As the robot travels the perimeter of the glass, the applicator tool uses pressure to dispense droplets of clear primer through an automatic valve. The tool is followed by a felt wick, which spreads the primer to a specific width and film build thickness. The black primer is then applied through a separate automatic valve into the back side of the felt at the application point, where it is spread to the specified width and film build. A reel-to-reel device is used to index a clean section of felt for each glass.
The standard system consists of clear and black primer dispensing systems, a reel-to-reel applicator tool with pneumatic valve pack and a system controller.
- On-line detection verifies application and volume of primer dispensed.
- Material recirculation and nitrogen blanket prevent material degradation.
- Built-in compliance in applicator head
delivers thicker film build.