TL-0006 — Chemical Compatibility with Vinyl Windows Technical Letter

VYCOR® Self-Adhered Flashings (VYCOR® Plus, VYCOR® V40, VYCOR® Aluminum, and VYCOR® PRO) are typically compatible with windows using vinyl (PVC) nailing flanges.

Although VYCOR® Plus, VYCOR® Aluminum and VYCOR® V40 may have an incompatibility with plasticized PVC, most vinyl nailing flanges are constructed of rigid PVC, which is compatible (see Figure-1). Some nailing flanges may appear to be flexible due to their thin gauge, but are in fact rigid PVC. These thinner nailing flanges are not generally plasticized and are therefore compatible with VYCOR® flashings. VYCOR® PRO is compatible with both plasticized and rigid PVC nailing flanges.

Examples of products composed of plasticized PVC include wire and cable products, door sweeps, bicycle tire inner tubes, flooring and shower curtains to name a few. Some arch/round shaped windows may use a plasticized PVC nailing flange (see Figure-2). Consult with the window manufacturer to determine if the nailing flange is constructed of plasticized PVC. | North America Customer Service: 1 877-4AD-MIX1 (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.

VYCOR 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., 2325 Lakeview Parkway, Suite 450, 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: 2022-05-06