Powder coating of metallic components
For a long-lasting result with powder coating, the correct pre-treatment of the metal surface is extremely important with this type of coating, otherwise there is a risk that the selected powder will not adhere correctly. When powder coating, the components are first carefully degreased, cleaned and, if necessary, mechanically pretreated in several steps.
The subsequent application of conversion layers (e.g. by iron phosphating, pickling or chromating) enables good adhesion for the subsequent powder coating. In the conversion coating, a special aqueous treatment solution reacts chemically with the metallic substrate. It not only ensures good adhesion, but also offers good protection against corrosion.
During the actual powdering process, powder particles are electrically charged and applied to the component using a powder spray gun. The electrostatic charge ensures that the surface is evenly wetted. The powdered surface is then baked at just under 200 degrees to make it durable.
Arnold does not have its own powder plant, but has a broad network of long-standing partners with whom any desired color and dimension of powder coating can be realized. Arnold has been building powder-coated components and systems for its customers in this way for over 15 years.
Would you like advice on powder coating your product? Please do not hesitate to contact us.
