PVD Coating

DSP Leading Advanced PVD Technology

DSP uses advanced Physical Vapor Deposition (PVD) coating technology based on advanced high vacuum technology to produce elegant, beautiful colors and durable arc-ion plated stainless steel products. This surface treatment process allows for wear resistant coatings by 10 times stronger than normal stainless steel products and lasts longer than any other coloring process known to date. The DSP stainless steel products are characterized by their color and gloss which are semi-permanent and they are strong enough to withstand acid rain and contaminants. They have greater resistance to fire resistance and resistance against chemicals than any other exterior finish materials.

Advantages of PVD Coating


Large resistance to rust and scratches


Various colors available, luxury and elegant colors


Excellent durability of coatings and colors (semi-permanent)


Eco-friendly process


Saving maintenance and replacement costs

DSP’s PVD Coating

Physical vapor deposition or PVD is a process of producing metal vapor that can be deposited on conductive materials as a thin, highly pure metal or alloy coating. The process is performed in a vacuum chamber at high vacuum (10-6torr) using cathode arc source. Single or multiple layer coatings may be applied during the same process cycle. Besides, metal vapor can be reacted with various gases to deposit, nitride, carbide, or carbonitride.

PVD coating machine

Titanium coated vacuum chamber (vacuum: 7-9 × 103)

titanium coated vacuum roll to roll machine (vacuum: 7-9 × 103)

State-of-the-art PVD method

  1. Stainless steel plates are processed in sealed containers that can hold hundreds of parts at a time.
  2. The air is pumped out of the container, creating a vacuum atmosphere equal to one billionth of air pressure, and blocking the pressure present in the space.
  3. In the case of argon gas, it enters the container and then becomes converted into particles smaller than an atom. These particles are sprayed onto the surface for heating.
  4. Particle spraying and the heat generated completely clean the surface of the plate.
  1. The injected particles adhere to titanium and have extremely resistant metallic properties, which evaporate the produced titanium metal and atoms and are deposited on the surface of the object to form TiN, TiC and TiNC films. Because of their high density and compact texture, the TiN, TiC, and TiNC films have high wear resistance.
  2. Thin films covering layers further improve gloss and protect against corrosion and discoloration.