🧪 What is Cataphoresis (KTL)?
Cataphoresis (or cathodic electrodeposition) is a cutting-edge electrochemical process that allows a thin film of paint to be deposited on the surface of metal products.
By immersing the part in a tank where an electric current is applied, resin particles are attracted and deposited onto the metal with extreme precision. The result is a total insulating barrier that separates the steel from the external environment, stopping any oxidation process at its source.
🔬 Epoxy or Acrylic: Which to Choose?
The effectiveness of the treatment depends on the nature of the resin used. At Zarri, through our partners, we manage the two main variants based on the intended use:
- Epoxy Resin: Known for exceptional chemical and mechanical resistance. It is the ideal choice for components requiring extreme anti-corrosion protection that are not directly exposed to UV rays (often used for underbody or internal parts).
- Acrylic Resin: Offers excellent resistance to atmospheric agents and maintains brightness over time, making it suitable for visible components.
🏗️ Final Coating or Primer Base
One of the greatest strengths of cataphoresis is its application flexibility:
- Total Finish: It can be used as a final protective treatment thanks to its good aesthetic qualities and thickness uniformity (reaching even the most hidden points and cavities).
- High-Quality Primer: It is often used as a primer. In this case, the cataphoresis layer prepares the surface for subsequent powder or liquid painting, guaranteeing perfect adhesion and a double barrier against corrosion.
📞 Are You Looking for a Uniform and Resistant Coating?
Cataphoresis is the ideal solution for complex geometries that need total protection.
Contact the Zarri technical team to evaluate whether epoxy or acrylic cataphoresis is the best choice for your supply specifications.