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Electrocoat

PPG Industries has been providing electrocoat products to the automotive industry for over 40 years protecting over 300 million vehicles in this time. Our full line of cathodic dip primers are used by all major automobile manufacturers worldwide.

PPG has pioneered most important electrocoat product and process advances including:

  • Ultrafiltration of paint to increase efficiency
  • First commercialization of cathodic electrocoat
  • Designed and installed the first anolyte system to minimize waste
  • Introduced 6th Generation Enviro-Prime® lead-free cathodic epoxy

History


PPG was active in the first research directed toward the development of a electrophoretic paint in 1957 at the Ford Motor Company under the direction of Dr. George Brewer. This research was designed to develop a method for improving corrosion protection on hard-to-reach parts of car bodies. PPG filled the Ford Wixom tank in 1964 with anodic electrocoat.

Automobile manufacturers were well aware that rust occurred in interior recessed areas, also noting that flat exposed areas, such as roofs, were often rust free. Although dip coatings penetrated into the recessed areas, they were usually washed off by solvent vapors during baking. Thus, Dr. Brewer's group strove to create a paint in which the solvents could be removed from the film during the application process. Their work led to the development of electrocoat.

Although market growth for electrodeposition steadily increased immediately after introduction, not until 1973, when cathodic products were introduced, did the market literally "boom". In 1965, only one car in 100 was primed with electrocoat; by 1970, ten of 100 were electrocoated; now, almost 95% are primed with cathodic electrocoat.

Click here to read about PPG Electrocoat firsts.


Products


Our award-winning products are based on state-of-the-art technology and bring added value and lower overall operating cost to the automotive marketplace.

Enviro-Prime
Enviro-Prime® 2000 global lead-free electrocoat is the product of choice for all automotive assembly plants and the next logical step for those currently using fifth generation lead-containing products.

 
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