PREPRUFE® Tape is a specially formulated, two sided, reinforced, pressure-sensitive tape. The bottom side of the tape has a highly aggressive, pressure-sensitive adhesive which is designed to adhere to penetrations, protrusions and BITUTHENE® membranes. The top side has another layer of adhesive and a protective coating.
PREPRUFE® Tape is a specially formulated, two sided, reinforced, pressure-sensitive tape. The bottom side of the tape has a highly aggressive, pressure-sensitive adhesive which is designed to adhere to penetrations, protrusions and BITUTHENE® membranes. The top side has another layer of adhesive and a protective coating. The protective coating protects the tape from the weather and UV light for up to 30 days after application. A thin, flexible film is sandwiched between the two layers of pressuresensitive adhesive. The tape develops a continuous mechanical bond with the concrete that is cast against it.
PREPRUFE® Tape is supplied in rolls and is interwound with a silicone coated release liner.
PREPRUFE® Tape is used in detail areas including end laps, penetrations and various tie-ins. It is also used to patch damaged areas in the PREPRUFE® membranes. The tape is a critical component of the PREPRUFE® system since it is designed to develop a continuous mechanical bond to concrete that is cast against it.
| PREPRUFE TAPE LT* OR HC* | |
|---|---|
| Thickness (nominal)* | 0.7mm |
| Roll Size | 100mm x 15.0m |
| Roll Weight | 2kg |
*LT denotes temperature between –4ºC and +30ºC
*HC denotes temperature between +10ºC and +40ºC
*Nominal thickness refers to the thickness of the tape without release liner.
Apply PREPRUFE® Tape when ambient temperatures are -4˚C or above. Wipe PREPRUFE® membranes clean to remove any dirt, dust or moisture. Clean the surface of penetrations or protrusions with a wire brush to remove dirt, dust, rust and loose particles.
Unroll the tape and adhere the exposed pressure-sensitive adhesive surface to the membrane or penetration. The protective coating surface of the tape should face toward the concrete to be cast.
Use heavy hand pressure or a hand roller to maximise adhesion. Remove the release liner during application. Cast concrete or apply Shotcrete within 30 days of application of the tape.
