... primers, or mingle paint of primer and top-coat. 1. ATP: used in fire, heat, and acid resistant ... for alkali silicate, etc. 2. Modified Aluminum tripolyphosphate series:APW-1 and APW-2: Completely zinc oxide modified products, can ... be used directly in manufacturing paint. Normally, APW-1 is used in oil paint, and APW-2 is ... in customize according to client needs. Aluminium Tripolyphosphate Series