How to Improve Adhesion to Helmet Visors Using Corona Treatment
A global manufacturer of helmet visors needed a faster, more consistent, and more sustainable way to prepare surfaces before coating. Their existing process relied on a primer step to secure adhesion — but it was time-consuming, labor-intensive, and involved costly chemicals.
To optimize production, the company integrated Tantec’s RotoTEC-X corona treatment system, specifically designed for the uniform surface activation of curved plastic components. The system ensures even energy distribution and stable surface activation across the entire visor — creating optimal conditions for coating adhesion.
After implementation, the improvements were significant:
- Process time reduced by 92%
- Process cost reduced by 96%
- Remarkable improvement in surface wettability
- Stable and repeatable activation across multiple measurement points
The enhanced hydrophilicity after corona treatment allowed the company to completely eliminate the primer step, cutting out a costly and environmentally challenging part of the process.
Surface stability was confirmed by only a slow increase in water contact angle after 24 hours, demonstrating the robustness of the treatment.
“The RotoTEC-X has become the workhorse of our surface preparation,” the customer notes. “It helped us reduce process time, cut costs, and achieve reliable adhesion without the need for primer.”
Result: Faster cycle times, lower cost, and a cleaner, more efficient surface preparation process.