Plasma pretreatment modifies the surface structure of plastics with limited adhesion, such as polypropylene or polyethylene. Creating more surface energy yields an efficient increase in adhesive behaviour.
At the same time, the process enables the fine cleaning of visually undetectable impurities, the so-called adhesive layer. This is a virtually emission-free pretreatment process results that is more economical for the customer as compared to the more costly use of primers (adhesion promoters).
Almost all of the plastics have a tendency to becoming electrostatically charged on the surface. As a result, impurities such as dust particles from the ambient air are inclined to settle on the surface of the painted goods. We counteract this negative effect using the ionisation cleaning process which simultaneously removes pre-existing impurities in the form of dust particles.