Description
Pyrostrip 500P and 500PSA graphite seals are extremely effective in a wide variety of applications, including door edges, glazing in steel and timber partitions, pipe closure devices, air transfer grilles, aviation bulkheads and linear gaps.
In a situation where fire arises, the intumescent expands to many times its original volume and develops a positive pressure when restricted by two substrates.
Because of its chemical composition, it also has a very high melting point.
Tested to BS 476: Part 22: 1987 and EN 1634-3: 2004. Smoke tested in
accordance with BS476: Part 31: 1987.