve the following exterior deck surfaces, as designated by the COR utilizing method of Weather Deck Non-Skid, MILL-SPEC Coating for Steel or Aluminum:

· 01 Level Focsle: Bullnose thru Frame 13.

· 01 Level Port Weather Deck: Frames 46 thru Frame 83.

· 01 Level Stbd Weather Deck: Frames 46 thru Frame 83.

· 01 Level Port Weather Deck: Frames 83 thru Frame 109.

· 01 Level Stbd Weather Deck: Frames 83 thru Frame 109.

· 01 Level Fantail: Frame 109 thru Frame 133.

· 02 Level Weather Deck: Frame 95 thru Frame 106.

· 04 Level Port Weather Deck: Frame 53 thru Frame 95.

· 04 Level Starboard Weather Deck: Frame 53 thru Frame 99.

· 04.5 Level Weather Deck: Frame 78 thru Frame 93.

· 05 Level Weather Deck: Frame 45 thru Frame 65.

· 05 Level Weather Deck: Frame 62 thru Frame 65.

1.2 Government-furnished property.

None.

2. REFERENCES

Coast Guard Drawings

Coast Guard Drawing 240 WLBB 601-002, Rev B, Booklet of General Plans Coast Guard Publications

Surface Forces Logistics Center Standard Specification 0000 (SFLC Std Spec 0000), 2014, General Requirements

Surface Forces Logistics Center Standard Specification 6310 (SFLC Std Spec 6310), 2014, Requirements for Preservation of Ship Structures

Other References

None.

3. REQUIREMENTS

3.1 General.

3.1.1 CIR.

None.

3.1.2 Tech Rep.

Not applicable.

3.1.3 Protective measures. The Contractor shall protect non-affected vessel’s equipment, components, and spaces during surface preparation and coating application procedures, as specified in SFLC Std Spec 0000, paragraph 3.3.3 (Vessel component, space, and equipment protection). Specific areas/ equipment/ components to be protected include, but are not limited to:

· Adjacent vertical (beyond what is specified in paragraph 3.2.1 (System particulars)).

· Deck fittings.

· Deck equipment.

3.1.4 Interferences. The Contractor shall handle all interferences in accordance with SFLC Std Spec 0000, paragraph 3.3.5 (Interferences).

3.2 Preservation requirements particulars. The Contractor shall accomplish the below specified tasks. Use Coast Guard Drawing 240 WLBB 601-002 as guidance.

3.2.1 Pre-surface preparation wash. Prior to accomplishing surface preparation, accomplish low-pressure (less than 5,000 psi) fresh water wash of all affected surfaces, to remove soluble chlorides and other surface contaminants. Capture, contain, and dispose of wash water for proper disposal in accordance with all Federal, state and local regulations.

3.2.2 Surface preparation and coating application. Prepare and coat the weather deck surfaces designated in paragraph 1.1 (Intent), including bitt and chock foundations, machinery rack guards and machinery foundations, hatches and hatch guards, stanchion sockets, vent pipes, angle coaming area, and approximately six inches up all adjacent vertical surfaces (as applicable); select and use the “Weather Deck Non-Skid, MILL-SPEC Coating for Steel or Aluminum” in SFLC Std Spec 6310, Appendix A (Cutter and Boat Exterior Painting Systems).

3.2.2.1 Surface preparation optional methods. The Contractor shall have the option of using either high/ultrahigh pressure water Jetting, abrasive blasting, or a combination of the two, to achieve the required surface preparation. The Contractor may add abrasives to the waterjet stream, for one or both of the following reasons:

· Achieving greater productivity.

· Achieving the required surface profile.

NOTE

Waterjetting without abrasive addition does not provide any additional anchor profile to the surface, beyond what was present after the previous surface preparation.

3.2.2.2 Substrate inspection. After completion surface preparation and before coating application, perform a visual inspection of the prepared substrate, and submit a CFR.

3.2.2.3 Color selection. Select and use Gray (36076) as the finish/top coat color.

3.2.2.4 Nonskid exclusion. Do not apply non-skid aggregate over vertical surfaces, and the following areas:

· Within two inches of deck fittings, hatches, welds, and protrusions.

· Within six inches of deck coaming, bulkheads, and deck edges.

· Within six inches of all deck edges and bulkheads.

· Within two inches of deck foundations (two inches measured from outermost portion of foundation, for example, foundation brackets on anchor windlass).

· Over deck fittings.

· Over waterways.

· Over welds.

NOTES

1. Surfaces being preserved are considered “critical-coated surfaces”.

2. Unless a containment system is used to contain surface preparation dust and debris and coating application overspray during pier side/dockside preservation, the following must be adhered to:

a. All surface preparation tools/equipment must vacuum-shrouded.

b. Coatings must be applied by brushing or rolling.

3.2.2.5 Non-skid surface appearance and texture. Ensure that the non-skid surface shall show continuous and reasonably uniform profile. Aggregate shall present a rough uniformly coarse appearance over the entire surface with no loosely bound clumps of particles.

3.3 In-process quality control measures. The Contractor shall abide by all the safety, preservation, and quality control requirements specified in SFLC Std Spec 0000, paragraph 3.2.4.2 (In-process QC measures for “critical-coated surfaces).

4. NOTES

4.1 Definition of coaming. Vertical raised sections of deck plating around an opening that provide a frame and/or deflect water, such as around a hatch or gooseneck.

63120_PWB_0415_IBCT

REC_63120_IBCT_BuoyDck_ConstDck_ 240' WLBB (30 CGC MACKINAW) (0415 WORK ITEM 2: Decks – Exterior (Buoy Deck), Preserve 100% (Level II)

1. SCOPE

1.1 Intent. This work item describes the requirements for the Contractor to preserve the Buoy Deck surfaces, shown on Coast Guard Drawing 240 WLBB 601-002 (see 4.1 (Definitions)).

1.2 Government-furnished property.

None.

2. REFERENCES

Coast Guard Drawings

Coast Guard Drawing 240 WLBB 601-002, Rev D, Booklet of General Plans Coast Guard Publications

Surface Forces Logistics Center Standard Specification 0000 (SFLC Std Spec 0000), 2014, General Requirements

Surface Forces Logistics Center Standard Specification 6310 (SFLC Std Spec 6310), 2014, Requirements for Preservation of Ship Structures

Other References

MIL-A-22262, Mar 1996; Abrasive Blasting Media Ship Hull Blast Cleaning

The Society for Protective Coatings (SSPC)/NACE-International (NACE) Joint Surface Preparation Standard SSPC-SP 10/NACE No. 2, 2007, Near-White Blast Cleaning

3. REQUIREMENTS

3.1 General.

3.1.1 CIR.

None.

3.1.2 Tech Rep.

Not applicable.

3.1.3 Protective measures. The Contractor shall furnish and install all protective coverings to seal off and protect all non-affected vessel's components, equipment, and spaces near the work area against contamination during the performance of work. Upon completion of work, the Contractor shall remove all installed protective measures, inspect for the presence of contamination, and return all contaminated equipment, components, and spaces to original condition of cleanliness. Specific areas/equipment/components to be protected include, but are not limited to:

· Buoy handling equipment/deck machinery.

· Adjacent bulkhead surfaces.

· Deck fittings.

3.1.4 Interferences. The Contractor shall handle all interferences in accordance with SFLC Std Spec 0000, paragraph 3.3.5 (Interferences).

3.2 Preservation particulars. The Contractor shall accomplish the following tasks:

3.2.1 Pre-surface preparation wash. Accomplish low-pressure (less than 5,000 psi) fresh water wash of all affected surfaces, to remove soluble chlorides and other surface contaminants. Capture, contain, and dispose of wash water for proper disposal in accordance with all Federal, state and local regulations.

3.2.2 Surface preparation. Prepare all designated deck surfaces (see 4.1 (Definition) by abrasive-blasting to SSPC-SP10/NACE No. 2, using grit conforming to MIL-A-22262 (1.5 to 2.5 mil anchor profile).

3.2.3 Substrate inspection. After completion surface preparation and before coating application, the Contractor shall perform a visual inspection of the prepared substrate, in the presence of the Coast Guard Inspector. Submit a CFR.

3.2.4 Surface coating. Coat all prepared surfaces with the coating system specified for “Weather Decks (Weather Deck, Buoy Tender Working Deck)”, in SFLC Std Spec 6310, Appendix A (Cutter and Boat Exterior Painting Systems). Select a Gray (36231) inorganic zinc coating.

CAUTION

1. Unless a containment system is used during pier side/dockside preservation, the following must be adhered to:

a) All surface preparation tools/equipment must be vacuum-shrouded or close-looped systems, to contain surface preparation dust and debris.

b) Extreme precaution must be taken while spraying the inorganic zinc coating, to prevent coating application overspray.

2. Organic zinc coating may not be substituted for inorganic zinc for Barge Buoy Deck surfaces.

3.3 In-process quality control measures. The Contractor shall abide by all the safety, preservation, and quality control requirements specified in SFLC Std Spec 0000, paragraph 3.2.4.2 (In-process QC measures for “critical-coated surfaces). Surfaces being preserved are considered “critical-coated surfaces”.

4. NOTES

4.1 Definitions.

4.1.1 Buoy Deck. The Buoy Deck is defined as horizontal Main Deck surfaces from between Frames 6 and 46, port and starboard, including bitt and chock foundations, buttons, cleats, pad eyes, machinery rack guards and machinery foundations, hatches and hatch guards, cribbing post and stanchion sockets, cribbing posts, stanchions, vent pipes and goosenecks, angle coaming, crane pedestal, and approximately six inches up all adjacent vertical surfaces, as applicable.

4.1.2 Deck coaming. Coaming is defined as vertical raised sections of deck plating around an opening that provide a frame and/or deflect water, such as around a hatch or gooseneck.

63140_PWB_0914_IBCT

REC_63140_BuoyPrt_IBCT_240' WLBB (30 CGC MACKINAW) (0210) WORK ITEM 3: Hull Plating Freeboard (Buoy Port Areas), Preserve

1. SCOPE

1.1 Intent. This work item describes the requirements for the Contractor to prepare and coat the buoy working areas, shown on Coast Guard Drawing 240 WLBB 601-002 (see 4.1 (Definition of Buoy Port)), and as designated by the COR.

1.2 Government-furnished property.

None.

2. REFERENCES

Coast Guard Drawings

Coast Guard Drawing 240 WLBB 601-002, Rev B, Booklet of General Plans Coast Guard Publications

Surface Forces Logistics Center Standard Specification 0000 (SFLC Std Spec 0000), 2014, General Requirements

Surface Forces Logistics Center Standard Specification 6310 (SFLC Std Spec 6310), 2014, Requirements for Preservation of Ship Structures

Other References

None.

3. REQUIREMENTS

3.1 General.

3.1.1 CIR.

None.

3.1.2 Tech Rep.

Not applicable.

3.1.3 Protective measures - general. The Contractor shall furnish and install all protective coverings to seal off and protect all non-affected vessel's components, equipment, and spaces in the vicinity of the work area against contamination during the performance of work. Upon completion of work, the Contractor shall remove all installed protective measures, inspect for the presence of contamination, and return all contaminated equipment, components, and spaces to original condition of cleanliness.

· Areas where underwater body coating system interfaces with freeboard coating system (unless u/w body surfaces are also being preserved).

· Adjacent deck surfaces and deck fittings.

· Liferings

· P-6/P-100 pumps

· Handrails

· Deck equipment

3.1.4 Interferences. The Contractor shall handle all interferences in accordance with SFLC Std Spec 0000, paragraph 3.3.5 (Interferences).

3.1.5 Pre-surface preparation wash. Prior to accomplishing surface preparation, the Contractor shall accomplish low-pressure (less than 5,000 psi) fresh water wash of all affected surfaces, to remove soluble chlorides and other surface contaminants.

3.1.5.1 Ensure that the water utilized for the low-pressure wash is of sufficient purity and quality that it does not prevent the surface being preserved from achieving the required degree of surface cleanliness or nonvisible contamination criteria.

3.1.5.2 Capture, contain, and dispose of wash water for proper disposal in accordance with all Federal, state and local regulations.

3.1.6 Substrate inspection. After completion surface preparation and before coating application, the Contractor shall perform a visual inspection of the prepared substrate, and submit a CFR.

3.2 Preservation particulars. The Contractor shall accomplish prepare and coat the designated buoy port surfaces in accordance with SFLC Std Spec 6310, using the system specified for “Freeboard/Superstructure, Steel – Prone to Mechanical Damage or High Wear”.

3.2.1 Ensure that all non-affected surfaces adjacent to the designated areas are feathered into the designated area, in accordance with the feathering guidance provided in SFLC Std Spec 6310, paragraph 3.1.13 (Touch-ups and minor coating repairs).

NOTE

Waterjetting may not used as a surface preparation, in view of the fact that the specified coating system includes an Inorganic Zinc coating as the primer coat.

3.2.2 Abide by all the safety, preservation, and quality control requirements specified in SFLC Std Spec 0000, paragraph 3.2.4.2 (In-process QC measures for “critical-coated surfaces).

NOTE

Surfaces being preserved are considered “critical-coated surfaces”.

3.3 Repair of un-intended damages. The Contractor shall repair all damages, including overspray, incurred to surfaces not covered by the scope of this work item, during surface preparation and paint application procedures.

4. NOTES

4.1 Definition of Buoy Port. The Buoy Port areas are defined as freeboard surfaces between frames 15 and 26, port and starboard, from the deck level down to the top of the boot-topping; and all inboard surfaces of the gunwale.

63140_HllPltngFrBdPrsrvPrtl_0814_FLT

REC_63140_HllPltngFrBdPrsrvPrtl_FLT_240' WLBB (30 CGC MACKINAW) (1213) WORK ITEM 4: Hull Plating Freeboard, Preserve – “Partial”(Level I)

1. SCOPE

1.1 Intent. This work item describes the requirements for the Contractor to perform partial preservation of the freeboard surfaces, as designated by the COR. Refer to 4.1 Definition of freeboard surfaces.

1.2 Government-furnished property.

None.

2. REFERENCES

Coast Guard Drawings

Coast Guard Drawing 240 WLBB 601-002, Rev B, Booklet of General Plans

Coast Guard Fleet Drawing FL 2804-12, Rev -, U.S.C.G. Emblem

Coast Guard Fleet Drawing FL 2804-22, Rev-, Consolidated Visual ID for Cutters

Coast Guard Publications

Surface Forces Logistics Center Standard Specification 0000 (SFLC Std Spec 0000), 2014, General Requirements

Surface Forces Logistics Center Standard Specification 6310 (SFLC Std Spec 6310), 2014, Requirements for Preservation of Ship Structures

Other References

MIL-A-22262, Mar 1996; Abrasive Blasting Media Ship Hull Blast Cleaning

The Society for Protective Coatings (SSPC) Surface Preparation Specification No. 1 (SSPC-SP 1), 2015, Solvent Cleaning

The Society for Protective Coatings (SSPC)/NACE-International (NACE) Joint Surface Preparation Standard SSPC-SP 10/NACE No. 2, 2007, Near-White Blast Cleaning

The Society for Protective Coatings (SSPC) Surface Preparation Specification No.11 (SSPC-SP 11), 2013, Power Tool Cleaning to Bare Metal

The Society for Protective Coatings (SSPC)/NACE International (NACE) Joint Surface Preparation Standard SSPC-SP WJ-2/NACE WJ-2, 2012, Waterjet Cleaning of Metals – Very Thorough Cleaning

3. REQUIREMENTS

3.1 General.

3.1.1 CIR.

None.

3.1.2 Tech Rep.

Not applicable.

3.1.3 Protective measures - general. The Contractor shall furnish and install all protective coverings to seal off and protect all non-affected vessel's components, equipment, and spaces in the vicinity of the work area against contamination during the performance of work. Upon completion of work, the Contractor shall remove all installed protective measures, inspect for the presence of contamination, and return all contaminated equipment, components, and spaces to original condition of cleanliness. Specific areas/equipment/components to be protected include, but are not limited to:

· Areas where underwater body coating system interfaces with freeboard coating system (unless u/w body surfaces are also being preserved).

· Adjacent deck surfaces and deck fittings.

· Liferails.

· Vent intakes.

· Deck equipment.

· Overboard discharges.

3.1.4 Interferences. The Contractor shall handle all interferences in accordance with SFLC Std Spec 0000, paragraph 3.3.5 (Interferences). Known interferences include, but are not limited to the below listed:

· Locking fenders.

3.2 Initial inspection. Prior to removing the existing coating system, the Contractor shall inspect and verify whether all hull identification numbers and letters have permanent markings (weld beads or impressions), showing their location on the hull. Submit a CFR.

3.3 Pre-surface preparation wash. The Contractor shall accomplish low-pressure (less than 5,000 psi) fresh water wash of all affected surfaces, to remove soluble chlorides and other surface contaminants. Collect wash water for proper disposal in accordance with all Federal, state and local regulations.

3.4 Preparation. The Contractor shall accomplish the following tasks:

3.4.1 Prepare the total square footage of areas, as designated by the COR, where there is evidence of coating failure, by water jetting to a SSPC-SP WJ-2/NACE WJ-2 standard, and/or by one or a combination of the following surface preparation methods, as applicable to substrate type:

Table 1 - Preparation Methods

ABRASIVE BLAST-CLEANING
POWER TOOL CLEANING
STEEL SUBSTRATE
ALUMINUM SUBSTRATE
STEEL SUBSTRATE
ALUMINUM SUBSTRATE
Abrasive-blasting to SSPC-SP10/NACE No. 2, using grit conforming to MIL-A-22262 (to produce a 1.5 to 2.5 mil anchor profile).
Brush blasting with clean, fine aluminum oxide, garnet or equivalent inert material conforming CID A-A-59316, Type I & IV, to remove all existing coatings and rust spots, down to bare metal and produce a 1.0-1.5 mil anchor profile).
Power tool cleaning to SSPC-SP 11 (to produce a 1.0 mil anchor profile)
Mechanical cleaning, using power sanders and abrasive sandpaper with no metallic contents, to remove all existing coatings and rust spots, down to bare metal

3.4.2 Roughen/abrade all remaining surfaces where existing top coating is intact, by sweep-blasting or using suitable grit paper, to de-gloss the top-coating and produce a suitable surface profile to allow proper adhesion of a new top coating.

3.4.3 Feather edges of top coating into adjacent bare areas, to create a smooth transition.

NOTES

1. A profile suitable for over coating would be similar to what is produced by abrading the coating with 100-grit paper.

2. Water jetting without abrasive addition does not provide any additional anchor profile to the surface, beyond what was present after the previous surface preparation.

3.5 Post- preparation cleaning. The Contractor shall perform solvent cleaning of all prepared surfaces, in accordance with SSPC-SP 1, prior to coating application. Collect all debris from solvent cleaning for proper disposal.

3.6 Coating application. As applicable, the Contractor shall coat all surfaces as specified in Table 2. Select top/finish color coat in accordance with COMDTINST MI0360.3.Table 6.2 (Underwater Body, Boot-top, and Freeboard Colors)

Table 2: Coating Methods

steel
aluminum
Step 1: Prime
Spot prime all bare steel surfaces with an “Epoxy Primer/Mid-Coat - Polysiloxane system” coating, to a thickness matching that of existing adjacent undercoating, ensuring that the primer coating extends over the feathered edges of the sound/intact coating, to minimize edge lifting and provide a better appearance.
Spot prime all bare aluminumsurfaces with a “Polysiloxane” coating, to a thickness of 1.0 -2.0 mils DFT.

Step 2:

Top Coat

Top-coat all primed and abraded surfaces: Apply an “Epoxy Polysiloxane”, White (17925), top coat to ensure a uniform thickness throughout.
Top-coat all primed and abraded surfaces: Apply an “Epoxy Polysiloxane”, White (17925), top coat to ensure a uniform thickness throughout.

3.7 Visual identification markings. The Contractor shall ensure the following:

3.7.1 Decals. Coast Guard Emblem decals may be substituted for painted emblems. Vinyl adhesive letters and numbers may also be substituted for painted letters and numbers - at the Contractor’s discretion.

3.7.2 Painted markings: Paint all distinctive visual identification markings, including the Coast Guard diagonal stripes, "U.S. COAST GUARD" legends, hull numbers, and draft marks in accordance with SFLC Std Spec 6310, and Coast Guard Drawings FL 2804-12 and FL 2804-22 as applicable. Surfaces being preserved are considered “critical-coated surfaces”.

CAUTION

Unless a containment system is used to contain surface preparation dust, debris, and coating application overspray during pier side/dockside preservation, the following must be adhered to:

1. All surface preparation tools/equipment must vacuum-shrouded.

2. Coatings must be applied by brushing or rolling, which may require additional coats to obtain required dry film thickness.

NOTEs

Although there may be several possible procurement sources for the Coast Guard Emblem decals and vinyl adhesive letters and numbers, one known source is:

Brace Enterprises 10250 SE 138 Terrace Dunnellon, FL 34431

352-489-4442 / Fax: 352-489-4476 www.braceenterprise.com

3.8 In-process quality control measures. The Contractor shall abide by all the safety, preservation, and quality control requirements specified in SFLC Std Spec 0000, paragraph 3.2.4.2 (In-process QC measures for “critical-coated surfaces).

4. NOTES

4.1 Definition of freeboard surfaces. For the purposes of this item the freeboard is defined as exterior steel hull surfaces from the upper limit of the boot-topping to the top of the bulwark, including lifeline stanchions, as shown on . Coast Guard Drawing 240 WLBB 601-002.

63140_1114_FLT

REC_63140_100Prcnt_FLT_240' WLBB (30 CGC MACKINAW) (0210) WORK ITEM 5: Hull Plating Freeboard, Preserve “100%” (Level II)

1. SCOPE

1.1 Intent. This work item describes the requirements for the Contractor to preserve 100% of the freeboard surfaces, as designated by the COR. Refer to 4.1 Definition of freeboard surfaces.

1.2 Government-furnished property.

None.

2. REFERENCES

Coast Guard Drawings

Coast Guard Drawing 240 WLBB 601-002, Rev B, Booklet of General Plans Coast Guard Fleet Drawing FL 2804-12, Rev -, U.S.C.G. Emblem

Coast Guard Fleet Drawing FL 2804-22, Rev-, Consolidated Visual ID for Cutters

Coast Guard Publications

Surface Forces Logistics Center Standard Specification 0000 (SFLC Std Spec 0000), 2014, General Requirements

Surface Forces Logistics Center Standard Specification 6310 (SFLC Std Spec 6310), 2014, Requirements for Preservation of Ship Structures

Other References

None.

3. REQUIREMENTS

3.1 General.

3.1.1 CIR.

None.

3.1.2 Tech Rep.

Not applicable.

3.1.3 Protective measures - general. The Contractor shall furnish and install all protective coverings to seal off and protect all non-affected vessel's components, equipment, and spaces in the vicinity of the work area against contamination during the performance of work. Upon completion of work, the Contractor shall remove all installed protective measures, inspect for the presence of contamination, and return all contaminated equipment, components, and spaces to original condition of cleanliness. Specific areas/equipment/components to be protected include, but are not limited to:

· Areas where underwater body coating system interfaces with freeboard coating system (unless u/w body surfaces are also being preserved).

· Adjacent deck surfaces and deck fittings.

· Life rails.

· Vents.

· Bulkheads.

· Vent intakes.

· Deck equipment

3.1.4 Interferences. The Contractor shall handle all interferences in accordance with SFLC Std Spec 0000, paragraph 3.3.5 (Interferences). Known interferences include, but are not limited to the below-listed:

· Locking fenders.

3.2 Initial inspection. Prior to removing the existing coating system, the Contractor shall inspect and verify whether or not all hull identification numbers and letters have permanent markings (weld beads or impressions), showing their location on the hull. Submit a CFR.

3.3 Surface preparation optional methods. The Contractor shall have the option of using either high/ultrahigh pressure water Jetting or abrasive blasting to achieve the required surface preparation, prior to application of the coating system specified in 3.6 (Preservation requirements). The Contractor may add abrasives to the waterjet stream, for one or both of the following reasons:

· Achieving greater productivity.

· Achieving the required surface profile.

NOTE

Waterjetting without abrasive addition does not provide any additional anchor profile to the surface, beyond what was present after the previous surface preparation.

3.4 Substrate inspection. After completing surface preparation and before coating application, the Contractor shall perform a visual inspection of the prepared substrate, and submit a CFR.

3.5 Pre-surface preparation wash. The Contractor shall accomplish low-pressure (less than 5,000 psi) fresh water wash of all affected surfaces, to remove soluble chlorides and other surface contaminants. Capture, contain, and dispose of wash water for proper disposal in accordance with all Federal, state and local regulations.

3.6 Preservation…

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