On the contrary, sponge rubber routinely commences with expandable rubber forms like EPDM or neoprene. The rubber compound is then supplemented with a chemical blowing agent, which, upon heating, decomposes and releases gases. This process brings about the growth in the rubber along with the formation of the sponge-like construction. https://donovanspmjf.bloggadores.com/32876310/the-huamei-rubber-foam-diaries