COATED THERMOWOOD AND REACTION TO FIRE CLASSIFICATION
Wood products used in construction typically have to meet at least D-s2, d0 reaction to fire classification according to EN 13501-1. Coating wood with paints, varnishes and other coatings always affects the reaction to fire properties of treated wood.
Manufacturers, distributors and end users of cladding and other wooden construction products should always ensure the appropriate reaction to fire behaviour of their coated wood products.
NT THERMO BLACK is a bio-based wood stain classified for thermally modified wood, achieving class D-s1, d0 according to EN 13501-1.
OPAQUE FLAME RETARDANT WOOD STAIN
The waterborne, bio-based and certified NT THERMO BLACK flame retardant enables industrial Euroclass D-s1, d0 compliant fire protection treatment of thermo spruce cladding. The opaque matt smooth black satin finish highlights the natural texture of thermowood.
The flame retardant is absorbed in the wood, enabling best-in-class durability of reaction to fire performance in normal conditions in exterior use.
