Black DLC
Black DLC is a finish based on diamond-like carbon, a family of amorphous carbon coatings. Its properties depend on the film and application process. For scissors, identify the underlying blade, coated surfaces and maker’s service guidance before interpreting a hardness figure or a claim about friction, wear or chemical resistance.
Separate the substrate from the finish claim
Color and appearance are observations; identity, process, thickness, exposed surfaces, and care need exact-product evidence. Apply to Black DLC
- 01 Base material Record the named substrate without inferring it from color.
- 02 Finish identity Distinguish polish, plating, PVD, paint, lacquer, and unresolved terms.
- 03 Surface map Note edges, pivots, wear zones, and components the finish does not cover.
- 04 Compatibility Use maker care, chemical, service, and allergy guidance at exact scope.
Do not inferA color, series name, shine, or generic metal photograph cannot prove coating chemistry, thickness, permanence, hypoallergenicity, or durability.
Black DLC
Quick look
- Material description: A carbon coating family, with different hydrogen contents and structures.
- Process: The family includes films deposited by PVD or plasma-assisted chemical vapor deposition (PACVD).
- Scissor example: Kikui distinguishes metallic-black DLC from matte-black fine-particle treatment plus DLC.
- Specification to request: Exact coating, coverage and service instructions for the ordered model.
Coating-family terminology, Kikui finish descriptions.
Why it matters
A surface film and a blade are different parts of the specification. An industrial coating result cannot establish a finished scissor’s edge life, cutting effort or suitability for a particular hair texture. Those questions require observations or tests on the actual tool, with the comparison and conditions stated.
Oerlikon describes hydrogenated and hydrogen-free carbon coatings and different deposition routes. Consequently, “DLC” is too broad to justify a single universal hardness, thickness or deposition temperature. A useful product description names the film where the maker supplies that information and leaves unknown details open. Technical family overview.
Shear pairing and compatibility
Start with the model’s blade material, geometry, length and handle fit. Then ask which surfaces receive the coating and how later sharpening affects them. A photograph of a black blade cannot answer these questions. The catalog examples above identify products to investigate; they do not demonstrate identical films, measured performance or a common coating supplier.
A coating should not be used to infer that every underlying blade is a particular premium steel, that all edges have the same geometry, or that a matching black texturizer removes hair at a particular rate. Keep those specifications attached to their own model records.
Technique map and services
When evaluating slide cutting or scissor-over-comb work, compare the actual candidate with a familiar pair on the intended task. Record handle comfort, controllability, blade length and the condition of both tools. Describe any observed difference as that trial’s result. A catalog friction statement alone cannot predict a stylist’s experience across wet and dry work.
For a purchase decision, the service route is also useful: who assesses wear, what work is available and whether coating restoration is offered. Ask these questions before treating the finish as a reason to extend a normal service interval.
Watch-outs and client care
The previous version described near-zero drag, universal chemical resistance and guaranteed advantages for coarse hair. The reviewed sources do not establish those outcomes for finished scissors. A black finish also provides no composition certificate or skin-contact assurance. Obtain the maker’s model-specific material information where that is part of the purchasing requirement.
Maintenance and pro tips
Use the maker’s instructions for the complete pair, including its pivot and handles. When requesting service, give the model code, finish, prior repair history and the observed problem. Avoid choosing an abrasive or cleaning chemical from a generic DLC label. Kikui’s factory repair page provides a documented route for its own products; it is not a universal service policy for other brands.
Advanced application: WPC + DLC combination
Kikui’s Japanese options page describes 50 µm ceramic beads followed by DLC for its matte-black option. This is a treatment sequence: the bead size is neither the carbon-film thickness nor a measurement of blade hardness. Its English catalog uses the WPC name for the fine-particle stage. Japanese options, English description.
The Kikui brand profile records the dated starting option fees. Confirm the order configuration with the maker. This example belongs to Kikui; the earlier attribution of a WPC-plus-DLC example to Mizutani was unsupported by the sources reviewed here.
Context and comparison
Fuji WPC publishes the following industrial coating examples. They demonstrate why a film needs a specific designation; these are not measured specifications for the Kikui, Kouho or Kasho examples on this page. No supplier relationship is inferred. Industrial table.
| Published industrial film | Film thickness | Film hardness | Deposition temperature |
|---|---|---|---|
| Fuji WPC standard DLC | 1 µm | 3000 HV | 100–200 °C |
| Fuji WPC heat-resistant DLC | 1 µm | 2000 HV | 100–200 °C |
Keep deposition temperature separate from an in-service temperature limit. Likewise, film HV does not supply a blade HRC value or a ranking of complete scissors. A fair comparison with black titanium needs identified films, test methods, substrate and the property being compared. Neither the color nor a single hardness number establishes overall superiority.
Correction, 30 September 2026: Replaced universal hardness, friction, chemical-resistance and sharpening claims with scoped coating evidence and an accurately attributed maker example. Historical source fragments remain available for incoming links.
See Also
Sources
5 sources- 🇩🇪 Oerlikon Balzers: DLC and other carbon coatings (manufacturer official)
- 🇯🇵 Fuji WPC: Industrial DLC coating specifications (manufacturer official)
- 🇯🇵 Kikui: Japanese product lineup and finish options (manufacturer official)
- Kikui — Product range (manufacturer official)
- Kikui — Manufacturer repairs (manufacturer official)
Frequently Asked Questions
4 answers you can open one at a timeWhat is diamond-like carbon on scissors?
DLC describes a family of amorphous carbon coatings. The exact film, underlying blade, coated areas and finishing process matter; black color alone does not identify a coating or its performance.
Does DLC make a blade harder throughout?
No. A published coating-hardness value describes the film under its stated test conditions. It is not the bulk hardness of the blade and should not be converted into an HRC rating for the assembled scissors.
Is WPC the same as DLC?
No. In Kikui’s combined option, fine-particle treatment precedes the carbon coating. Its Japanese page specifies 50-micrometer ceramic beads; that number describes the treatment media, not the thickness of the DLC film.
How should DLC-coated scissors be serviced?
Identify the exact model and finish when arranging service. Obtain the maker’s guidance for cleaning, sharpening and possible coating repair. The reviewed sources do not establish one mandatory abrasive, solvent rule or sharpening interval for all DLC scissors.
Comments & questions
Questions or feedback on this topic? Add a comment below.