The corona surface treatment of plastics before coating, bonding or printing is aimed at improving adhesion. Pre-treatment is often required so that enhanced wettability and optimum adhesion of the coating are achieved.

The SpotTEC offered by Tantec permits simple corona surface treatment of surfaces for three-dimensional moulded or extruded plastic parts, profiles, etc. with low investment and running costs.

The SpotTEC is based on the principle of high-voltage discharge in the high-frequency area. A blower presses the discharge, which is established between the two electrodes integrated in the discharge head, against the substrate to be treated, thus obviating the need for a counter electrode. The SpotTEC can be integrated easily and quickly in new or existing production lines.

The corona surface treatment system is available with a single or double electrode head; other versions are available on request.

Spottec High-frequency Spot Generator from Tantec