Polyurethane Self-Priming Topcoats
Patent, Filed 25 Aug 1992, patented 1 Mar 1994
DEPARTMENT OF THE NAVY WASHINGTON DC
Pagination or Media Count:
A corrosion-resistant coating which can be applied directly to a surface as self-priming topcoat comprising a polyurethane resin binder and a combination of pigments consisting essentially of a molybdate-modified zinc phosphate, zinc salts of benzoic acids, and an alkaline earth metal phosphate such as zinc-barium phosphate. In addition, the coating contains up to about 35 parts by weight of a titanium dioxide pigment, up to about 3.0 parts by weight of an oil soluble dispersant agent and up to about 50 parts by weight of at least one organic solvent.
- Coatings, Colorants and Finishes