Bostik Premium grade Bituminous Waterproofer For Roofing 

2.5L Tin

Premium-grade, solvent-based waterproofer for use on all common roofing materials

Product overview:

Bostik Bituminous Waterproofer for Roofs is a premium grade, solvent-based bituminous waterproofer for use on all common roofing materials. It can be applied onto existing roofs or mastic asphalt, roofing felt, corrugated iron, fibre/cement, slates, lead, copper and zinc.

It dries to form a tough, black waterproof coating and can be used as a water and moisture barrier or as a protection for metal.