PEEK - Chemical Resistance at High Temperature

A=suitable
B=marginal; dependent on application
C=not recommended
Chemical Temperature Rating
Acetic acid 200°C (420°F) B
Ammonia gas 200°C (420°F) A
Carbon monoxide gas 200°C (420°F) A
Ethylene glycol 200°C (420°F) B
Ethylene glycol (50%) 140°C (284°F) A
Hydrogen sulphide gas 200°C (420°F) A
Liquid ammonia 200°C (420°F) B
Methane 200°C (420°F) A
Methylethylketone 200°C (420°F) C
Nitrobenzene 200°C (420°F) C
Phosphoric acid (50%) 200°C (420°F) A
Sodium hydroxide solution 200°C (420°F) A
Sulphuric acid (50%) 200°C (420°F) B
Sulphur dioxide gas 200°C (420°F) A