Proline Vapor Barrier Tape is a smooth-surface, 7.5 mil tape.
This white vapor barrier tape’s adhesive is made with a synthetic rubber compound that provides excellent bonding in low-temperature applications. With easy-tear edges and no release paper, this polyethylene pressure-sensitive tape is easy to use on the job site.
It offers a very high adhesive strength to seal vapor barrier seams. Overlap the Barrier-Bac vapor barrier at least 6 inches, then apply Vapor Barrier Tape centered over the overlap joint to effectively keep moisture out of the foundation.