Question:
After grounding trailer lights to bare metal on the frame can rust preventing paint be applied?
asked by: James Z
Helpful Expert Reply:
Yes, as long as you do not break continuity in doing so. I suggest you complete steps toward grounding trailer lights, verify proper grounding with meter or probe before addressing the area of concern. Once you have completed the process, check continuity one final time.
I prefer to use a heat shrink ring terminal such as # DW05737-1 attached to grounding wire and a self tapping screw such as # FA1131822. The use of a self tapping screw will allow continuity of ground by way of drilled hole, not simply the surface contact of ring terminal and frame.
Please see link to video I have attached.
Self-Tapping Screw - 1/4" -14 x 3/4" Long - Zinc
Hopkins Deluxe Trailer Wiring Installation Kit
Deka Ring Terminal - Heat Shrink - 16-14 Gauge - 1/4" Ring ID - Nylon Insulation - Blue - Qty 1