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Everlastic® Masonry Anchor Gaskets

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Self Stick, closed cell, Neoprene Gasket perforated & cut to dimensions of anchor back plate.


Custom Fabricated to match anchor size.  Self stick, pressure sensitive adhesive allows simple and easy installation.  Economical, Flexible, compressible, Resilient, Non-Absorbent, Closed Cell Rubber.

Available Sizes

Nominal 1/8" Thick, supplied in panels perforated to size of anchor.  Availability varies with size & quantity.

Typical Physical Properties


Property Typical Values
Polymer Base CR/EPDM/SBR
Density (nominal) 7 +/-2 PCF
Compression/Deflection @ 25% 2 to 5 psi.
Ultimate Tensile Strength (Typical) 100 psi.
Elongation (Typical) 175%
Water Absorption (by weight) 5% Max.
Accelerated Aging (7 days @ 158°F)

Appearance Change

Flexibility (180° bend w/out cracking)

Change in Compression / Deflection




+/- 30%

Flame Resistance Pass
Odor No objectionable odor
K Factor 0.30
Service Temperature



High Intermittent





Please contact us by;  
Phone:  Toll Free 800-521-9594    or      248-643-6400
Fax: 248-643-7117
Email: Wilpro@williamsproducts.net
Rubber, Neoprene, Foam, Gasket, Seal, Construction. To the best of our knowledge this published information is accurate, however, to determine suitability of material/product for a specific application is the user's responsibility.  Williams Products, Inc. shall not be liable for any loss or damage resulting from inappropriate usage.
Everlastic® is a registered trademark of Williams Products. All other products mentioned are registered trademarks or trademarks of their respective companies.
Contact Williams Products: Phone: 800-521-9594 or 248-643-6400 or Email: Wilpro@williamsproducts.net  Contact Information