NP509 (NEMA G-9) consists of woven glass fabric combined with a melamine resin system. The product is a very hard and flame resistant machining grade with excellent electrical properties in low humidity conditions. It also offers high physical strength and excellent arc resistance, while meeting UL flammability requirement, 94 V-0 or better. Applications include switchboard panels, arc barriers, circuit breaker parts, and structural/electrical components. NP509 complies with the requirements of MIL-I-24768/1, Type GME, and MIL-I-24768/8, Type GMG.
