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Speaking of rust and fiberglass.... the slow progress continues. Bondo is pretty annoying to work with so I made this mold to get the arch right. After sanding off all the excess it looks pretty good, just one more can and it'll be ready for primer and plastidip until I can get some proper paintwork done.
use tape above the arc body line so you can make a sharp line
and use a metal spreader Instead of plastic they come in bigger sizes and easier to apply the filler smoother ( for me it is :] )
Sand the top of the arc with 150 so the extra filler will grab some what
Either way you have to finish the filler at least to 150 to prime
overlap the tape 2xs so after you spread the filler you can remove 1 layer of tape and have a clean a$$ line then just block awayyyyyyyyyyyyyyyyyyyyyyyyy