 Hella, a leading automotive component supplier for lighting technology and electronic products, was the first customer to purchase the plasma system for pretreating their vehicle headlamps. With these components, the adhesive bond between the polycarbonate lenses and their polypropylene housings must satisfy extremely strict sealing requirements. Even the slightest leak would result in moisture penetration leading to impairment of the headlamp lens, which in turn would adversely affect the beam angle of the light.