Auto paint-Alloy primer-car paint Substrates: Sanded substrates including aluminium, galvanized steel, stainless steel, Zn-Fe alloying steel, steel. Surface Cleaning: Remove wax, silicon or other contaminations with degreaser. Item Weight Volume MAX-3360 Alloy Primer 100 parts 3 parts Mixing Ratio: MAX-3660 Hardener 25 parts 1 parts M-1 Thinner 20-35 parts 1-1.5 parts Pot Life: 4 hours at 25°C No.of Coats: 2-3 coats,25-35um Flash-off time: 5-10 minutes between coats at 25°C Spray guns & Pressure: Gravity feed 1.4-1.6mm 3-5kg/cm2 Siphon feed 1.7-1.8mm 3-5kg/cm2 Drying time: 20°C 30°C 70°C 16-20 hours 8-10 hours 40-50 minutes Sanding: Dry sanding with P240-P400 or wet sanding with P600-P800 Re-coat: Apply putty, primer surfacer, and all kinds of topcoats after drying and sanding Shelf Life: 2 years in original sealed can at cool and dry place at 20°C Packaging: Alloy Primer: 4kg, Hardener: 1L