Bright Acid Copper Process

DEUTEQ CUBRITE 450
Bright acid copper process

Introduction

1.    Deposits a brilliant ductile copper with excellent leveling. High brightness and excellent leveling are obtained over the whole current density range.

2.    Used as an undercoat for a variety of nickel-chromium combinations on steel, brass, aluminum, zinc die castings and plastics.

3.    Brightener additives are very stable resulting in high quality production at low brightener consumption.

4.    The adhesion between copper deposits and nickel deposits is excellent. In addition, the copper deposits are soft, very ductile and have a low internal stress which is ideal for plating on plastics.

Operating Conditions

DUETEQ CUBRITE 450B                 0.8 to 1.2%

DUETEQ CUBRITE 450M                 0.03 to 0.08%

DUETEQ CUBRITE 450L                  0.01 to 0.1%

Copper Sulfate Pentahydrate          180 to 240 g/L

Concentrated Sulfuric Acid             45 to 75 g/L

Chloride Ion 60 ppm (mg/L)             40 to 80 ppm (mg/L)

Cathode Current Density                  3 to 6 A/dm2

Anode Current Density                      1.5 to 3 A/dm2

Tank Voltage                                      3 to 9 V

Temperature                                       21 to 32 °C

Agitation                                              Vigorous air agitation

Filtration                                              Continuous