Collini is the leading group of companies in surface coating of metals and plastics in Europe.
Powder coating is a painting process in which electrostatically charged paint powder particles are attracted to the metal surface. The curing process at approx. 200° Celsius results in a resistant paint layer that is approx. 80 µ thick. The appearance can be influenced by a variety of colours, textures and special effects.
To increase corrosion protection, a CDP primer can be used as an option, in which the metal parts are immersed in a low-viscosity paint. Here also, the paint particles are attracted by an electrostatic charge and adhere evenly at a layer thickness of around 25 µ to the workpieces. They are then fired at a temperature of around 180° Celsius.
In addition to the high corrosion protection values, the advantages of both methods lie in the homogeneous layer distribution with no trace marks or droplet formation. In combination with hot-dip galvanising, powder coating provides maximum corrosion protection with the best design options.
