Thick sectioned, conformable, hydro-expansive waterstop for preventing saline and brackish water entry through joints in concrete substructures

Product Description

A conformable, swellable polymer/butyl rubber waterstop strip that expands in contact with saline and brackish water. When fully encapsulated by poured concrete, the expansive forces form a seal against concrete faces. The seal resists hydrostatic pressure, stopping water from entering sub-structures.

ADCOR® 500T is a unique product that has been specifically developed to provide higher performance than conventional bentonite or swellable rubber waterstops. Superior performance arises from:

  • controlled, reproducible, volumetric expansion
  • cohesive strength maintained after volumetric expansion
  • malleable and plastic, enabling easy application to a variety of concrete profiles.

Product Advantages

  • Controlled volumetric expansion - reduces risk of concrete spalling.
  • Conformable – can be installed onto a variety of irregular substrates.
  • Retains cohesive strength at both original and expanded volume.
  • No need for protective steel mesh.
  • Resists at least 6 bar (87 psi) hydrostatic pressure.
  • Volumetric expansion over 140% in 8% salted water.
  • Simple overlap jointing on site.
  • Reproducible swell after wet – dry cycling.
  • Unaffected by freeze/thaw cycling.


  • Horizontal and vertical construction joints in concrete structures
  • Casting new concrete against existing
  • Floor slabs cast against diaphragm retaining walls, steel sheet piles and secant pile walls.
  • Joints between floor slabs and pile caps
  • Pipe penetrations through floors and walls

System Components

¾ x 1 in waterstop strip, supplied in 16 ft rolls.

ADCOR® 500T 16 foot rolls
6 rolls/carton
30 cartons/pallet
pallet weight 1545 lbs. | North America customer service: 1-877-4AD-MIX (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.

ADCOR is a trademark, 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., 62 Whittemore Avenue, Cambridge, MA 02140 USA.

In Canada, 294 Clements Road, West, Ajax, Ontario, Canada L1S 3C6.

Ce document est à jour seulement à la date de la dernière mise à jour indiquée ci-dessous et n'est valide que pour une utilisation au Canada. Il est important que vous consultiez toujours les informations actuellement disponibles sur l'URL ci-dessous pour fournir les informations les plus récentes sur le produit au moment de l'utilisation. Des documents supplémentaires tels que les manuels de l'entrepreneur, les bulletins techniques, les dessins détaillés et les recommandations détaillées ainsi que d'autres documents pertinents sont également disponibles sur Les informations trouvées sur d'autres sites Web ne doivent pas être utilisées, car elles peuvent ne pas être à jour ou applicables aux conditions de votre site et nous déclinons toute responsabilité quant à leur contenu. S'il y a des conflits ou si vous avez besoin de plus d'informations, veuillez contacter le service client de GCP.

Last Updated: 2018-12-12