Claron manufacture Double and Single Acting Plastic Faced Composite Seals for both Piston and Rod applications. Standard Compounds include Bronze and Carbon Filled PTFE, UHMWPE and Polyurethane with energising elements available in various styles and Rubber compounds. Designs using combinations of these materials are available to suit standard and non-standard housing sizes. Our own specifically designed PTFE Compounds also include Carbon Fibre, Ceramic, Graphite and various Glass and MoS2 combinations , All products are manufactured in-house within the UK and marketed under the "Polyseal" trade name. For full range of standard products, see www.claron.co.uk/seals web site product listing