smoothing firewall

[ricer]

over the weekend i started filling in the firewall holes i am not using on my car (it may not be the best job but i am a newb to welding ). It may not have come out picture perfect but i am happy with it and with a little skim coat should be able to sand perfectly smooth. The more i look at it i thought i would be happy with the two panel seams showing (from pass fender bolt to wiper motor seam) but i was wondering if there is any product that i could put in there to make that smooth as well without cutting out the entire thing and redoing it....
before


After

[Rick D]

Do you mean to fill the body seam on the fire wall?? It will flex to much to just fill it, it will crack. You could make a filler piece of metal and weld it in to fill the gap, but if I were you I would just cut it out and start over with a piece of 16 gauge steel.