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Black Chrome - Smoky Chrome

Product information "Black Chrome - Smoky Chrome"

Black Chrome (Smoky Chrome) Electrolyte BMG‑108.3

Decorative Black Chrome Plating Solution – Striking Dark Metallic Finish


Short Description

The Black Chrome (Smoky Chrome) Electrolyte BMG‑108.3 is a specialized electroplating solution for producing dark metallic black chrome coatings on metal surfaces.
This finish delivers a dramatic anthracite to deep black shimmer that is highly sought after for decorative and design‑oriented applications. It is a compelling alternative to black rhodium or black ruthenium plating and provides a distinctive, eye‑catching surface effect. 


What is Black Chrome Plating Used For?

Black chrome plating is used when high contrast, dark metallic visual aesthetics are desired. Typical uses include:

  • Decorative finishes on automotive trim and accessories

  • Consumer electronics and luxury items

  • Jewelry and fashion hardware

  • High‑end metal components where a stylish black surface is preferred

  • Coatings over copper, nickel, gold or gold flash finishes

Compared with bright chrome, black chrome offers a unique visual style while still benefiting from chromium’s metallic properties.


How Does Black Chrome Plating Work? (Simple Explanation)

Black chrome plating is an electrolytic process in which chromium is deposited onto a prepared base layer (e.g., nickel, copper or gold) using direct current:

  1. Surface preparation: The base metal must be clean, polished and thoroughly degreased.

  2. Electroplating: The workpiece is connected as the cathode (negative pole). A suitable anode (such as graphite or platinum) is used as the positive pole.

  3. Controlled plating: Under controlled voltage and temperature conditions, chromium ions are reduced and deposit as a dark, metallic black layer.

  4. Finish: After plating, parts are rinsed and dried to reveal the final black chrome finish.

This plated layer combines decorative appeal with the corrosion resistance typical of chromium coatings.


Key Benefits of Black Chrome Electrolyte BMG‑108.3

  • Produces a dark anthracite to black chrome finish that stands out visually

  • Works over copper, nickel, gold or other metal bases

  • Suitable for tank plating, brush plating and other methods

  • Creates a metallic look distinct from painted or powder‑coated black surfaces

  • Ideal for decorative, hobby, custom, and high‑end metalwork applications

  • No special storage requirements; easy to handle in typical galvanic setups


Technical Parameters

Typical operating values for this black chrome plating solution are as follows:

PropertyValue / Range
Electrolyte typeBlack chrome plating solution
Voltage range9–11 V (use slightly higher voltage with platinum anode)
Operating temperature20–30 °C
Lightness (L*) of deposit65–70 % (dark metallic)
Recommended electrodeCarbon or platinum electrode
Chromium content in plate~99 % (balance carbon)
Plating rate (10 V, carbon)~2 µm / min (spot)
Maximum plating thickness~3 µm
Hardness (as plated)800 HV
Hardness after heat treatment1500–1600 HV
Deposit density~7.2 g/cm³
Shelf life1–2 years
Hazard classificationNot classified as dangerous
Transport classNot classified as hazardous for transport

Notes:

  • Heat treatment at ~220 °C increases hardness significantly.

  • When using a platinum electrode, slightly higher voltage (max. 11 V) is recommended for consistent coverage.

  • Stainless steel anodes are generally not recommended for most plating processes


Practical Application Tips

  • Surface preparation: Polishing and thorough degreasing significantly improve adhesion and finish quality.

  • Base layers: Black chrome often performs best over nickel or gold flash layers, but can also be applied on copper or other well‑prepared substrates.

  • Electrode choice: Graphite electrodes are commonly used for black chrome plating due to wide compatibility and stable performance.

  • Heat post‑treatment: Optional heat treatment enhances hardness and mechanical resistance.


Safety Information

Although not classified as a dangerous transport substance, proper safety measures are required:

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

  • Avoid skin and eye contact

  • Wash immediately with water if contact occurs

  • Work only in well‑ventilated areas

  • Observe local disposal regulations for plating waste


Conclusion

The Black Chrome (Smoky Chrome) Electrolyte BMG‑108.3 is a specialized plating solution for creating striking dark chrome finishes that are both decorative and durable. It works well over a range of base metals and is suitable for hobby projects, customized finishes, automotive detail work and other applications where a unique black metallic surface is desired. By following proper surface preparation and recommended operating parameters, you can achieve consistent and visually impressive results every time.

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Ghs-gefahrensymbol-08-systemische-gesundheitsgefahr-klein

Pictogram

Signal word Danger

Hazard statement(s)

H360FD May damage fertility. May damage unborn child.

Precautionary statement(s)

P201 Obtain special instructions before use.

P261 Avoid breathing dust/fume/gas/mist/vapours/spray.

P273 Avoid release to the environment.

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

P308 + P313 IF exposed or concerned: Get medical advice/ attention.

P501 Dispose of contents/ container to an approved waste disposal plant.

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