PEEK polymer is widely regarded as a material with superb chemical resistance. Chemical resistance can be ranked as follows:
A - No attack. Little or no absorption.
B - Slight attack. Satisfactory use will depend on the application.
C - Severe attack. It should not be used for any applications where these chemicals are present.
These tables provide general guidance for use with PEEK polymer and compounds. It has been shown that the performance of a component can depend on factors such as residual molding stresses and crystallinity level. Application-specific chemical resistance testing is essential for all components.
Where no concentration is indicated against a chemical environment it can be assumed that a saturated solution or a 100% concentration was used. The chemical compatibility of PEEK polymer in such environments is a worst case scenario and further test work is recommended for components which encounter diluted solutions of these chemicals. Spaces in the following tables represent conditions not yet tested.
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