Plasma etching, improving bond strengths paint adhesion

How plasma etching / structuring works

SEM-pictures of a POM-surface before and after structuring
via plasma etching.

Plasam etching of plastics before ansd after

SEM-pictures of a POM-surface before and after structuring via plasma etching.

The structuring of polymer surfaces by plasma technology
is achieved through longer reaction times. During this process
smallest amounts of material are milled from the plastic surface.
The milling of material and therefore a resulting surface wrinkling
supports adhesion coating material by providing a larger surface for
bonding. With high-performance plastics like PTFE, POM, PA and PEEK
plasma-structuring of the surface is necessary to improve adhesion.