Edges concentrate the electric field, so they collect more powder than the middle of a panel. The extra film shows as a frame of different gloss, texture or color, worst on metallics, candies and textures. Lower kV, more gun distance and fewer passes on the edges reduce it.
Heard on the job
Panels are picture framing bad, edges are a shade darker, back off the kV on the autos.
Also heard as
- framing
- edge build
Related terms
Film build
The thickness of the cured coating, usually given in mils or microns.
Wrap
Charged powder curling around edges onto the back of a part that the gun never pointed at.
kV
Kilovolts, the voltage setting on a corona gun that governs how hard it charges the powder.
Candy
A tinted transparent topcoat sprayed over a bright base so the color glows with metallic depth.