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Santopreneâ¢ (TPV) is a thermoplastic vulcanizate. Santoprene is fully dynamically vulcanized ethylene propylene diene monomer (EPDM) rubber in a thermoplastic matrix of polypropylene (PP). It looks, feels and behaves like rubber but, due to the PP content, offers simple, flexible part design and manufacturing.
How Neoprene is Made. Neoprene is often referred to as 'rubber' but it is actually plastic. It begins as a powder called polychloroprene. To this base are added other ingredients that provide elasticity, foaming agents, cell size, color, adhesion, bulk, plus other properties.This mixture is made into a dough which is put into a heat press.NSIDE Neoprene. Neoprene is a modern miracle! There is no other fabric with all these qualities: it stretches, it's waterproof, it can be stitched or glued, it comes in a multitude of colors, it provides an insulating layer in wet environments, it's abrasion resistant and it is relatively inexpensive.