On the contrary, sponge rubber usually begins with expandable rubber varieties like EPDM or neoprene. The rubber compound is then supplemented using a chemical blowing agent, which, on heating, decomposes and releases gases. This process brings about the expansion on the rubber and the development of the sponge-like construction. When https://rubberfoamsheets15937.jts-blog.com/32804902/not-known-details-about-rubber-foam-versus-sponge-rubber