High Temperature Zn-618 Brightener for Acidic Zinc Plating with High Gloss and Good Leveling Ability

High temperature Zn-618 Brightener for Acidic Zinc Plating

1. Properties

1. It is composed by primary brightener and auxiliary one, it owns high gloss and leveling ability.

2. High current efficiency, good leveling ability, as well as stable.

3. Good heat resistance, suitable for no refrigeration equipment manufacturers.

4. Both rack and barrel plating additive suitable for processing of complex parts.

2. Bath composition and Operation condition

3. Solution Make-up

Add water at the 2/3 amount of bath volume, then add above amount of KCl and ZnCl₂ and stir. Dissolve H₃BO₃ with 80℃ hot water and add slowly into the bath, then add 1-2g/L zinc powder, stir 20-30 minutes, Filter into the bath after solution becomes clarified, add water according to calculated volume. Dissolve above calculated Zn-618 additive by one time of volume water and add into the bath, stir uniform, then start to do trial plating.