On the contrary, sponge rubber routinely starts with expandable rubber styles like EPDM or neoprene. The rubber compound is then supplemented using a chemical blowing agent, which, on heating, decomposes and releases gases. This process causes the growth with the rubber as well as the development of a sponge-like composition. https://water-proof-rubber-foam18406.tkzblog.com/33467354/5-essential-elements-for-foam-rubber-manufacturer