SystemThree told me once that using different epoxies over each other was not a problem, so long as the first is cured. And be careful of blush, as always. Even adding over green I would think risky. Certainly mixing different brands of resin and hardener would not be a good idea.

: I am contemplating building my second strip boat this winter and I have a
: question about compatability of different brands of epoxy. I have some
: west system epoxy left from the last boat I build and would like to use
: this up, but I don't have near enough to build the new boat. I would like
: to try raka epoxy because of cost Can I use different brands of epoxy on
: different parts of the same boat?
: thanks
: Mark