PPS

PPS plastic — polyphenylene sulfide — is a semi-crystalline high-performance thermoplastic that combines outstanding resistance to chemicals, fuels, and solvents with excellent thermal stability and dimensional precision. PPS material is specified wherever both chemical aggression and elevated temperature service requirements must be met simultaneously — a combination that rules out most standard engineering thermoplastics.

PPS exhibits virtually no known organic solvent attack at temperatures below approximately 200 °C, making it one of the most chemically inert melt-processable engineering polymers available. It maintains low moisture absorption and excellent dimensional stability in harsh environments, and performs reliably under continuous heat without significant mechanical property degradation. Its semi-crystalline structure provides predictable, stable behavior across the operating temperature range.

Typical applications include pump bodies, valve components, chemical processing fixtures, automotive fuel system parts, and precision structural components operating in aggressive fluid environments. PPS is also widely used in electrical and electronic applications where resistance to chemicals and heat must coexist with good insulation properties.

For applications requiring maximum stiffness in reinforced form, see PPS GF40 — the 40% glass-fiber-reinforced grade. Visit the PPS product page for stock information and to request a quote.