T&T Tube Fender - bondo or seam sealer?
Just received T&T tube fenders and wanted to smooth and seal the gap where the sheet metal and tubes are welded before painting. I was going to buy some Bondo Gold, but saw some DynaTron Seam Sealer in a caulk gun tube. Will the seam sealer work in this application? I know it is more flexible than bondo, and is waterproof which would be a plus for preventing rust in these seams, but can it be sanded smooth for a nice finish prior to paint?
Also looking for advice on proper sequence: 1. Bondo or seam sealer on bare metal, 2. Primer sealer on Bondo or seam sealer, 3. Etch primer on everything, 4. Paint ?