: Hi folks,
: has somebody tried talkum powder as a thickening agent in epoxi.
: Sounds cheaper than microballoons and cabosil or silica powder and should
: make a mixture which comes out smoother, less sanding.
: Thanks from Germany while building the guillemot s&g.
: Joaquin

Hi Joaquin

Yes, it should work just fine. I don't know why I haven't seen it here before, or why I haven't mentioned it. We use to use it on nearly all our model airplanes years ago. We mixed it with Buterate Dope and aplied it to either silk-span or Silk. That was in the days before Monokote! I would give it a try and as in all other new items, test it out on some scraps first. As I recall, talc was easy to sand, but with epoxy, it probably won't be any easier than the epoxy mixed with flour or woodflour. Hope that helps.

Rehd