B&Q - Rigid Duct Intumescent SealantWhite 310Ml

Domus

DDSEAL sealant is a waterborne one-part fire-resistant and acoustic rated joint sealant which provides a firm, yet flexible, seal to joints in a wide variety of fire-rated structures where fire resistance up to four hours is required. Its special intumescent properties cause the sealant to swell up and char in the presence of heat, preventing the spread of smoke and fire through the joint.DDSEAL conforms to the following standards:Fire PerformanceBS 476:Part 20:1987.BS EN 13666-3 with additional guidelines from BS EN 1366-4Acoustic Performance:Tested in accordance with BS EN ISO 140-3:1995Sealant Classification ISO 11600 Classification:F-12.5-P.