COATING PROCESSES

Hallmark Industrial Services employs many different metal spraying and welding techniques to ensure you get the highest quality coatings and overlays available. We select the coating material and process based on your requirements and the application of your part. Our primary coating process are:

• HVOF Spray System - High Velocity Oxygen Fuel uses high pressure liquid fuel and oxygen to deposit a very even uniform coating. HVOF is used for many different metallic coatings, although carbides are the most commonly used metals.
  
• Plasma Spray System - This process uses a plasma flame to produce a dense high quality coating. The most commonly sprayed coatings are ceramics.
  
• Arc Wire Spray System - AWS is used to spray materials on a contour. The most common materials are 400 and 300 series stainless steel, low and high carbon steels, nichrome, monel, nickel, bronze A, brass, copper, aluminum and zinc.
  
• Welding Overlays - Used to combat a wide range of problems from corrosion to gouging/galling to low-impact wear. Application methods include MIG, TIG, and plasma welding. A wide range of materials like hastelloys and stellite are used.
  
• Combustion Powder Spray System - This process applies a smooth deposit on any contour. When used to deposit spray and fuse alloys, the deposit is fused to the base metal, resulting in a metallurgical bond between the overlay and the base metal.