generally not suitable for Vamac. Because of the polarity of AEM elastomers and the high end-use temperatures that Vamac parts are exposed to, only specific classes of plasticizers are acceptable. In general, aromatic plasticizers are compatible with Vamac but are too volatile; naphthenic plasticizers are less volatile than aromatics but only marginally compatible; paraffinic plasticizers are thermally stable at end-use temperatures but incompatible.
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