Electrophoretic Coatings
At Anochrome Ltd. we supply cathodic e-coating using a BASF paint process. This high-quality finish offers superior corrosion-resistance and durability, making it particularly suitable for long-term protection.
We can offer duplex or multiple layer coatings, to provide the precise protection levels required, making us a one-stop shop for our customers. For example, combination finishes, such as a zinc, or zinc nickel base with e-coat, and a powder coat on top.
How it Works
Electrophoretic coating works on the principle that opposite charges attract. During e-coating, a current is applied to create a voltage between a conductive part and an electrode. When immersed in the paint tank, the electrically-charged paint particles coat the conductive part.
This deposition is self-limiting and slows down as the applied coating electrically insulates the part. As the area closest to the electrode becomes insulated to the current, solids are forced into more recessed, bare metal areas to provide complete coverage.
This phenomenon is known as ‘throwing power’ and is key to the electrophoretic coating process. It results in an even deposit-thickness in recesses, on corners and edges. This then provides excellent corrosion protection.
E-coating Benefits
- Excellent corrosion protection for equipment exposed to harsh environments, achieving up to 1000 hours salt spray (ASTM B 117).
- Coatings are both protective and decorative.
- It offers consistent coverage and protection, even in hard-to-reach places.
- A cost-effective and sustainable choice of electrophoretic coating methods.
- It minimises overspray in large-scale production.
- E-coatings are environmentally-friendly: When using water-based coating, it has fewer volatile organic compounds (VOCs). They are also free from heavy metals and hazardous air pollutants (HAPs).
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