Polyphenylene sulfide, or PSS, is a thermoplastic material that has an excellent resistance to corrosive chemicals. PPS plastic has thermal stability and is compatible with temperatures reaching 425 degrees F. Our polypropylene sheet selection is beneficial to use for manufacturing applications, as PPS absorbs very low amounts of moisture. We have 12” x 12” sized sheets with various thicknesses, and they maintain a tensile strength of 13,500 PSI. If looking for additional plastic sheets styles? We have UHMW polyethylene sheets that have a great high impact resistance, and our PTFE sheets are crafted with high melting points.