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Wood Seal A


Wood Seal A


Wood Seal A™ is an application ready, water based fire retardant designed for treatment of raw wood. Wood Seal A™ is mix of proprietary ingredients, which forms a slight intumescent foam layer and carbon char when the treated wood is exposed to fire.

Once the carbon char is formed there will be minimal flame propagation, smoke evolution or afterglow. The product is designed for interior applications. This may be used on exterior applications with a Flame Seal approved top coat.


Total Solids 40 - 45%
Weight per Gallon 9.8 - 10.2 lbs
Specific Gravity 1.18 - 1.23
ph 2.0 - 3.0
VOCs <1% (<11g/L)


Wood Seal A™ can be applied via spray, brush, dipping or roll / curtain coater. The product must penetrate the wood and be allowed to thoroughly dry to be effective. The coverage rate is 150 to 350 ft2 per gallon. Wood Seal A™’s Class A rating was achieved on Douglas Fir. Other wood of a similar, or lesser inherent fire spread rating, and penetrability, when properly treated should meet Class A requirements.

Excess product should be removed before drying.

It is recommended that a small sample of the wood be tested for uptake and penetration prior to application. For use with a dip chamber or any machine application the excess material should be removed before drying.

This product may be used on most types of wood as long as penetration occurs. The product may be stained with a compatible stain or top coat after treatment. However, many stains and top coats are flammable and can adversely affect the flammability of the treated substrate.


·     Temperature Range: 40 - 90 °F

·     One year shelf life from manufacture date.


Wood Seal A™ is a liquid available various packaging sizes from a 1 gallon pail to bulk containers


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