PTFE is a partially crystalline thermoplastic characterised by a very high chemical and thermal resistance. PTFE has the highest resistance to chemicals of all plastics and can be used for almost any application.It has a slightly limited resistance to molten alkaline metals, to elementary fluorine and to certain halogen materials. The material undergoes no changes on exposure to ageing, light and ozone. The water absorption rate is less than 0.01 %.
Teflon O Rings are used wherever the chemical and thermal resistanceof the normal elastomer O-Rings is no longer sufficient. These are primarily applications in the chemical industry, foodstuffs industry, pharmaceuticals and medical technology. Teflon O-Rings are used only as static seals, e.g. on flange connections, on covers, etc.