Amber Composites Ltd.’s (Langley Mill, U.K.) new low-temperature-cure HX90N tooling prepreg features a specially designed nanomodified epoxy resin to provide benefits that Amber says previously were unattainable. The prepreg reportedly improves the surface flatness and finish of tools made from various pattern materials, including aluminum and epoxy tooling board. By providing molds with a flatter and pinhole-free surface finish, the product is said to reduce both the preparation time necessary to achieve Class A surfaces and the quantity of primer needed, which decreases the weight of the finished product. Tool life is extended due to the material’s greater resistance to surface pitting. The material also is said to offer good drapability, allowing complex mold shapes to be more easily formed.