PREPRUFE® Detail Tape Data Sheet

Two Sided Self-Adhesive Tape

Product Description

PREPRUFE® Detail Tape is a specially formulated, two-sided, highly aggressive tape. It is a 2 in (50 mm) wide x 50 ft (15 m) long self-adhesive tape with a release liner.

PREPRUFE® Detail Tape is provided in Low Temperature and Hot Climate Grades as follows:

  • PREPRUFE® Detail Tape LT Grade — for temperatures between 25°F (-4°C) and 86°F (+30°C)
  • PREPRUFE® Detail Tape HC Grade — for use in Hot Climates (minimum 50°F (+10°C))


PREPRUFE® Detail Tape is ideally suited for the following uses:

  • As a detailing accessory to the PREPRUFE® and PREPRUFE® SCS Systems
  • Adhering HYDRODUCT® drainage composites and insulation boards to waterproofing membranes


Surface Preparation

All surfaces must be clean, dry and free from dirt, grease, oil, dust or other contaminants.


PREPRUFE® Detail Tape must be rolled firmly into place prior to removing the release liner. Ensure the release liner is then removed prior to adhering the next piece of membrane to the PREPRUFE® Detail Tape, which then must be rolled into place as well over the PREPRUFE® Detail Tape. Refer to applicable system detail drawings at

HYDRODUCT® drainage composites

Where HYDRODUCT® drainage composites are placed horizontally from rolls onto a wall, a continuous strip of PREPRUFE® Detail Tape near the top and another strip near the bottom is recommended. If the drainage composite is cut and applied vertically in 6 to 8 ft (1.8 to 2.4 m) lengths, a strip is recommended near the top, another near the middle and a third near the bottom.

On decks, a strip of tape is recommended at approximately 10 ft (3 m) intervals, or more frequently in the event of high wind. Unroll the tape and adhere to the waterproofing membrane. Leave the release sheet on the tape until just before applying the drainage composite. The tape and release liner may be cut with a utility knife. Peel the release liner and apply the drainage composite. Press the composite firmly to ensure good contact. For deck applications, the tape may be applied to the back of the drainage composite rather than to the waterproofing membrane, if it is more convenient.

Polystyrene protection board and insulation

On walls, apply a strip of tape near the top and bottom edge of the board or insulation. If the board is applied vertically in lengths of 8 ft (2.4m) or more, apply a third strip of tape in the middle of the board or insulation. Press panel firmly over the tape to ensure a good bond. PREPRUFE® Detail Tape may also be used to adhere polystyrene board or insulation in deck applications in the event of high winds.


Roll size 2 in. x 50ft. (50 mm x 15m)
Packaging 16 rolls/carton | North America Customer Service: +1 (877) 423 6491

We hope the information here will be helpful. It is based on data and knowledge considered to be true and accurate, and is offered for consideration, investigation and verification by the user, but we do not warrant the results to be obtained. Please read all statements, recommendations, and suggestions in conjunction with our conditions of sale, which apply to all goods supplied by us. No statement, recommendation, or suggestion is intended for any use that would infringe any patent, copyright, or other third party right.

HYDRODUCT and PREPRUFE are trademarks, which may be registered in the United States and/or other countries, of GCP Applied Technologies Inc. This trademark list has been compiled using available published information as of the publication date and may not accurately reflect current trademark ownership or status.

© Copyright 2018 GCP Applied Technologies Inc. All rights reserved.

GCP Applied Technologies Inc., 2325 Lakeview Parkway, Suite 475, Alpharetta, GA 30009, USA
GCP Canada, Inc., 294 Clements Road, West, Ajax, Ontario, Canada L1S 3C6
This document is only current as of the last updated date stated below and is valid only for use in the United States. 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: 2024-06-21