Topic: Atmospheric Plasma Treatment. Bonding of LED headlights and tail lights. Plasma pretreatment of housings, covers, lenses. Bonding and sealing of plastics like polypropylene (PP) and polycarbonate (PC).
Openair® Plasma – for tightly sealed, cost-saving bonding of headlights and tail lights
Modern
headlights using LED technology last for
the lifetime of the vehicle, thus eliminating the need to change
bulbs. To ensure this longevity, they must be effectively protected
to keep all moisture out. When bonding headlights and tail lights
made of polypropylene (PP) and polycarbonate (PC), the adhesive must
therefore have excellent sealing properties as well as providing
reliable adhesion.
Precise
localized pretreatment with Openair® Plasma activates the non-polar
materials in
all critical areas, ensuring reliable bonding and long-term sealing
of the headlights.
Openair® Plasma pretreatment of headlights is one of the most successful industrial applications of plasma technology. Headlight manufacturing would be unthinkable today without this technique.All leading manufacturers of headlights use Plasmatreat’s Openair® Plasma technology.
Advantages of Plasmatreat's Openair® Plasma pretreatment process:
- Highly effective, uniform surface activation without any heat build-up in the treated surface
- No deformation of housings
- Savings on material, as wall thicknesses can be reduced
- Pretreatment of the entire joining surface (including root and wall areas in grooves)
- Uniform activation also on surfaces of metalized plastics
Partners & References
Hella Australia Pty Ltd.Quality assurance with Openair® plasma
In 1995, Openair® plasma technology was used for the first time in standard production of automobile headlamp housings in Germany. Today, it has become an established part of applications around the world. At HELLA, Australia, the high process safety of the plasma process is especially valued.
