0105_A_DECK_HOUSE_CLEANING_AND_PAINTING_(SPOT_BLAST)_REV_A.docx

USNS CARL BRASHEAR

(T-AKE 7)

DECK HOUSE CLEANING AND PAINTING (SPOT BLAST) REV –

1.0 ABSTRACT:

1.1 This item describes the surface preparation and painting of the ship’s super structure aft of frame 58.

2.0 REFERENCES:

2.1 Steel Structures Painting Council, Good Painting Practice, Volume 1, Fourth Edition.

2.2 PPG-PMC MSC Handbook

3.0 ITEM LOCATION/DESCRIPTION:

3.1 Location/Quantity:

3.1.1 Location: The deck house is defined with the area highlighted, to include both port and starboard, and the aft sections.

a. All vertical surfaces Frame 58 to Frame 78, Main deck to 08 Level.

b. This includes the vertical surfaces inboard of the shell, Frame 58 to Frame 78, Main deck to 08 Level.

c. This includes the side shell – Frame 58 to Frame 78, Main deck to 08 Level.

d. The shell, main deck to 02 level Frame 77 to 78.

e. Stack.

f. All aft facing vertical surfaces above Main deck aft of frame 58.

g. Decks at 02, 03 and 07 level.

h. This includes all structure supporting the decks.

i. The structure supporting grated walkways/decks at 04, 05 and 06 level.

j. Handrails at all levels above 01 aft, of frame 58.

k. Ladders frame 76-78 port and starboard.

l. This includes surfaces internal AND external to the ladder way.

m. Pipe hangers and light brackets and other attaching hardware between frame 58 and 78 up to 3 inches from the surface they are attached to.

3.1.2 Location does NOT include:

a. Pipe attached to the house.

b. The cranes, their support structure or the superstructure forward of frame 58.

c. The hanger bay doors at frame 78 or roller doors at frame 71.

d. Life boat davits and support structure.

e. Deck grating at 04, 05 and 06 level.

f. Inclined ladders at various levels, frame 62, frame 69 to frame 71, port and starboard.

3.1.3 Quantity:

Approx area

4.0 GOVERNMENT FURNISHED EQUIPMENT/MATERIAL/SERVICES:

4.1 Government Furnished Equipment (GFE): None.

4.2 Government Furnished Material (GFM):

For PSX 700SG application

4.3 Government Furnished Services (GFS):

4.3.1 Paint manufacturer’s Technical Field Service Representative

5.0 NOTES

5.1 The contractor and all subcontractors, regardless of tier, must consult the General Technical Requirements (GTR) to determine applicability to this work item. In performance of this work item, the contractor and all subcontractors regardless of tier must comply with the requirements of all applicable GTRs.

5.2 The contractor and all subcontractors regardless of tier are advised to review the other work items under this contract to determine their effect on the work required under this work item.

5.3 THIS SHIP CONTAINS HIGH VOLTAGE (HV) ELECTRICAL SYSTEMS. OBEY ALL POSTED AND VERBAL INSTRUCTIONS REGARDING SAFETY AND EXCLUSION FROM HIGH VOLTAGE AREAS. AT NO TIME APPROACH, WORK ON, OR ENTER A HIGH VOLTAGE AREA WITHOUT PROPER AUTHORIZATION.

5.4 THE T-AKE CLASS ELECTRICAL COLOR CODING DOES NOT FOLLOW CONSISTENT COLOR SCHEME. THE SHIP IS KNOWN TO HAVE CURRENT CARRYING CONDUCTORS COLORED GREEN, BLUE, BLACK, AND WHITE. ASSUME ALL ELECTRICAL CABLES ARE ENERGIZED UNTIL TESTED AND PROVEN OTHERWISE. TEST ALL ELECTRICAL CABLES TO ENSURE THEY ARE DE-ENERGIZED PRIOR TO WORKING ON THE ITEM.

5.5 Grit blasting is specified due to the lack of adequate existing surface profile. No alternative surface preparation will be accepted. Bids should reflect all containment, staging and cover up necessary for grit blasting and airless spray application of the coating.

5.6 No paint shall be applied between the hours of sunset and 0800 without prior written approval from the MSCREP.

5.7 Government furnished solvents are for viscosity control only, not equipment clean up. Utilize reference 2.2 for proper product utilization with each solvent.

6.0 QUALITY ASSURANCE REQUIREMENTS:

6.1 The government furnished paint manufacturer’s representative will provide quality assurance for the Government. This is above and beyond those QA requirements already imposed on the contractor.

7.0 STATEMENT OF WORK REQUIRED:

7.1 Tag-Out all required systems and equipment. Drain and dispose of any liquid in accordance with all federal, state, and local regulations.

7.2 CHECKPOINT: Prove all drains free and clear. Submit report.

7.3 Wash the entire area identified in paragraph 3.1 with fresh water. Water pressure shall be adequate to remove all peeling, blistered and flaking paint and salts to the satisfaction of the MSCREP.

7.4 CHECKPOINT: Immediately following the completion of fresh water washing of the vessel’s surfaces, conduct a coatings survey to identify specific areas to be prepared to SSPC-SP10/NACE 2 (paragraph 7.9) with the following personnel in attendance:

7.4.1 Paint Manufacturer’s Representative

7.4.2 Contractor’s paint representative

7.4.3 Port Engineer

7.5 Ship’s Master or his designated representative Any pipe hanger and light bracket and other attaching hardware, handrails, stanchions, or other areas/items beyond ability to preserve shall be noted via Condition Report.

7.6 CHECKPOINT: Securely mask and protect all of the following with material approved by the MSCREP of sufficient density to prevent entry of dirt, debris and grit blasting materials into the interior of the ship during grit blasting.

7.6.1 Temporarily install and maintain protective coverings on all deckhouse windows and Bridge windows and plug all overboard discharges in way of painting surfaces. Remove coverings upon completion and final acceptance.

7.6.2 Temporarily remove label plates and reinstall on completion. Label plates that are riveted to the hull or otherwise permanently installed need not be removed, and shall be adequately protected.

a. Location and description of each label shall be documented and submitted to MSCREP prior to removal.

7.6.3 Temporarily remove grating at 03, 04 and 05 levels to reach the support structure for this grating.

a. Secure areas from normal foot traffic while grating is removed.

7.6.4 Adequately mask all normally unpainted surfaces.

7.7 Inspect protective coverings no less than the start of each workday.

7.8 Accomplish the requirements of Surface Preparation Standard SSPC-SP1, Solvent Cleaning using Prep 88, to remove all dirt, oil, grease, soluble salts or other organic matter.

7.8.1 Biodegradable cleaners or other eco-friendly methods/agents shall be used to the greatest extent possible.

7.8.2 CHECKPOINT: Upon completion of all cleaning, chloride testing shall be performed at random locations.

a. The maximum allowable contamination concentrations shall be less than 10 µg/cm2 of chloride contaminants as determined by field or laboratory analysis using reliable, reproducible test equipment.

b. If contamination is found, additional cleaning shall be accomplished to bring within allowable limits. Additional tests shall be made to determine the extent of contamination and to prove the success of remediation.

7.9 Accomplish blasting in accordance with Surface Preparation Standard, SSPC-SP10/NACE 2, Near White Metal Blast Cleaning to the area identified in paragraph 3.1.

7.9.1 Assume 30% of the total surface area identified in paragraph 3.1.1 shall be blasted to SSPC-SP10/NACE 2.

7.9.2 Areas identified as needing to be brought to bare metal but not able to be blasted to SSPC-SP10/NACE 2 are to be mechanically cleaned to SSPC-SP11, Power Tool Cleaning to Bare Metal.

7.9.3 Taper all edges 1” to 2” at the substrate.

7.9.4 CHECKPOINT: The profile achieved shall be angular in nature and two (2) to four (4) mil deep.

7.9.5 Profile shall be determined using a Keane-Tator (or equal) Surface Profile Comparator.

7.9.6 Testex (or equal) Replica Tape shall be used at a rate of one (1) reading per 1,000 SF for verification.

7.9.7 Replica Tape shall be mounted, identified as to location and included as part of the final paint report.

7.10 CHECKPOINT: Immediately prior to coating the surface shall be re-tested for non-visual surface contaminates at random locations to ensure that the surfaces have not been re-contaminated.

7.10.1 The maximum allowable contamination concentrations shall be less than 10 µg/cm2 of chloride contaminants as determined by field or laboratory analysis using reliable, reproducible test equipment.

7.10.2 If contamination is found, additional cleaning shall be accomplished to bring within allowable limits. Additional tests shall be made to determine the extent of contamination and to prove the success of remediation.

7.10.3 Results of this testing shall be presented to the MSCREP at time of inspection for coating application.

7.11 Upon completion of exterior surface preparation and after approval by the MSCREP, apply the coating systems described below, under the direct supervision of the MSCREP.

7.12 Replace handrails, pipe hanger angle, and mounting plates beyond repair or ability to preserve.

7.12.1 For estimation purposes contractor shall assume approximately 1000 linear feet of 1” handrail, 300 linear feet of 1.5” Angle, and 200 each pipe hangers.

7.12.2 Handrail shall be solid stock, not hollow pipe.

7.12.3 Pipe hangers and mounting plates shall be 316 stainless steel and match original sizing and dimensions.

7.13 Replace deck grating clips beyond repair or ability to preserve. For estimation purposes contractor shall assume 1000 clips require replacement. Replacement clips shall be 316SS.

7.14 CHECKPOINT: Prior to applying any paint coat, the previous coat shall be proven properly cured and ready for follow on coating.

7.14.1 All coatings shall be applied in accordance with manufacturer’s requirements and references 2.1 and 2.2. This includes temperature, humidity, and cure time limitations. Provide containment to maintain conditions for coating system application.

7.15 In areas brought to bare metal, apply One (1) stripe coat of Amercoat 240, (Red Oxide) at 5-6 mils DFT, includes all bare metal welds, attachments, pipe supports, window edges, railings and any sharp edges.

7.16 Follow with One (1) coat of Amercoat 240, (Red Oxide) at 5-6 mils DFT. Follow this with one (1) coat of Amercoat 240 (Off White) at 5-6 mils DFT.

7.17 For 100% of the total surface area identified in paragraph 3.1.1, apply one (1) full coat PSX 700SG, (Haze Gray) 3-4 mils DFT.

7.17.1 All coatings shall be applied by airless spray

7.17.2 Use Amercoat 101 solvent only.

7.18 Replace all hull markings and stack stripes ensuring proper coloring is utilized.

7.19 Remove protections put in place upon completion of all coatings.

7.20 CHECKPOINT: Prove all drains free and clear. Submit report

8.0 GENERAL REQUIREMENTS: None additional.

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