Flame retardant

The respective fire safety regulations require wooden surfaces in public buildings, emergency exits, etc. to be flame-retardant. Rafters can be made flame-retardant by soaking with special salts in an aqueous solution. So-called flame-retardant salts can be applied to wall claddings and other such items. These lacquers are often water-soluble and do not provide great levelling and only very reluctantly drying coatings. Special SH or DD lacquers with corresponding test certificates are better. However, DIN 4102 1B specifies flame-retardant chipboard and wood materials for wood lacquer systems and coatings