Flame Seal 84 (FS84) is a water-based Intumescent paint that can be applied to most substrates including, lumber, plywood, OSB, and Gypsum. FS84 is fully tested and has a rating ranging from Class A to 2 hours to meet building codes domestically, internationally, and for the Wildfire Urban Interface. When Flame Seal 84 is exposed to fire or extreme heat, a protective layer of Carbon Foam develops and prevents the fire and heat from transferring to the substrate. FS84 is a low VOC fire retardant paint with a smooth white architectural grade finish. This product can be paired a primer and a top-coat. For best application Flame Seal recommends using an airless sprayer, please see application guide for more information.
Flame Seal 84 Documentation
CSI Master Specifications
|Substrate||Test Standard||Result||WFT||DFT||Coverage Rate sq ft/gal|
|Wood||ASTM E 84||Class A||9||6||180|
|Wood||CAN/ULC S102||Class A||9||6||180|
|Gypsum||ASTM E119||2 Hours||60||40||27|
|Gypsum||CAN/ULC S101||2 Hours||60||40||27|
Primer & Top Coating
Primers and top coats may be required in high humidty applications or when a desired color is needed. The use of primers and top coats have been tested to the ASTM E-84 and ASTM 2768. Testing data shows that the use of top coats have no affect on the burn performance of Flame Seal 84. For a list of recommended primers and top coats please email email@example.com.