Reinforced pressure sensitive tape incorporating PREPRUFE® coating for continuous concrete adhesion at taped edges and details.

Product Description

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 GCP waterproofing membranes and accessories. The top side of the tape has a pressure sensitive adhesive, a weather resistant protective coating an a release liner. Concrete is cast directly against the top adhesive side of the tape. The specially developed Preprufe adhesive layers work together to form a continuous and integral seal to the structure.

Preprufe Tape is available in Low Temperature and Hot Climate Grades as follows:

  • Preprufe Tape LT - for temperatures between -5°C and +30°C.
  • Preprufe Tape HC - for use in Hot Climates minimum 10°C.


Preprufe Tape is a 100 mm wide tape used in detail areas including end laps, penetrations and various tie-ins.

It is also used to patch damaged areas in the Preprufe membranes.


Dimenions (Nominal) Preprufe Tape (HC or LT)
Roll Size 100 mm x 15 m
Roll Weight 2 kg


Wipe substrates to receive Preprufe Tape 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 onto the tape.

Use heavy hand pressure or a hand roller to maximize adhesion. Remove the release liner during application. Ensure the plastic release liner is removed from all areas of Preprufe Tape. It is recommended that concrete be poured within 56 days (42 days in hot climates)

of application of the tape. Concrete must be placed carefully and consolidated properly to avoid damage to the membrane. Never use a sharp object to consolidate the concrete. Provide temporary protection from concrete over splash for areas of the tape that are adjacent to a concrete pour. | United Kingdom customer service: +44 (0) 1480 478421

This document is only current as of the last updated date stated below and is valid only for use in the United Kingdom. It is important that you always refer to the currently available information at the URL below to provide the most current product information at the time of use. Additional literature such as Contractor Manuals, Technical Bulletins, Detail Drawings and detailing recommendations and other relevant documents are also available on Information found on other websites must not be relied upon, as they may not be up-to-date or applicable to the conditions in your location and we do not accept any responsibility for their content. If there are any conflicts or if you need more information, please contact GCP Customer Service.

Last Updated: 2021-02-05