Water dispersible polyamine-epoxy adduct and epoxy coating composition

A two component coating composition dispersed in an aqueous medium which comprises:

• A. a blend comprising
• (a) 0.25 to 4 weight parts of a water compatible polyamine-epoxy adduct formed by reacting a polyamine having primary amine groups with a mixture of a monoepoxide and polyepoxide wherein the monoepoxide is added in a proportion to react with from about 10 to 50% of the primary amine groups and the polyepoxide is added in an amount to react with from 5 to 65% of the remaining primary amine groups;
• and
• (b) one weight part of a resin compatible polyamine,epoxy-adduct formed by reacting a polyamine having primary amine groups with a monoepoxide or a polyepoxide;
• said water compatible polyamine-epoxy adduct and said resin compatible polyamine-epoxy adduct blend having at least 25% of the remaining amine groups reacted with formaldehyde and the polyamine subsequently at least partially neutralized by reaction with an acid;
• and
• B. a polyepoxide resin present in an amount such that there is from about 0.5 to 1.5 equivalents epoxide per amine active hydrogen in the blend.