On the contrary, sponge rubber regularly starts with expandable rubber kinds like EPDM or neoprene. The rubber compound is then supplemented which has a chemical blowing agent, which, upon heating, decomposes and releases gases. This method results in the enlargement from the rubber plus the formation of the sponge-like construction. https://donovanhwkzo.bligblogging.com/34269695/fascination-about-rubber-foam-sheets