PTFE [ Polytetrafluorethylene ]
PTFE 103 (Polytetrafluorethylene + 40% bronze).
PTFE 103 – material made of filled semi-finished thermoplastic based on polytetrafluoroethylene.
PTFE 103 has an exclusively wide temperature range (from -200°С up to +260°С), very low friction coefficient and high chemical resistance.
PTFE 103 has a «non-stick» surface and doesn’t absorb moisture. By its fillers the time-depended deformations lower than with PTFE 101 (reduction in cold flow, increased resistance to extrusion).
Besides filler – bronze powder, which increases extrusion resistance and decreases friction coefficient, the main distinctive characteristics are shown in the below table.
PTFE 103 can be used for production of U-Rings, seals, anti-extrusion back-up rings, support rings, chevron seals and guide rings. PTFE 103 mainly used in applications with high thermal and chemical stress.
This material can also be used in cases where low friction, high extrusion and deformation resistance are required, and PTFE 101 can not be used.
- Seals for low friction at high stress
- Sliding and back-up elements