JD Lincoln (Costa Mesa, Calif.) has launched L-316/11, a new epoxy surface improvement film developed specifically for use with composite parts molded by low-pressure vacuum bag processing. The film is said to be particularly useful in the production of one-shot honeycomb-cored sandwich structures where telegraphing of the honeycomb structure is a risk factor. The film, formulated to cocure with most epoxy systems, requires a 250°F/121°C cure cycle, but reportedly can tolerate cycling at 350°F/177°C and is compatible with out-of-autoclave prepreg systems. It can be applied as a surface layer to fiberglass, aramid or carbon fiber-based laminates where it reportedly provides a tough, readily sandable, paint-ready finish. The film is flame retardant and is capable of meeting the requirements of Federal Aviation Requirement (FAR) Part 25.853 (vertical burn). It comes standard on a polyester veil with a total areal weight of 0.035 lb/ft² (171 g/m²), but it also can be supplied in an unsupported format.
Editor PickSicomin appoints Suter Kunststoffe AG as Switzerland distributor
Sicomin’s entire range of advanced epoxy systems will be available to purchase through their new partner.