Peflon PEEK，high performance engineering plastic, is known for its exceptional chemical resistance, mechanical strength, and excellent dimensional stability. PEEK is resistant to steam, water, and seawater. PEEK maintains its stiffness at elevated temperatures, in continuous use up to 338°F (170°C).This engineering peek plastic material has a proven track record in challenging environments such as aerospace, oil and gas, food and beverage processing, and semiconductor.And Peek melting point arrives at 343°C,PEEK temperature limits Short-term exposure can exceed 300°C, but long-term use is recommended ≤260°C.PEEK glass transition temperature about 143°C, the critical point where the material transitions from rigid to highly elastic.