Priming paint usually supplied as one- or two-component systems. The paint contains carefully balanced proportions of an inhibiting chromate pigment, phosphoric acid, and a synthetic resin binder mixed in an alcohol solvent. On clean, light alloy or ferrous surfaces, and on many nonferrous surfaces, such paints give excellent adhesion, partly due to chemical reaction with the substrate, and give a corrosion-inhibiting film which is a good basis for the application of subsequent coats of paint. Although these materials are referred to as primes, the films which they produce as so thin that it is more correct to consider them as etching solutions and to follow them with an ordinary primer if maximum protection is required. (Tracton AA (ed) (2005) Coatings Technology Handbook. Taylor and Francis, New York; Weismantal GF (1981) Paint Handbook. McGraw-Hill, New York) Also known as Pretreatment Primers, Etch Primers and Self-Etch Primers.