High temperature liner

An extrudable resin composition, consisting of:

• 50 to 99.9 wt. % of a high temperature engineering thermoplastic consisting of one or more polyphenylene sulfides;
• 0.1 to 40 wt. % of a reinforcement component consisting of glass fiber;
• 0.01 to 10 wt. % of an enhancing filler component consisting of titanium dioxide;
• 0.001 to 5 wt. % of a polymeric lubricant consisting of polytetrafluoroethylene;
• and
• 0.001 to 2 wt. % of an external lubricant selected from the group consisting of calcium stearate, zinc stearate, palmitic acid amides, stearic acid amides, oleic acid amides, and N,N′-ethylenebisstearamide, wherein the extrudable resin composition maintains its form and function at temperatures up to about 232° C., and further wherein the high temperature engineering thermoplastic has a heat deflection temperature higher than about 121° C.

An extrudable resin composition, consisting of:

• 50 to 99.9 wt. % of a high temperature engineering thermoplastic consisting of one or more polyphenylene sulfides;
• 15 to 25 wt. % of an enhancing filler component consisting of mineral oxide;
• 0 to 5 wt. % of a polymeric lubricant consisting of polytetrafluoroethylene;
• and
• 0.001 to 2 wt. % of an external lubricant selected from the group consisting of calcium stearate, zinc stearate, palmitic acid amides, stearic acid amides, oleic acid amides, and N,N′-ethylenebisstearamide, wherein the extrudable resin composition maintains its form and function at temperatures up to about 232° C., and further wherein the high temperature engineering thermoplastic has a heat deflection temperature higher than about 121° C.