Polyelastomer Finish Coating System

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NOTE: For installations in MCAS Cherry Point and

MCB Camp LeJeune, including New River, specify

corrosion protection for all outside, and specific

inside HVAC equipment exposed to the weather.

Follow the guidance specified in the criteria NOTE

above.

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Provide either the polyelastomer finish coating system or the phenolic

finish coating system on the interior and the exterior surfaces of HVAC

heat exchanging equipment, The coating system shall not reduce the HVAC

equipment's performance rating.

Finish coating shall be applied at the premises of the HVAC equipment

manufacturer or at the premises of the coating manufacturer or his

authorized applicator. Provide finish coating in colors gray, or aluminum,

or ivory. All components of the special finish coating systems, including

primers and intermediate coats, shall be applied by immersion dip-coating

or spray-coating in accordance with coating manufacturer's written

procedures.

If special finish coatings are applied at the finish coating manufacturer's

(or his authorized applicator's) premises, the equipment to be finish

coated shall be transported to and from the finish coating manufacturer's

premises by the Contractor.

The finish-coating manufacturer shall be

responsible for necessary disassembly of the HVAC equipment and re-assembly

of final finish coated equipment.

Submit for approval a Certificate of Specification Compliance furnished by

the finish coating system manufacturer. Requirements for certificate

include:

a.

Name of firm that provided the finish coating system.

b.

Project title and Navy construction contract number.

c.

Listing of the pieces of equipment that were finish coated by

this firm.

d.

Certificate shall certify that the finish coating materials and

application procedures employed conform to the contract

specifications.

e.

Date of final inspection by this firm and printed name and

signature of the inspector.

f.

Printed name and signature of the officer of the firm that is

responsible for firm's certification program .

2.2.1

Polyelastomer Finish Coating System

2.2.1.1

Heat Exchanger Coil (Including Evaporator Coil) Surfaces

a.

Acrylic polymer resin primer:

0.025 mm (1 mil) minimum dry film

thickness.

b.

Polyelastomer resin top coating: 3 coats, 0.038 mm

(1.5 mils)

minimum total dry film thickness.

c.

In lieu of coating, provide copper tubes and copper fins

SECTION 15702N

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