The processing of Polyurea

The object to be coated must first be masked or shielded all around to prevent damage and overspray to parts and/or the surroundings.

Next, the surface to be sprayed is thoroughly prepared by filling, sanding, and degreasing if necessary. In most cases, a primer layer is applied to achieve better adhesion. For objects that are already painted, priming is often not necessary. For example, the factory primer coat of a car is an excellent base for our plastic coatings.

After masking, sanding, degreasing, and priming have taken place, the spraying/coating process begins. This is done with a 2-component high-pressure machine and an airless spray gun.

The two separate components are first preheated and then pressed together under very high pressure (135 bar) at the end of the spray gun, which immediately initiates a reaction and causes the plastic coating to form within seconds! The material cures instantly and is immediately ‘walkable’.

Depending on the thickness, a second layer is often applied. After that, everything is finished, all irregularities are removed, and the surface is smoothed. Optionally, the object can be given a mist coat. This is often done to achieve a special look and feel. The degree of coarseness is also a determining factor here.

To achieve a specific color (such as a particular RAL color), we can apply a ‘topcoat’ over the freshly coated object. Standard polyurea coatings usually have a base color (black, grey, transparent). However, polyaspartic coatings can be sprayed in any desired color and are immediately colorfast.