Description Two-component air-drying polyurethane based primer containing zinc phosphate as anti corrosive pigment. Recommended Use :- It is recommended as a primer for MS surface in OEM applications as well as in Process industries like fertilizer plants, Refineries, Petrochemical industries for protection of steel pipelines and structural from corrosion. Physical Data COLOUR : Grey FINISH : Matt SOLIDS BY VOLUME : 40 �± 3% THEORETICAL SPREADING RATE : 13.33 sq.mt / lit at recommended DFT of 30 �µ FLASH POINT : Base : Above 23�° C Hardener : Above 30�° C DRYING CHARACTERISTICS (At 30�° C and 65% Relative humidity) : SURFACE DRY : 30 minutes HARD DRY : Overnight FULL CURE : 7 Days SHELF LIFE : BASE : 6months HARDENER : 6 months Surface Preparation Abrasive blasting to Sa 21/2 Swedish Standards is the best method of surface preparation. In case blasting is not possible, then the surface of steel should be manually cleaned with brass wire brush, coarse emery paper, scraper, etc to remove rust, dust, loose old coating, oil, grease, and other foreign contaminants. It is preferable to give a solvent wipe after surface preparation. The surface should be absolutely dry, moisture and oil free before primer application or Phosphated components by 7-tank pretreatment process of surface preparation. Application Data MIXING RATIO : Base : Hardener (As per our recommendation) APPLICATION : By Brush / By Conventional Spray THINNER : Thinner 290 POT LIFE : 3 hours min at 30�° C RECOMMENDED DFT : 30-40 �µ. OVERCOATING INTERVAL : MIN : 8 hours MAX :24 hours (if it exceeds, the surface should be roughened by emery scuffing grade 320) COMPATIBILITY : Can be top coated with Epoxy, Polyurethane, Chlorinated rubber and Alkyd finish coatings.