Multilayer films of ABS resin and amorphous polyamide resin are provided which are thermoformable with the use of an adhesive layer comprising a blend of the amorphous polyamide resin and the ABS resin. The multilayer films exhibit gas barrier properties which allow for the use of these films in environments where blowing agents escape from foamed-in-place insulation. The multilayer films can be thermoformed to provide equipment liners such as refrigerator liners, dishwasher liners, car interior panels, and appliance housings.