***1200 Series is a single part, air cured coating that is the KG proprietary single component water-based polyurethane resin that doesn’t require a hardener. It takes only 80 minutes for this coating to cure at near room temperature, producing a hard but flexible film. This is perfect for all plastics, rubber and other delicate material that cannot be subjected to the high temperature - as well as metals and composites. This is liquid and requires your spray gun or air brush.