seals, engineering plastics, expansion joints or bellows or connectors, pharmaceutical hoses or tubing, mechanical seals, silicone products, silicone tubing, valve seats, chemical resistant coatings, shaft sealing devices, polytetrafluoroethylene (ptfe) expansion joints, elastomers (64706-29-2) available from j. h. swartz & associates based in ambler, pa. click the links below to visit our website or contact us via our profile page.