Introduction
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
Data Sheet Safety Data Sheet Application Guide VOC Emission Certificate
09 96 46 Intumescent Painting
Testing
| 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 |
| Wood | ASTM 2768 | Pass | 20 | 13 | 80 |
| 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 dylan@flameseal.com.