Do I really need a hardener or can bondo dry on it's own? Home Depot's a long drive, after all, and I won't have time for another month or so. Edit: Bondo-Glass it's called.
just for referance, bondo and fiberglass are basicly one in the same bondo is just fiberglass resin with a hole bunch of lil balls in it, so if you want to thin bondo out(make it more liquidy) you can add fiberglass resin to it, the Bondo-glass you are refering to is probly bondo with fine strands of fiber glass in it...this is good because it makes it stronger bondo will not just dry on its own. it dry's / hardens by being heated, which can be done with a oven or autoclave, or by adding hardener I HIGHLY recommend hardener, its just easyer, you can use the red paste hardener that comes with the bondo or the clear liquid hardener that comes with fiberglass...its basicly the same thing hell you can even use some hardeners from epoxy's(i would ask about this first though) next time you go to home depot pick up a butt load of hardener....it sucks running out of it OH yeah...lots of other places have hardener too, check any local auto parts stores and hardware stores
OR the simple answer froma drunk bloke _______ bondo hardener -------------- put those two sides together.
Apparently the bondo did harden on it's own. It's a very thin layer, of course, but it seemed to become hard and not sticky. Did the 90 farenheit weather have anything to do with that? [ it sat for an hour in the sun, there's no breeze today ]
it might be "hard" but its not cured....its probly just dryed out meaning its not very strong, which could result it the hunk of bondo cracking off later on
bondo is pretty notorious about cracking anyway, or maybe people just suck at applying it, who knows, i don't really care right now though.....
80% of a good bondo job is prep work, same as paint you dont prep the surface, the stuff wont stick right, fish eye, crack or orange peel....spending 2 years around an auto painter has its effects
