Burnblock® Index
The sustainable, natural fire-retardant solution for wood products.
Fully Tested & Accredited Natural Fire Retardant Treatment
100% natural. 100% biodegradable. VOC emission free. Toxic-free. pH-neutral. Non-corrosive.
What is Burnblock®?
Burnblock® is a non-toxic, water-based product, which makes it very easy to handle and extremely flexible to use in a wide variety of materials and manufacturing processes.
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How Does Burnblock® Work?
Burnblock® effectively prevents oxygen from reaching the treated timber - No oxygen. No fire.
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Burnblock with WJ FireWright
Burnblock® is a pressure-impregnation fire-retardant treatment that elevates timber to Euroclass B (B‑s1,d0)—the second-highest European fire rating. This makes it ideal for:
- Exterior and interior timber cladding
- Façade panels on commercial, residential, and public buildings
- Feature walls, soffits, and other visible timber elements
Burnblock® slows ignition, limits flame spread, and reduces smoke, while maintaining timber’s natural texture and finish, enabling architects to realise their design vision safely and sustainably.
