FSi Silverseal® High Strength Compound is designed to reinstate the fire resistance through wall and floor constructions where apertures exist for the penetration of services. For penetrations seals, opening size and penetration service covered as per requirements of UL-EU-00924-CPR. Can be used in conjunction with other FSi products such as PipeBloc® Pipe Wraps and PipeBloc® Wrap Roll. Features High strength load bearing capabilities Prevention of air leakage Up to 4 hours of fire resistance Acoustic performance - up to 57dB achievable Provides a smoke seal Internal use Easy to mix 20kg bag Application Multi-service penetrations Walls and floors Blank openings Windows and doors Tested with a wide range of services, including plastic pipes, cables and insulated non-combustible pipes 6 x 20kg per m2 @ 100mm Testing Fire resistance tested to BS EN 1366-3: 2009 CE marked - ETA-20/1145 UKCA marked UL-EU accredited