Wait so let me get this straight, no Bondo Body filler hardener (the red stuff in a tube) but compensate for it with twice as much liquid hardener? Ex. If im making a mud mix and i have 1 tablespoon of reisen (7 drops of hardener) then for another 1 tablespoon of mud i add another 7 drops?
Also,
Has anyone seen the sun activated bondo? just curious to see if this would work in this case.