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Enbee

Hexavalent black passivation
Features

Enbee I is the first component of the black passivation dip that contains chromic acid whereas Enbee II is based on silver nitrate and is responsible for imparting the black colour to the passive film. The proportions of the two components should be adjusted in order to get a jet black colour and would depend on the nature of the electrodeposit

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