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Copper Acid

Product information "Copper Acid"

Acid Copper – Bright Copper Electrolyte BMG-095.1

Acid bright copper electrolyte for high-gloss copper electroplating


Short Description

The Acid Bright Copper Electrolyte BMG-095.1 is a high-quality electroplating solution designed for electroplating copper onto metal surfaces.
It is suitable for tank plating as well as brush / pen plating and produces very smooth, bright and uniform copper coatings with excellent electrical conductivity and mechanical properties.

This acidic copper electrolyte is more powerful than alkaline copper systems and is used whenever high surface quality, strong adhesion and excellent brightness are required.


What is this electrolyte used for?

The acid bright copper electrolyte is used for electroplating conductive metals in order to:

  • provide corrosion protection

  • create decorative, high-gloss copper surfaces

  • serve as an intermediate layer for further coatings (nickel, silver, gold, chromium)

  • improve electrical and thermal conductivity

  • build complex multilayer systems such as copper → nickel → chromium or copper → nickel → gold


How does copper electroplating work? (simple explanation)

In electroplating, copper is deposited onto a workpiece using direct electrical current:

  1. The workpiece is thoroughly cleaned and degreased

  2. It is connected as the cathode (negative pole)

  3. A suitable anode (copper or graphite) is connected as the positive pole

  4. When current is applied, copper ions migrate from the electrolyte and form a copper layer on the surface

The result is a smooth, bright and conductive copper coating.


Advantages of the Acid Bright Copper Electrolyte

  • Produces high-gloss, uniform copper coatings

  • Excellent electrical conductivity

  • Suitable for tank plating and brush / pen plating

  • Ideal as a base layer for nickel and decorative metal coatings

  • Good polishability, reducing post-polishing effort

  • Reliable performance when operated within recommended parameters


Technical Parameters

The following values represent typical operating parameters for acid bright copper electrolytes:

PropertyValue / Range
Electrolyte typeAcid bright copper electrolyte
pH valueapprox. 1
Operating temperature15–50 °C
Voltage (tank plating)0.5–2.5 V (recommended ~1–1.5 V at 10 cm electrode distance)
Voltage (brush / pen plating)1.2–4.5 V (recommended ~3 V)
Current density0.6–5 A/dm² (up to ~7 A/dm² with agitation)
Deposition rateapprox. 1 µm/min at 5 A/dm² and 20 °C
Anode materialCopper or graphite
Suitable substratesCopper, brass, stainless steel, acid-resistant metals
Not suitable without pretreatmentAluminum, chromium, zinc, tin, titanium

Important:
Acid-sensitive metals such as steel, iron or zinc must first be pre-plated with an alkaline copper electrolyte before using this acid copper system.


Practical Application Notes

Surface preparation:

  • Thorough degreasing and cleaning are essential

  • No grease, fingerprints or residues should remain on the surface

Tank plating:

  • Maintain recommended voltage and current density

  • Keep appropriate distance between anode and cathode

Brush / pen plating:

  • Keep the plating pad in constant motion for uniform deposition

Temperature:

  • Can be used at room temperature or heated up to 50 °C for improved deposition behavior


Safety Information

Acid copper electrolytes contain acidic components and copper salts and must be handled carefully:

  • Wear chemical-resistant gloves, safety goggles and protective clothing

  • Avoid contact with skin and eyes

  • In case of contact, rinse immediately with plenty of water

  • Use only in well-ventilated areas

  • Do not inhale vapors or aerosols

  • Do not discharge into drains or the environment

  • Keep out of reach of children

Always observe the Safety Data Sheet (SDS) and applicable hazard labeling.


Scope of Delivery

  • Acid Bright Copper Electrolyte BMG-095.1

  • Quantity according to selection


Conclusion

The Acid Bright Copper Electrolyte BMG-095.1 is a professional electroplating solution for producing bright, smooth and conductive copper coatings. It is ideal both as a stand-alone copper finish and as a high-quality base layer for further electroplating processes. When used correctly, it delivers reliable, professional results for both beginners and experienced users.


H290 May be corrosive to metals. 

H315 Causes skin irritation.

H318 Causes serious eye damage. 

H400 Very toxic to aquatic life. 

H411 Toxic to aquatic life with long-lasting effects. Safety instructions 

P101 If medical advice is needed, have product container or label at hand. 

P102 Keep out of reach of children. 

P273 Avoid release to the environment. 

P280 Wear protective gloves/protective clothing/eye protection/face protection. 

P305+P351+P338 IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing. 

P310 Immediately call a POISON CENTER/doctor. 

P391 Collect spillage. P501 Dispose of contents/container in accordance with local/national regulations. 

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