Gunmetal Grey (PVD) Finishes: Vapor Sputtering for Modern Architecture
Engineering Overview: Technical overview of Gunmetal Grey and Graphite PVD finishes on brass lock cylinders, detailing micro-texture and scratch resistance.
Technical & Engineering Specifications
| Substrate | Satin Bead-Blasted Solid H59 Brass |
|---|---|
| Finish Name | Gunmetal Grey / Graphite PVD (TiCN) |
| Film Hardness | 2000 - 2400 HV |
| Color Stability | 100% UV & Solvent Resistant |
| Corrosion Resistance | ASTM B117 > 480 hours |
Contemporary Industrial Aesthetic
Gunmetal Grey (also known as Graphite, Anthracite, or Titanium Black) has become a signature architectural hardware finish in luxury residential and boutique commercial design.
Deposition Technology
- Bead-Blasted Substrate: Extruded H59 brass bodies are micro-blasted with fine glass beads to establish a uniform satin diffuse reflection.
- Titanium Carbonitride (TiCN) Sputtering: Vaporized titanium reacted with carbon and nitrogen gases in a high-vacuum chamber forms a rich charcoal-grey ceramic layer.
- Durability: Achieves 2000+ HV hardness, resisting keyway wear and chemical discolouration over 100,000 cycles.
Frequently Asked Engineering & Selection Questions
Q1: How is the Gunmetal Grey PVD finish created?
By depositing Titanium Carbonitride (TiCN) in a high-vacuum chamber over a bead-blasted brass substrate, creating a hard, charcoal-grey ceramic layer.