Polyprime SB is a quick drying solvent based low viscosity bitumen primer. It is used as a primer coat on masonry and concrete substrates to improve the adhesion of bitumen based membranes and coatings. Polyprime SB is low in viscosity, which allows it to penetrate into the concrete pores and improve the adhesion between the membrane and the concrete surface. In addition to that, the primer also acts as a binder for the dust particles which gets accumulated on the concrete surface even after cleaning.
Improves the adhesion between bitumen based sheet membranes and coatings.
Cold applied, does not require heating.
Binder for dust particles.
As a curing compound on freshly cast concrete.
Excellent barrier against chloride and sulphate ion ingress and carbon dioxide diffusion.
Conforms to the following standards:
ASTM D 41 - Asphalt primer for roofing, damp proofing and waterproofing
BS 3416, Type A Class C - Bitumen based coatings for cold application, suitable for use in contact with potable water.
Polyprime SB is used as a primer and sealer coat prior to the application of bitumen based waterproofing membranes and coatings. This can also be used as a curing compound on freshly cast concrete.