Indispensable in the world of fashion accessories and centrifugal casting. It does not alter the characteristics of the model! This special product is specially designed to coat resins before rubberizing. Excellent for protecting metal models before rubberizing. Create an invisible film of some nanometer on the object. At the moment of vulcanization it prevents the molecules contained in the silicone from joining those contained in the "master" in metal (gold, silver, brass, bronze or zama).