Polyisocyanurate foam (PIR)
Polyurethane is a closed cell rigid foam. AU&S supplies a variety of urethanes ranging from 35kg/m3 to 200kg/m3 in density. All AU&S urethane contains a special flame retardant additive.
Polyisocyanurate has similar properties to polyurethane, however it is specifically designed to operate at higher service temperatures than PUR. PIR can typically operate up to temperatures of 140° C, and has a higher fire resistance. AU&S stocks 45kg PIR, and this is traditionally used for the lagging of pipes carrying hot or cold liquid.
Polyisocyanurate has similar properties to polyurethane, however it is specifically designed to operate at higher service temperatures than PUR. PIR can typically operate up to temperatures of 140° C, and has a higher fire resistance. AU&S stocks 45kg PIR, and this is traditionally used for the lagging of pipes carrying hot or cold liquid.
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