Acid Potassium Chloride Zinc Electroplating Brightener

Brightener The main brightener can produce remarkable brightening and leveling effect. If the content is too high, the coating in the low current density area will become thinner, and the bottom will be exposed after passivation, which will easily lead to increased brittleness of the coating and affect the passivation quality. The content is too low, the coating bright leveling effect is not good. The content in the bath is maintained at 0.8-2ml/L.

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Description

Softener

Solubilizing main brightener, auxiliary brightening effect, increase the coating thickness in low area, improve the depth capacity of the bath, reduce the surface tension of the bath, on the cathode surface wetting effect.

The content in the bath is 25ml/L - 30ml/L

The coating brittleness increases and passivation quality is affected by high content.

The content is too low, the bright effect is not good, the coating is easy to flower, stay in the air and change color quickly.

20230722160756-025

Bath formula and technological parameters

	concentration range	Standard concentration
KCl	200-230 g/L	220g/L
ZnCl	60-100 g/L	60g/L (barrel)
Boric Acid	30-40 g/L	35 g/L
HL-93 Softening Agent	20-30 g/L	25 g/L
HL-93 Brightening Agent	0.6 ml/L- 1.0 ml/L	0.8ml/L
Temperature (℃)	10-55℃	40℃
PH value	4.8-5.6	5.2
DK (A/dm2)	0.1-5	3