NP511B prepreg is composed of a high temperature electrical grade epoxy resin (Tg = 170°C) combined with a woven glass substrate. This grade of prepreg is not flame retardant. With a non-brominated resin system, the product offers high mechanical strength at temperatures up to 170°C. Properly cured, it will retain half its room temperature flexural strength at elevated temperatures (150°C, after conditioning at 150°C for one hour). It can be produced from several glass styles for non-G11 applications.
