IIRC all plant oils become sticky/gummy, but the Tsubaki oil seems to only do so on blades. I only ever used it on bonsai pots because I use a different oil for my razors. Perhaps because the bonsai pots are exposed to the elements, the oil reacts in a different way, I'm not sure.
Another bonsai practitioner. Its nice to know there are a few of us about.I have been working with bonsai for about 12 years.Although my collection has dwindled down to only a few trees at the present.Most are in the ground.