Preprufe Tape and Preprufe CJ Tape are specially formulated two sided, reinforced pressure sensitive tapes. The bottom side of the tape has a highly aggressive pressure sensitive adhesive which is designed to adhere to penetrations, protrusions and Grace waterproofing membranes and accessories. The top side of the tape has a pressure sensitive adhesive, a weather resistant protective coating an a release liner. The specially developed Preprufe adhesive layers work together to form a continuous and integral seal to the structure. Concrete is cast directly against the top adhesive side of the tape.

Preprufe CJ Tape HC Grade is used in Hot Climates (minimum 50 °F (10 °C).