• HOME
• SERVICES
  • Plating Electroless Nickel / PTFE
  • Hard Chrome Plating
  • Tungstenite Dry Film Lubricant
  • Brazing Water Cooling Channels
  • Plasma Spray Coatings
  • Vacuum Heat Treating and Brazing
  • Physical Vapor Deposition
• ABOUT US
• ARTICLES
  • Tool Steel
  • Multilayer Pvd Coating
  • Tungstenite Dry Lubricant
• CONTACT US
• QUALITY POLICY

Tungstenite is the chemical name given to the compound tungsten disulfide. In appearance, it is a very fine black powder. The process was developed in the early 1970's for aerospace applications. The unique properties of Tungstenite allowed it to withstand the severity of space missions. Tungstenite has found extensive applications within the plastic molding, die casting, textiles, and food processing industries where sticking and adhesion are a problem and wet lubricants are intolerable. It is also a highly effective lubricant for use in vacuum chambers and clean rooms where galling and seizing are a problem on fasteners, chains and slides.

PROCESSING
The process is performed at room temperature and atmospheric pressure. There are no binders involved, and there is no curing required. Once the parts are coated, they are ready to use. Tungstenite is a dry film lubricant. It does not resemble a coating as the deposit is only 0.4 - 0.5 micrometers thick. More accurately, Tungstenite is a surface modifier, lowering the coefficient of friction of the surface of the material being coated. Depending on the material and its surface finish, the coefficient of friction can be as low as .03.

As a surface modifier, rather than a coating, Tungstenite will not peel or flake off. Applied by a controlled source of high pressure air, Tungstenite forms molecular bonds with the substrate. However it does not bond to itself, and therefore does not build up on the surface.