- The rust inhibitor applied to dipping, spray and roller coating
Contain hexavalent chromium and can increase anti corrosion of Galvanized sheet and alloy galvanized sheet
l Appearance: Greenyellow transparent liquid
l Density: 1.14±0.03 g/cm3
l Recommended concentration: 5-15%
l Solution Temperature: 20~40℃
l Chromic acid value: 11.5±1.5
l Dry temperature: 50~80℃
Adding 50~150L MC-P5150 and 850~950L deionized water or soft water into 1000L tank. The chromic acid value is 10.4~31.3 in the aqueous.
Chromic acid value test method: Firstly, add 10ml aqueous into an Erlenmeyer flask. Then add 50ml DI water and 20ml 50% H2SO4 aqueous. Add 1~2g KI follow. Using 0.1mol/L Na2S2O3 standard solution to titrate it. While the solution changes from reddish brown to yellowish-brown, add 2ml starch solution. The solution turns into dark blue. Then continue to use 0.1mol/L Na2S2O3 standard solution to titrate till dark blue disappears. The consumption volume of 0.1mol/L Na2S2O3 standard solution is the chromic acid value
Supplement: Add 4.7L (5.3KG) MC-P5150 into 1000L solution while the chromic acid value decreases by 1
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