Quote: its best to treat the bare metal with a good epoxy sealer or primer that was made for bare metal before putting the bondo on. is it just a pin hole youre trying to fill? bondo was made to fill inperfections in the surface it wasnt really made to fill holes,jeff
I your going to fill pin holes I would use mar-glass before I would bondo... but If it was my car I would cut it out and use a metal patch....
