NP310EB pre-preg is a semi-cured material that combines a medium-weave, cotton fabric substrate with an electrical grade phenolic resin system. In b-stage form, the material is partially cured to allow for final curing in the customer's application. The resulting part is easy to finish using standard wood or metal working tools, operates with less noise than metals in bearing and bushing applications, and is virtually non-abrasive in wear applications. It is suitable for use in explosion-proof environments. NP310B is used to make molded gears, pulleys, rollers, and guides, as well as electrically insulated parts such as control boards or transformer bases, for small dry type transformers.