Sources Sought DRAFT Minimum Specifications Rev 8-19-2020.docx

DRAFT Minimum Requirements Water-jetting and Abrasive Blasting for Non-skid Removal on Navy Substrates

1.0 DESCRIPTION OF SERVICES/INTRODUCTION:

Navy Surface Warfare Center Carderock Division (NSWCCD) requires water-jetting at high and ultra-high pressures and abrasive blasting for a project that is seeking to understand substrate material loss as a result of surface preparation on flight decks during nonskid removal. Work described is a collaborative effort with NSWCCD representatives. NSWCCD will need to observe testing, record observations, and conduct and record measurements while work is being performed by the contractor at the contractor’s facility.

2.0 BACKGROUND:

The work described herein is in support of NSWCCD efforts to investigate material loss resulting from common preparation methods utilized on the waterfront. Two types of conditions will be present in the work being performed: (1) bare substrates to understand the risk of utilizing a single surface preparation method, and (2) substrates with applied nonskid (for water jetting) and substrates previously prepared by water-jetting (for abrasive blasting) to replicate surface preparation conditions as experienced at the waterfront. The work will be scheduled in collaboration with NSWCCD and contractor performing work herein.

3.0 OBJECTIVE:

3.1 Details of specimens provided by NSWCCD and work to be performed by contractor

· Contractor will prepare test substrates provided by NSWCCD in cycles (trips).

· Cycles will be tentatively separated by approximately 2-4 weeks, depending on scheduling and availability.

· Specimens will be sized 3” x 3” coupons, fixated onto 1’ x 1’ base plates for easy maneuverability and feasibility of testing.

· 4 coupons per 1’ x 1’ test plate.

· Water-jetting to be performed may require a cleanliness of SSCP SP-2

· Abrasive blasting to be performed may require a cleanliness of SSPC-SP 10.

3.2 Tasking from NSWCCD at contactor facility

· NSWCCD will transport test substrates and work with Contractor on creating a suitable fixture to hold the 1’ x 1’ panels.

· NSWCCD will be present during testing to observe and record pressures from water-jetting equipment and blasting equipment, blast media being used, and time required to prepare the surfaces.

· NSWCCD will record mass loss and thickness data after water-jetting and abrasive blasting, and remove test substrates for the next portion of testing.

3.3 Water-jetting services

3.3.1 Work includes water-jetting aluminum specimen types 5456, and 6082, and steel specimen types HSLA 100, and HSLA 80 as provided by NSWCCD.

Total coverage over all cycles: Water-Jetting Total = 192 sq. ft.

3.3.2 Contractor shall accomplish Water-Jetting items listed in 3.3.3. A single cycle will be described as the time it takes to perform surface prep to SSPC WJ-2. Cycles in line item #1 will be spaced out by 2-4 weeks so that NSWCCD can recoat substrate plates. In line item # 2 – 3 of 4 cycles will be run at time to achieve WJ-2 and 1 of 4 cycles at 4 times the amount of time it takes to prepare to SSPC WJ-2.

3.3.3 Water-Jetting

1) 5 cycles of water-jetting to remove nonskid coating system (32 sq. ft. of plate each cycle that hold 3”x3” coupons)

a. 16 sq. ft. of plate – HPWJ @ 30,000 PSI

i. 64 coupons (3” x 3”) held within the 16 sq. ft. of plate

b. 16 sq. ft. of plate – UHPWJ @ 40,000 PSI

i. 64 coupons (3” x 3”) held within the 16 sq. ft. of plate

2) 4 cycles of water-jetting for extended periods of dwell time over bare substrate (8 sq. ft. of plate each cycle that hold 3” x 3” coupons)

a. 4 sq. ft. of plate - HPWJ @ 30,000 PSI

i. 16 coupons (3” x 3”) held within the 4 sq. ft. of plate

b. 4 sq. ft. of plate - UHPWJ @ 40,000 PSI

i. 16 coupons (3” x 3”) held within the 4 sq. ft. of plate

3.3.4 Special Qualifications, Contractor must be familiar with surface preparation methods commonly used in the navy, SSPC water-jetting cleanliness standards

3.4 Abrasive Blasting services

Total coverage over all cycles of abrasive blasting, main work = 244 sq. ft.

3.4.2 The contractor shall accomplish items in 3.4.3. Cycles in line item #1 (in section 3.4.3) will be spaced out by 2-4 weeks so that NSWCCD can recoat substrate plates.

3.4.3 Abrasive Blasting

1) 5 cycles of abrasive blasting (36 sq. ft. with base plates each cycle) in accordance with SSPC-SP 10 or SSPC-SP 10/L(WAB)/NACE WAB-2/L as necessary according to dry or wet blast. Provide a 3-6 mil profile.

a. 8 sq. ft. of vapor blasting

i. 32 coupons (3” x 3”) held within the 8 sq. ft. of plate

ii. 30-40 Garnet

iii. 160 psi

b. 8 sq. ft. of slurry blasting

i. 32 coupons (3” x 3”) held within the 8 sq. ft. of plate

ii. 30-40 Garnet

iii. 160 psi

c. 8 sq. ft. of dry blasting with aluminum oxide blast media

i. 32 coupons (3” x 3”) held within the 8 sq. ft. of plate

ii. 16 mesh for steel

iii. 30-40 mesh for aluminum

iv. Pressure may vary for aluminum vs steel substrates

d. 12 sq. ft. of dry blasting with stainless steel shot blast media

i. 48 coupons (3” x 3”) held within the 12 sq. ft. of plate

ii. 12-50 (ES-450 and ES-750) shot

2) 1 cycle each of abrasive blasting for extended periods of dwell time (30 sec, 2 min, 5 min, and 10 min) over substrate (16 sq. ft. with base plates each cycle), for a total of 4 cycles.

a. 4 sq. ft. of vapor blasting

i. 16 coupons (3” x 3”) held within the 4 sq. ft. of plate

b. 4 sq. ft. of slurry blasting

i. 16 coupons (3” x 3”) held within the 4 sq. ft. of plate

c. 4 sq. ft. of dry blasting with aluminum oxide blast media

i. 16 coupons (3” x 3”) held within the 4 sq. ft. of plate

d. 4 sq. ft. of dry blasting with stainless steel shot blast media

i. 16 coupons (3” x 3”) held within the 4 sq. ft. of plate

4.0 SPECIAL QUALIFICATIONS

4.1 Contractor must be familiar with surface preparation methods commonly used in the navy, SSPC water-jetting and abrasive blasting cleanliness standards.

4.2 Contractor facility must be located within 225 miles of Naval Surface Warfare Center Carderock Division (NSWCCD) 9500 MacArthur Blvd., Bethesda MD 20817

4.0 GOVERNMENT FURNISHED EQUIPMENT/PROPERTY/INFORMATION

5.1 NSWCCD will provide substrates of 1’ x 1’ x ¼” plate that contain 3” x 3” panels fixated within the 1’ x 1’ plate (See Figure 1).

Figure 1 Substrate Plates

5.2 Quantities of each substrate plate and specimen coupon types within each are described below.

5.2.1 Water-Jetting Substrates

· Quantity of 10 HSLA 80, containing HSLA 80 panels

· Quantity of 10 HSLA 100, containing HSLA 100 panels

· Quantity of 10 5456 plate, containing 5456 panels

· Quantity of 10 5456 plate, containing 6082 panels

6.0 DELIVERABLES

· Kick-off phone conference to discuss timelines, schedules, facility requirements, and procedures

· Flexible working conditions that will allow NSWCCD and contractors to collaborate and perform measurements, make observations, and record data while work is being performed.

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