PipeBloc®PWP Wraps are designed and tested to seal service penetrations in apertures containing combustible plastic pipes.
PipeBloc®PWP has been developed utilizing specialist intumescent technologies which result in the wrap expanding in the presence of heat or fire. This expansion is fast acting and up to 25 times. The expanding collar fills the void left by combusting materials and remains in place, exerting a pressure on the surrounding substrate upholding the fire resistance of the compartment
Certification & Testing