Product Introduction
Additive for WR-1 Chromium Plating
Property

1. Wide technique range and good covering ability. The throwing power can increase by 30~60%, the current efficiency is up to 22~24%, non-corrosion at the low current area.

2. HV hardness increases by 10~30%, the period of neutral salt-spraying test increases 1~2 times.

3. Low content of chromic acid, it is 40% of routine plating solution, lower the content of chromic acid in waste water, easy to be treated, high economic efficiency.

4. The technique is stable, easy to maintain.

Technical Formulation and Operating Condition

Chromic acid (CrO3)

140~180 g/L

Sulfuric acid (H2SO4)

0.4~1 g/L

WR-1

1~2 g/L

Cr3+

< 4 g/L

Temperature

25~70℃

DK

5~60 A/dm2

Anode

Lead-Tin alloy plate (Tin content 8~15%)

Sk : SA

1:3 below