On the contrary, sponge rubber commonly begins with expandable rubber forms like EPDM or neoprene. The rubber compound is then supplemented using a chemical blowing agent, which, upon heating, decomposes and releases gases. This method results in the enlargement in the rubber as well as formation of a sponge-like composition. https://fernandowaywu.blogerus.com/56007741/5-simple-statements-about-huamei-rubber-foam-explained