Rosco - Flamex PA - Paint Additive
Flamex PA is a clear, unpigmented additive for creating a flame retardant paint layer. Add one full jar of Flamex PA to a US gallon (3.79L) of water based paint to make your paint coating flame retardant.
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Flamex PA is compatible in most latex or vinyl acrylic paints but always test with your specific paint choice. Do not use Flamex PA with metallic paints as the metal pigments may react and tarnish or corrode. Flamex PA does NOT alter the flammability of the substrate being painted but only adds a retardant treatment that slows the spread of fire along the surface.
Using Flamex PA
Rosco Flamex PA has been pre-measured and should be added to a single US Gallon (3.79L) of paint. Once combined, the paint/Flamex mixture can be diluted as desired but the dry paint film must be no less than 4 mil in thickness. The effectiveness of a fire retardant barrier is dependent on both the fire retardant additive and the thickness of the coating. Flamex PA is not intended to be used in place of other Flamex products. Where possible, always treat the substrate material using the appropriate Flamex product.
Note: When using Flamex PA in Rosco Supersaturated paint add one 8 oz. jar to one quart of undiluted Supersaturated and then dilute this mixture at least 1:1 with water. Mix thoroughly before using.
8 oz. of Flamex PA mixed into one gallon of paint will treat approximately 300 square feet (28 square meters) of material as per paint manufacturer's guidelines.
- Apply treated paint by brush, roller or sprayer as per the paint manufacturer's instructions. Regardless of the method of application, it is vital that a complete paint film is formed and that the dry film thickness of the finished coating is not less than 4 mil. Paint films that are incomplete, or are too thin, will not provide a barrier against the spread of fire.
Certification and Testing
Flamex PA has been approved for use by the California and New York City Fire Marshall and has been tested according to ASTM E84 Class A.
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