: Hi Craig,

: I would be cautious on mixing the materials. Epoxy will bond to polyester or
: vinyl ester but the opposite does not work. I would stick with epoxy based
: material or do a test first. Way too much work to this point to have
: surprises.

: Best,

: Reg

Hi Reg,

On cheapo dinghys I've built in the past I've used bondo that works fine, bonds ok to the wood and the epoxy covers it just fine.

Downside is the filler in automotive bondo is talc and it sucks up water like a sponge, so the filler needs to be carefully sealed with epoxy so that water can't get to it.

Bill H.