Research on Inorganic Zinc Silicate Shop Primer

The inorganic zinc silicate shop primer film-forming mechanism,ethyl silicate hydrolysis,modifying and preparation of bases were introduced.By ethyl silicate modification,the flexibility of inorganic zinc silicate shop primer was increased.Based on salt spray resistance testing,zinc phosphate,B-004 ferrophosphorus powder and 5% zinc powder as anti-corrosive pigments were chose.By comparing the application property,salt spray resistance and storage stability,the dosage of polyvinyl butyral resin was determined.HX-8800 and BYK-420 was chose as antisettling agent,1%CB was adjusted into the solvent system to control the drying time,and finally the formula was determined.The product could meet automatic spray line application,paint film could dry quickly,had excellent anti-corrosive property,matched with varieties of topcoat,and didnˊt affect welding and cutting.