Bostik Penetration Primer for Roofs is a general purpose, highly penetrative, thin bituminous primer.It is used for priming bitumen roofing felt, concrete roofs and floors, cementitious screeds/renders, mastic asphalt, weathered corrugated iron and steel prior to the application of bituminous coatings.
Apply before a bituminous coating.
Highly penetrative, thin bituminous primer.
For all common roof surfaces.
Spray or brush on.
