Phenolic Flat Washers - Hard, Heat-Resistant Insulating Washers
Phenolic flat washers are made from thermoset phenolic resin, offering excellent electrical insulation, hardness, and heat resistance-making them a reliable non-metallic washer for electrical equipment, circuit boards, and industrial applications with moderate temperature exposure. Superior Washer & Gasket Corp produces phenolic washers in standard and custom sizes.
As an ISO 9001:2015 certified specialty washer manufacturer, we supply phenolic washers alongside fiberglass, Kapton, mica, and other high-performance insulating washers-all made in the U.S.A. to your precise OD, ID, and thickness requirements.
- Thermoset phenolic for hardness and electrical insulation
- Good heat resistance for industrial applications
- Standard and custom phenolic washer configurations
- ISO 9001:2015 certified manufacturing
- Made in the U.S.A.