The Bonito boat I just purchased has some bolt holes in a few places where the PO had mounted something. Is there a good two part epoxy patch in tubes that I could use to fill in these holes (preferably white) Thanks everyone
MarineTex and PC-11 are both excellent two-part epoxies for marine use. I don't know if either come in a tube, though... I can find PC-11 at my local ACE hardware store; I've seen MarineTex available online (from iboats.com, of course!).
Polyester putty is fine as well. Not sure where you will find a tube or it though. There used to be epoxy sticks with resin on one side and hardener on the other. Not sure I would use that except in an emergency.