List of featured suppliers of INTUMESCENT COATINGS BS 476 Parts 20/21 on Building Products Index
Intumescent coatings are materials that expand in size when exposed to high temperatures or flames. They are commonly used as fire protection for structural steel, and help to prevent the spread of fire by increasing the time it takes for the steel to reach its critical temperature. BS 476 parts 20/21 refer to the standardized fire tests used to measure the performance of intumescent coatings.