Ketron® CM 1030HT is a 30% carbon-filled PEK that offers an heat deflection temperature of 230° C / 450° F. This material provides added stiffness at high temperatures, is carbon-filled for added strength and stiffness, offers good dimensional stability, and excellent chemical, and corrosion resistance. Typically applications for this material include labyrinth seals, backup rings, valve seats, and line shaft bearings.