TL-0005 - Curing Compounds and Form Release Agents Technical Letter

Curing Compounds

Curing compounds used on any concrete to be waterproofed with Bituthene® membrane or Procor® membrane must not contain wax, oil, silicone or pigment.

Acceptable types of curing compounds include:

  • Petroleum resin
  • Chlorinated rubber
  • Styrene butadiene
  • Acrylic

Sometimes surface hardeners may be referred to as curing compounds. Common surface hardeners include:

  • Sodium silicate
  • Zinc or magnesium fluorosilicate

Bituthene® waterproofing membrane may be used over these materials.

Form Release Agents

All non-transferring commercial form release agents, when applied in accordance with the manufacturer’s instructions, are acceptable. Diesel fuel or other types of petroleum oils can adversely impact adhesion of Bituthene® and Procor® Membranes if transferred to the concrete.

A test application or job mock-up would be recommended to ensure compatibility.

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This document is only current as of the last updated date stated below and is valid only for use in the Canada. 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 www.gcpat.com. 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: 2022-08-12

https://ca.gcpat.com/en/solutions/products/bituthene-post-applied-waterproofing/tl-0005-curing-compounds-and-form-release