High Shine Alclad finishes will reproduce a wide range of realistic and durable metal finishes on aircraft, car and truck models, armor and figures. For use on injection plastic kits, a primer (ALC302, ALC306, or ALC309) is necessary. Plastic primers should be lightly polished with 1000/1200 wet-or-dry sandpaper ot give a less absorbent smooth surface. Shake thoroughly before use. Spray light coats at 12-15psi. Pre-thinned, do not thin. Designed for use with airbrushes only. Continental USA shipping only. Ground service only.thin.