PipeBloc PWP Wraps are designed and tested to seal service penetration apertures containing plastic pipes using thermoplastic composites based on graphite intumescent technology. They have been developed to provide a high volume expansion and pressure seal during a fire.
They are compatible with polypropylene (PP), polyethylene (PE) and polyvinylchloride (PVC) pipes. PipeBloc PWP wraps are tested with end capping configurations that cover U/C & C/C pipes. PipeBloc PWP wrap is used around combustible pipes to form a penetration seal to reinstate the fire resistance performance of wall and floor constructions.