Many users of sponge rubber products for sealing are unaware that UL guidelines dictate that when adhesive is applied to sponge rubber the chemistry has been changed. Essentially, this creates a new product which must pass specific tests to be added to a list of approved UL materials.
To help solve this issue, CGR Products has three UL listed closed cell sponge and adhesive combinations that are listed to UL JMLU2 standards and are suitable for UL50E applications.
In this guide, we will break down our three combinations to help you identify the best solution for your application.
8002/702P
8002/702P is considered our “high-end” combination utilizing greater temperature ratings and high-performance adhesive. 8002 sponge is pure EPDM sponge. It has 2A2 ASTM designation with a density of 9 +/-2. The 702P adhesive is a heavy mass 7mil (liner side) double coated acrylic tape.
5031/9824
5031/9824 is considered our “mid-grade”. 5031 sponge is a blend of EPDM/CR/SBR. It has 2A1 ASTM designation with a density of 6 +/-2. The 9824 adhesive is 3mil (liner side) high strength double coated acrylic tape.
DK1111/9816
DK1111/9816 is considered our “general purpose” combination and also utilizes a rubber based adhesive. DK1111 sponge is a blend of EPDM and Neoprene. It has 2C1 ASTM designation with a density of 5. The 9816 adhesive is 3.5mil (liner side) double coated high tack rubber-based tape.
UL Materials from CGR Products
These UL listed closed cell sponge with adhesive combinations are commonly used for sealing and gaskets in electrical enclosures, control panels, appliances, and many other applications. CGR Products offers lamination, slit to width, sheeting, and die cutting for all of your converting needs. Our UL listed Products are labeled and shipped with the Recognized Component Mark, 
For a further in-depth look at our UL listed Products, download our latest eBook by clicking here.