Applying Flame Retardant Coatings on Wood

Wood fire proofing

It is not easy to find a fire retardant coating for wood. In construction projects wood is a popular substrate incorporated in residential as well as commercial projects. Most commonly wood may be applied in the construction of major compositional structures like walls, ceilings, and floors, as well as less central formations such as doors, frames, and cladding. However, wood is a combustible material, and requires extra passive fire protective precautions.

Wood is a combustible material, and a natural propagator for flame spread. One of the main goals of building and fire codes is to limit that spread in order to protect buildings if they are ever in close proximity to an active fire. Without proper fire protection a series of wooden panel structures constructed close to each other are likely to spread fire from one building to the next. It is vitally important to protect wooden panel structures with an approved fire retardant system to cut off flame spread and avoid catastrophe.

Flame retardant for wood in action
Fire retardant paint for wood

FR Clear provides a reliable passive fire protection option for wooden elements where an E84 Class A flame spread rating is required. Not only is this coating clear and odorless making it ideal for maintaining the original qualities of the substrate, but it is effective in slowing the flame spread as well as reducing smoke production under the heat of a fire. This type of treatment provides high heat transfer protection, meaning it will provide protection against intense heat stopping the substrate from igniting.

OUR SOLUTION
Clear fire retardant coatings/spray Clear fire retardant coatings/spray
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$190.00
UL Classified
Faq
What is the coverage rate of FR Clear?
The coverage rate of FR Clear is approximately 300-350 sq ft per gallon.

  • Coverage rate: 300-350 sq ft/gallon.
  • Application method: Sprayer application is recommended to maximize coverage.
The final coverage rate can vary depending on the substrate's porosity and the application method used. Applying the product with a sprayer ensures an even coat and helps achieve the optimal coverage rate.

For detailed information on application methods and product coverage, please refer to the FR Clear product page.
Can FR Clear be used outside?
FR Clear is primarily designed for interior applications, we do not recommend it for exterior applications as it is a water soluble product.

This product is not tested for exterior applications at this time. Outdoor use may be possible under certain protected conditions at the discretion of your AHJ, but UV exposure and weathering can reduce performance over time. For exterior applications, additional UV and weather protection topcoats may be required. Unprotected exterior applications should be considered temporary and may require periodic reapplication dependent upon exposure to weather.
Can I apply FR Clear over an already painted substrate?
No, we do not recommend applying FR Clear over a painted substrate.

  • Not recommended: Application over painted or sealed surfaces.
  • Why: The product must be absorbed by the material to be effective.
FR Clear works by penetrating the substrate it is applied to, and a painted or sealed surface will prevent this absorption. For the product to provide its fire-retardant properties, it must be applied to raw, absorbent materials like untreated wood and porous fabrics.

For more on substrate requirements, please see the FR Clear product page.
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