ENGINEERING PLASTICS · 3 MATERIALS
High-performance plastics
PTFE and PEEK are high-performance plastics suitable for continuous service at up to 250–260 °C. PTFE is chosen for seals and sliding parts because of its chemical resistance and the lowest coefficient of friction of any plastic, 25 % carbon-filled PTFE for bearings and piston rings under higher load and wear, and PEEK for load-bearing parts because it retains much of its strength at high temperatures. Supplied as sheet, rod and tube, cut to size; minimum order 5 kg.
Materials and properties
Continuous service temperatures and densities are typical values; actual values depend on the grade and, for temperature, on the load and application.
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