1. Dimpled the tank skin. I got ahead of myself, though. I should have scuffed the area for the ribs BEFORE dimpling. I can still get sandpaper between all the rivet holes, but I'm going to see if a wire wheel on my drill can rough up around the dimpled rivet holes.
2. Deburred the ribs and all the other parts. For the ribs I DID scuff before dimpling.
3. Scuffed all other areas where Proseal will be applied.
4. Dimpled the ribs.
DImpling the skin
After deburring, scuffing where sealed parts will go
