Industrial Rubber manufacture conical sponge washers and doughnut washers in the United Kingdom. These products and components are primarily utilized for sealing applications in sanitation and plumbing industries creating a water tight seal between toilet cisterns and pans. Sponge rubber, as a material, possesses remarkable versatility, toughness, and longevity, making it an ideal choice. Our sponge range includes various grades and polymers, such as Natural rubber, Neoprene, and EPDM.
Compression moulding is an efficient way of moulding Sponge rubber products. The rubber compound used differs from standard rubber compounds as it includes a blowing agent. These blowing agents release gas, usually nitrogen or carbon dioxide, when heated. During the moulding process, the generated gas causes the uncured rubber to blow and as the polymer vulcanises it encase the gas, resulting in the formation of cells. The compression moulding process occurs at lower pressures and temperatures than traditional compression moulding. Depending on the manufacturing process, parts are either de-moulded while the tool is still hot or left to cool before de-moulding.