The Indirect Discharge Electrode method is one approach among others to increase the surface tension of the polymers, in other to achieve better adhesion of paints, glues, inks or varnishes.  Description

The Indirect Discharge Electrode produces a surface treatment by CORONA EFFECT. The system is designed based on a patented method which uses pin discharge effect to obtain a highly concentrated electrical field.

The dimensions of an indirect discharge electrode are according to the width of the material and the speed.   

The height of the electric arc is approximately 10mm and it slightly touches the surface of the plastic materials under treatment creating a surface tension which improves the adherence of paints, glues, inks or varnishes