Mi–Phos 22 PW EX is a liquid concentrate which, when mixed with water and operated at a
temperature of 90°F to 175°F., will clean and produce a phosphate coating on steel and
some alloys of zinc and aluminum. Mi–Phos 22 PW EX can also be used on zinc plate,
aluminum and terne plate as a cleaner, smut remover and as a preparation for painting.