J A Harrison have a dedicated PTFE as well as an engineered plastics facility, this is within our gasket department. From being used in Cryogenic temperatures -196˚C, to high temperature plastics that can work up to 280˚C. Machined at our Manchester site within our CNC machining department. Therefore, J A Harrison provide a broad range of products to an ever increasing number of industries. Engineered plastics are a group of materials that have better mechanical and thermal properties than commodity plastics. They also have many benefits to offer, these include, good mechanical characteristics, effective wear, ease of processing and effective chemical resistance, making them a very versatile product.