PART 2
PRODUCTS
2.1
ROOF JOINT SEALANT
Industrial grade, two component, minimum 95 percent solids by volume,
polysulfide type caulking material that has a minimum history of 10 years
acceptable service in fuel tanks. Sealant shall be compatible with the
epoxy primer and suitable for direct application to prepared steel
surfaces. Sealant shall contain no more than 0.06 percent by weight Lead ,
no more than 0.06 percent by weight Cadmium, and no more than 0.00 percent
by weight Chromium.
2.2
COATING SYSTEM
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NOTE: Include bracketed text for new construction
only.
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Alternate systems or products will not be considered. All primer and
intermediate coat materials shall be supplied by one supplier. [The entire
coating system is intended to be applied in the field. Alternatively,
surface preparation may be accomplished in the shop, following all
temperature, humidity, and testing requirements listed herein, followed by
an application of a hold-primer. Upon completion of field fabrication, all
shop-applied coatings shall be removed, surfaces prepared to SSPC SP 5, and
the specified coating system applied. Adjust all shop preparation to avoid
conflicts with final surface preparation requirements.]
2.2.1
Epoxy Primer and Intermediate Coats
The epoxy coating materials shall be approved by the Naval Sea Systems
Command and listed on their current Qualified Products List (QPL) for the
specified materials.
2.2.1.1
Epoxy Primer Coat
Epoxy polyamide, MIL-DTL-24441/29 (Formula 150, Type IV, Green).
2.2.1.2
Epoxy Intermediate Coat
Epoxy polyamide, MIL-DTL-24441/31 (Formula 152, Type IV, White (Tinted)).
Tint to approximately FED-STD-595 color number 27778 parchment using
pigment dispersions prepared for epoxy paint tinting. Manufacturer shall
tint material and appropriately label. All other requirements of this
Military Specification apply.
2.2.2
Fluoropolyurethane Topcoat
Formulate fluoropolyurethane topcoat as specified in Table II - Modified
PTFE-Pigmented Fluoropolyurethane topcoat.
2.3
COATING SAMPLE COLLECTION AND SHIPPING KIT
Provide a kit that contains one liter quart can for the base of each
coating material, an appropriately sized can for each activator, dipping
cups for each component to be sampled, a shipping box sized for the samples
to to be shipped, and packing material. Mark cans for the appropriate
SECTION 09970
Page 17
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