Tarecpir is a thermoset material. When subjected to fire, its outer surface forms a strong carbonaceous layer that retards further flame spread and penetration. Unlike thermoplastic materials, Tarecpir does not melt or produce flaming droplets when exposed to fire. Tarecpir satisfies the requirements of major industrial specifications such as a Flame Spread Index (FSI) of 25 or less in accordance with ASTM E84.
Tarecpir can achieve, in combination with a foil, reaction to fire classes up to C/CL-S2, d0 in accordance with EN 13501-1.
In addition to the above, Tarecpir achieves excellent fire classifications against other methods widely used and recognized within the industry, such as IMO Resolution MSC 307(88), NF P92-510 and GOST 30244.