Specially formulated primer for use with Bituthene membranes and GCP underlayments on green concrete or damp substrates.


BitutheneĀ® Primer B2 is a rubber-based primer in solvent specially formulated to provide good initial adhesion of Bituthene waterproofing membranes and GCP underlayments.

In addition, its patented formulation promotes the adhesion of Bituthene membranes to green concrete and damp surfaces.

The VOC (Volatile Organic Compound) content is 440 g/L and it meets the U.S. E.P.A. Volatile Organic Compound Emissions Standards for Architectural Coatings.

Architectural and industrial maintenance regulations limit the VOC content in products classified as architectural coatings. Refer to technical letters at gcpat.com for the most current list of allowable limits