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Temperature Resistance

Maximum Operating Temperatures of Plastics

There are two ways in which Maximum Operating Temperatures are quoted. One is the Intermittent Peak or spike temperature, and the other is the Continuous Use temperature.

The figures below are for continuous use, above which Plastics lose their mechanical properties at a rate closely related to the dynamic stress on the part.

Plastic Type Max. Temp C
Kevlar/PBO 550
Kevlar 350
PBI (Polybenzimidazole) 310
PTFE 260
PAI (Polyamide-imide) 250
PEEK 250
PPS (Polyphenylene Sulphide) 220
PPSU (Polyphenylenesulphone) 180
PEI (Polyretherimide) 170
PSU (Polysulphone) 150
PVDF 150
PP 130
PC (Polycarbonate) 125
PETP 115
PETP TX 115
Acetal Copolymer 115
Nylon (MoS2) 105
Nylon (Oil Filled) 105
Nylon 66 95
UHMWPE 7000 90
Nylon 6 85
HMWPE (500) 80
HDPE (300) 80
PVC 60