Zinc Bright Acid

A brightener and carrier system for acid chloride zinc plating, supplied as a concentrate for rack and barrel operations.

Deposit characteristics

• Bright, ductile deposits from low to high current density
• Good coverage in recessed areas
• Deposit accepts trivalent and hexavalent passivates without additional activation
• Low internal stress, so parts that will be formed after plating do not crack

Bath control

Plating chemistry lives or dies on analysis. Zinc metal, chloride, boric acid, and pH all need regular titration, and brightener is added by ampere-hour consumption rather than by eye.

We support customers running this bath with periodic analysis in our Arleta laboratory — send a sample, get results and a recommended addition schedule. That service is the reason most of our plating customers stay with us, more than the chemistry itself.

Troubleshooting

If you are getting dullness in the low current density area, burning at high current density, or blistering, call before you dump the tank. Most of those are correctable by analysis and adjustment, and a tank dump is an expensive way to fix a problem that was a chloride imbalance.