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Flame Seal 84 (FS84)

Flame Seal 84 (FS84)

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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 30 minutes 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.

Sold in 5 Gallon Containers


Product Test Standard Result Wet Mils Coverage (Per Gallon)
FS84 ASTM E 84 Flame Spread: 0                 Smoke Development: 20 9 180 sq. ft
FS84 ASTM 2768 Pass 20 80 sq. ft
FS84 CAN/ULC S102 Flame Spread: 0                 Smoke Development: 50 9 180 sq. ft
FS84 +Top-Coat WUI (Wildland Urban Interface) Pass 20

80 sq. ft

Product Specifications

Type: Liquid

Color: White

Total Solids 65%

Weight Per Gallon: 12.5 lbs

Specific Gravity: 1.30-1.40

ph: 7.5-8.5

Shelf-Life: 1 year (unopened)