Composition RPC-2K for rainbow passivation of zinc coatings
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- Country of manufactureRussia
- Type of substanceLiquid
Products: Composition for rainbow passivation of zinc coatings RPC - 2K buy wholesale price manufacturer Russia, Republic of Bashkortostan
Composition RPC - 2K is intended for rainbow passivation of zinc coatings obtained from any type of electrolyte.
Composition RPC - 2K provides high - quality passive films with high corrosion resistance and good appearance.
Composition RPC - 2K is available in the form of an aqueous solution, which facilitates its application.
1.Composition RPC - 2K - 100 - 140 ml / l
2. Concentrated nitric acid - 4 - 7 ml / l
- Temperature - 18 - 300C.
- Exposure time - 20 - 40s.
- Transfer time - no more than 60s.
- pH - 1.5 - 2.0
Correction of the solution
- During operation, the acidity of the solution is corrected with sulfuric acid and the composition RPC - 2K. When correcting with the composition RPC - 2K, it is recommended to add an appropriate amount of nitric acid.
- When correcting the solution does not restore the quality of the chromate film, the solution is replaced in whole or in part.
- Composition RPC - 2K contains hexavalent chromium, therefore, wastewater disposal consists in neutralizing the solution and treating it with sodium bisulfite.
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