Wood-Based Fire Retardant

Wood-Based Fire Retardant
An innovative wood-based fire-retardant coating could be applied to the wood in the form of a paint or stain.

The coating was developed by a team from VTT Technical Research using the patented HefCel process (High-Consistency Enzymatic Fibrillation of Cellulose), which results in a nanocellulose gel with ten times the solid content than could be accomplished using traditional methods. This gel’s nanocellulose content allows it to adhere naturally to the wood, forming an airtight seal that prevents oxygen from reaching the wood and drastically decreases its flammability.

Image: HefCel-coated wood (left) and untreated wood (right) after 30 seconds flame test.

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