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Everbuild Pyro Mate Firesil Everbuild PRYWE Pyro Mate Silicone is a neutral cure elastic silicone sealant which conforms to BS 476 Part 20 EN1366 4 2006 for fire retardancy and has a fire rating of up to 4 hours in certain joint configurations Acoustic rated to BS EN ISO 140 3 tested for air permeability to EN13141 1 Ventilation for buildings Performance testing for components products for residential ventilation Conforms to ISO 11600 class F 25LM when tested to ISO 9047 8339 and 1056
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