Black Chrome
黑铬
Decorative and functional black chrome offering low reflectivity and good corrosion resistance for defence and precision optics.
Black chrome is a specialised electroplating process that produces a deep, uniform matte-black finish with good corrosion resistance. Unlike black paint or black oxide, black chrome is a true metallic coating that is hard, durable, and non-reflective.
The coating is widely used in defence and law-enforcement equipment, precision optical instruments, automotive trim, and consumer electronics where a premium black metallic aesthetic is required.
Active Treatment's black chrome process can be applied over bright chrome or directly onto steel and other substrates, depending on the application requirements.
Key Benefits
- Very low light reflectivity — ideal for optical assemblies
- Hard, durable metallic finish
- Good corrosion resistance
- Premium black metallic aesthetic
- Does not chip or peel like paint
Specifications
| Hardness | HV 700–900 |
|---|---|
| Substrate | Steel, zinc-plated steel, bright chrome |
| Thickness | 0.5–3 µm |
| Reflectivity | <5% (matte black) |
Frequently Asked Questions
How is black chrome different from black oxide?
Black chrome is an electrodeposited metallic coating offering significant corrosion resistance and hardness. Black oxide is a chemical conversion coating that is much thinner, provides minimal corrosion protection, and is mainly decorative.
Can black chrome be applied over existing bright chrome?
Yes. Applying black chrome over a bright chrome base improves corrosion resistance and adhesion. This is a common specification for high-quality firearm components and optical mounts.
How reflective is black chrome?
Black chrome has a reflectivity of less than 5% in the visible spectrum, making it suitable for use in optical systems that require minimal stray light.
Is black chrome RoHS compliant?
Traditional black chrome uses hexavalent chromium, which is restricted under RoHS. We can discuss trivalent chromium alternatives or black electroless nickel for RoHS-compliant applications.
What applications is black chrome most commonly used for?
Black chrome is widely used for firearm components, riflescopes, camera equipment, luxury automotive trim, watch cases, and any application requiring a premium hard black metallic finish.
Request a Quote
Contact Active Treatment Pte Ltd in Singapore for Black Chrome. Call +65 6352 9846 or email activetreatment88@yahoo.com.sg.