ForMatter/Finishes/plate/PVD DLC (diamond-like carbon, black)
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PVD DLC (diamond-like carbon, black)

plate · matte · DLC, diamond-like carbon, ta-C, black PVD, tactical black

Carbon deposited by PVD as a deep-black, low-friction, near-diamond-hard film. Reads as the modern matte black — knife blades, watch cases, gun barrels, fishing reels, firearms. Beats anodize and powder coat for hardness and wear; expensive but lasts.

Plasma-enhanced CVD or filtered cathodic-arc deposition of amorphous carbon with substantial sp³ bonding (tetrahedral amorphous carbon, ta-C). Film thickness 1–4 µm, hardness 3000–8000 HV (approaching natural diamond at 10000 HV), coefficient of friction 0.05–0.15 dry. Color characteristic deep matte black with slight silver-gray cast in oblique light. Substrate prep critical — film replicates substrate roughness; mirror-polished substrate yields smooth black, bead-blasted substrate yields satin black. Service temperature limit ~350 °C (oxidation onset). Standard finish on premium kitchen knives, sport-watch cases, firearm slides, racing-bicycle drivetrains.

character — deep matte black, low-friction slick, hard wearing, modern-tech register.

Finish properties

  • levelmatte
  • subcategoryphysical vapor deposition, amorphous carbon
  • applies tometal

Incompatibilities

  • service temperatures above 350 °C — DLC oxidizes
  • high-load bearings without a hard substrate — film delaminates if substrate flexes

Second life

reversibilitymoderate — plating can be stripped chemically and re-plated. PVD coatings strip with NaOH or specialty chemistry; electroplated layers strip similarly.
blocks substrate recyclingno
renewabilityshop-renewable — strip-and-re-plate is the canonical path for restoring worn plating. Common services are bumper rechromers, watch-case re-platers, and PVD re-coaters (Oerlikon, IonBond).

ASTM B488 / B456 / B689 plating standards; Powder Coating Institute and industry-association literature.