DescriptionSikacryl 621 Fire Sikacryl 621 Fire is a fire resistant, phthalate-free acrylic sealant for interior joints and penetration sealing in walls and floors. Uses Restores the fire resistance performance of a floor or wall which incorporates penetration services or linear seals Can be combined with SikaSeal 623 Fire, Sikacryl 624 Fire, SikaSeal 626 Fire Board, SikaSeal 627 Fire Collar, SikaSeal 628 Fire Wrap and SikaSeal 629 Fire Wrap Characteristics / Advantages Can be combined with many other Sika passive fire protection products Provides acoustic insulation 1-part ready to use, easy to apply Up to 4 hours fire resistance
