PEEK is a colorless organic thermoplastic semi-crystalline polymer with excellent mechanical and chemical resistance properties. It’s high-resistance to terminal degradation makes it useful in oil and gas environments. The processing conditions used to mold PEEK can influence the crystallinity and hence the mechanical properties.

As with PTFE, PEEK has several benefits for oil and gas companies. It has good dimensional stability and chemical resistance. In addition, PEEK is resistant to gamma radiation and X-rays.

PEEK has high mechanical strength and is ideal for high vacuum applications. Its robust nature makes it suitable for demanding applications such as the oil and gas industry. It works well in compressors, pumps, and pistons.

Properties of PEEK:

Heat resistance: PEEK is a high-temperature resistant thermoplastic resin with a melting point of 334 ℃ and a long-term service temperature of 250 ℃. The short-term working temperature is 300 ℃.

Flexibility: It ranks first among the heat-resistant resins.

Flame retardance: UL94V-0 spontaneous combustion, low smoke.

Resistance: only soluble in concentrated sulfuric acid.

Processing formability: good liquidity, easy to process twice.

Labyrinth, spring energized seals, backup rings, and seal packing in the oil and gas industry are manufactured using PEEK materials. In addition, it is the material most often chosen for the face seals at the wellhead to contain the high-pressure production of gas and fluid.