It won't burn like cotton. So a wick lasts for months.What's the benefit of silica again? I've only encountered it in those clear, see through (I think disposable) tanks and I absolutely hated those. It would be interesting if silica were useful in another application though, as I simply have no experience with it other than those tanks, and that was a while ago.
Thanks,
Anna
I did a search, and I can't find .8 mm hollow silica. Lowest I could find was 1.5. Yes, my rebuildables are all Kayfuns.
0.8mm is string, (not hollow) so probably not the best in a KF. Still think you would be better off looking for ecowool.