A brief outline is given of the history of wash primers with emphasis on laboratory research. A mechanism is postulated to explain the loss of adhesion with time of WP-1. Topics discussed include phase rule studies of zinc tetraoxychromate, intrinsic viscosities of recovered polymers, reactions involving formation of phosphorus-chromius-resin complex, deposition of tertiary zinc phosphate on metal, and modifications made in WP-1. Several organic structural formulae are included. 5.4.5
Subject
Acids,
Wash primer,
Materials,
Composition,
Viscosity,
Chromium,
Mixtures,
Polymers,
Phosphates,
Metals,
Phosphoric acid,
Zinc,
Resins
© 1961 National Association of Corrosion Engineers
1961
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