PRIMER Russian patent published in 1996 - IPC

FIELD: protection of components and structures of iron and steel and concretes used under atmospheric conditions and under increased moisture conditions. SUBSTANCE: primer comprises (%): 41.5-61.5 pentaphthalic varnish modified with epoxy-fatty acid oligomer; 30.0- 45.0 zinc powder; 6.5-10.0 polymethyl urea and 2.0-3.5 siccative. Modified pentaphthalic varnish represents product of reaction of low molecular epoxy-diane resin and thallic oil or fatty acids thereof at 5:2 weight ratio thereof, at pentaphthalic varnish to epoxy-fatty acid aligomer weight ratio of 4:1. Varnish and oligomer are charged into mixer, the whole is stirred at 50+-5 C for 1 hour and the resulting product is cooled and pumped into disolder. Siccative and polymethyl urea are fed, the whole is stirred, zinc powder is then added. Primer is applied to metallic surfaces. EFFECT: improved properties of the primer. 2 tbl