Each sponge silicone o-ring is individually inspected for fit and finish before leaving our vulcanizing shop.

Using the correct adhesives, presses, molds, vulcanizes at the correct temperature and cure times help vulcanize a sponge silicone O-ring to exceed stated specifications.

As shown in the image below, it is not recommended to excessively bend the sponge silicone o-ring as it is not intended to be bent in your application. Bending the o-ring creates a cantilever effect, which increases the tensile force on the outer edge of the o-ring, leading to joint damage.