Sponge rubber is actually a polymer made up of liquid monomers then polymerized. The degree of polymerization (DP) from the sponge rubber is controlled by the sort, quantity, and temperature from the monomers used to generate the polymer. Neoprene is often a artificial rubber well known for its amazing longevity https://rubberfoamsheets38159.vblogetin.com/39368007/water-proof-rubber-foam-fundamentals-explained