Checked out a couple of discussion groups, can’t find anyone else who has posted specific info on this. There is quite a bit of stuff on finishing teak for exterior use, but not interior. I did a post on a different woodworking site, but there seemed to be some confusion there about what non toxic meant.
I built a small Krenov-style wall cabinet out of teak. I handplaned/scraped all the surfaces, no sanding, so the pores are quite open, not filled with dust. I was thinking of just leaving it unfinished, but am concerned the pores would get filled with dirt over time.
As an alternative to just leaving it unfinished, I am considering rubbing on a non toxic finish such as beeswax, pure tung oil, Tried and True Varnish (mostly linseed oil I believe), or shellac. Or one of these with the beeswax on top.
There was an older post on teak here in Knots that mentioned putting down boiled linseed oil followed by shellac. That sounds good to me, but I’d like to know if anyone else has had any success with non-toxic finishes on teak.
One of the problems with teak is that it is naturally quite oily, I can feel the oil readily on my fingers after handling it. So I am concerned about adhesion over the long term for these finishes. Does anyone have any experience with any of these finishes on teak for interior use?
PS Here’s how I tell something is toxic. If it has a skull and cross bones on the package, it’s toxic.