Metallizing Coating Services

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Metallizing Coating Info & Benefits

Metallizing is the general name for the technique of coating metal on the surface of non-metallic objects.

Techniques for metallization started as early as mirror making. In 1835, Justus von Liebig discovered the process of coating a glass surface with metallic silver, making the glass mirror one of the earliest items being metallized. Plating other non-metallic objects grew rapidly with introduction of ABS plastic. Because a non-metallic object tends to be a poor electrical conductor, the object's surface must be made conductive before plating can be performed. The plastic part is first etched chemically by a suitable process, such as dipping in a hot chromic acid-sulfuric acid mixture.

  • Metallizing spray coatings have the ability to be built up to a greater thickness than the other coating processes.
  • Metallizing was the first type of thermal spray process, developed in Europe around 1910.
  • In an emergency metallizing can be used as a build coat for the Plasma or HVOF spray process when a heavy build up coat is needed and there is not time to remanufacture.
  • Metallized spray coatings are the most economical of all the different spray systems.
  • Metallized spray coatings are considered a "Cold Spray" process, meaning that it does not get the base material over 300 degrees F.

Applications For Metallizing Coatings

Compressor Repair

  • Piston Ring Grooves
  • Unloader Housings
  • Piston Rod Packing areas
  • Rider Bands

Pump Repair

  • Bearing Journals

Materials & Capabilities for Metalized Spray Coatings

Metals - #2 (420SS), #5 (202SS), 316SS, Aluminum Bronze, Monel, Molybdenum

Coating capacity (OD) maximum length 15', maximum diameter 30", maximum weight 1500 pounds.

Typical coating thickness is .025", depending on the material being sprayed and the part geometry thickness of up to 1/8" can be achieved.

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