Cataphoresis
An efficient solution
against corrosion
Among the various surface treatments we offer, cataphoresis is one of the best solutions for effectively fighting corrosion. This treatment consists of electro-chemically depositing an epoxy-type base on a metal part. The part is immersed in water-soluble painting baths which are deposited by a difference in polarity. This process guarantees a uniform deposit of the material on the immersed part, and because of the immersion it is one of the few treatments that can protect the inside of hollow bodies such as tubes.
Key figures
- 2 cataphoresis lines
- 500 hours salt spray
- 100 weight of parts that the lines can support
- 20 µµm material thickness as standard
A complementary solution
Within the Groupe AIM, all stages of the cataphoresis process are automated in line. The parts are hung on a conveyor belt, held on a frame, chemically cleaned by spraying and then immersed in a water-soluble painting bath. The parts are then transported to an oven where the painting is polymerised at a temperature of approximately 180°. Our two cataphoresis lines allow us to treat large and small parts.
This treatment has many advantages. It allows the entire part to be covered, including hollow bodies. The layer deposited is fine and homogeneous. Finally, this solution has good mechanical and anti-corrosion properties. This process is very often used as a primer to reinforce the anti-corrosion protection combined with a powder or liquid paint finish.
Quality control
The quality of our products is of paramount importance to us. We continuously measure and control the performance of our surface treatments to ensure we provide the best possible service to our customers. In addition to process monitoring, our laboratory allows us to check the conformity of the coating to the technical specification of the product. Checks on adhesion, thickness and even BS resistance are carried out on an ongoing basis
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