Color-coated metal sheet rust inhibitor MC-P5150

Feature

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

Application process

• Appearance: Greenyellow transparent liquid
• Density: 1.14±0.03 g/cm3
• Recommended concentration: 5-15%
• Solution Temperature: 20~40℃
• Chromic acid value: 11.5±1.5
• 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.

Technical process

① Cleaning---②Water wash---③Water wash---④Air dry---⑤MC-P5150 dipping ---⑥Dry

Application

-Galvanized sheet and alloy galvanized sheet or other metal material surface

Storage and handling

Available in 200 kg/ barrel or 25 kg/ barrel

Storage period: 6-12 months in closed containers, shady and dry place