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Ignifuge | Ignifuge | Revêtements intumescents

Shop fire retardant and intumescent coatings for interior walls, ceilings, trim, protected exterior wood and spray foam insulation. These paints slow flame spread on the surface they coat. They do not make a wall fireproof.

Which fire retardant coating is right for you?

Your project/need Best choice Why
Interior walls, ceilings and trim, white finish INSL-X FR-210 Flat latex intumescent paint, Class A under CAN/ULC S-102 and ASTM E84. Covers about 150 sq ft per 3.79 L
Interior wood or wallboard, in white or black Flame Control 20-20A Water-based interior intumescent paint, Class A. Flame Control lists 155 sq ft per gallon
Exterior wood that is protected from direct weather Exterior Guard Basecoat 20-20A For wood under siding or cladding. Needs a topcoat if it is the exposed surface
Spray foam insulation that needs a thermal barrier Flame Control 60-60A Intumescent thermal barrier coating made for spray polyurethane foam

Important: fire ratings depend on the tested substrate and the application rate. Apply at the full rate the manufacturer lists, and check with your local fire or building official before you buy.

Not sure which coating your project needs? Contact us and we'll help you find the right product.

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Fire Retardant Coatings FAQ

1What is intumescent paint?

Intumescent paint looks like ordinary paint. When it is exposed to heat or flame, it swells into an insulating foam or char layer that slows flame spread over the surface.

2What does Class A mean?

Class A is the best flame spread class in the ASTM E84 surface burning test, with a flame spread index of 0 to 25. INSL-X FR-210 lists a flame spread of 0 and smoke developed of 35. Flame Control 20-20A lists 5 and 40 on Douglas fir.

3What is CAN/ULC S-102?

It is the Canadian surface burning test, similar to ASTM E84. It rates how fast flame spreads across a coated surface and how much smoke it makes. INSL-X FR-210 is tested to CAN/ULC S-102 and ASTM E84.

4How much do I need, and why does the application rate matter?

Coverage is low compared to regular paint: INSL-X FR-210 covers about 150 sq ft per 3.79 L per coat, and Flame Control lists 150 to 155 sq ft per gallon for its 20-20A products. A 300 sq ft wall takes about 2 gallons per coat. A rating only applies at the full rate, so don't stretch it.

5Can I topcoat a fire retardant paint?

It depends on the product. INSL-X says a regular acrylic topcoat won't affect the FR-210 flame spread rating. Flame Control 20-20A needs no topcoat for most uses, and its maker suggests a Flame Control topcoat where you need extra washability. An exposed exterior basecoat must have a topcoat.

6Does fire retardant paint make a wall fireproof?

No. It slows flame spread on the coated surface. It does not replace fire-rated drywall or an hourly fire-resistance assembly. Ratings depend on the tested substrate and application rate, so check with your local fire or building official.