92 accord rust repair...great stuff foam/bondo?

[amtrak23]

A kid who was repairing a flat on my winter Honda noticed the expandable foam I blew into the rear wheel well rust holes. He commented on how he shaved his foam down and then bondo`d right over it.



Has anyone done this? I`m thinking the foam will flex to much and cause the bondo to crack? If it seems plausable I will give it a whirl.

[Five Star]

get some wire mesh, and use a steelweld epoxy then hot patch it with bondo