That's really odd - as far as I was aware, only some Kalotermids had "sticky feet". I suppose a barier would work, but I'd be careful about what I use - because they're so delicate, I'm sure that some barriers could really bother your termite's epidermis.
Yeah. I would probably not be able to use olive oil (which I use for ants) or most products. Not even baby powder since that stuff probably clog them up. So I dunno what I'd use.
I'm hoping polycarbonate is slippery enough that they can't climb up. Luckily they seem more interesting in climbing wood than plastic...but that one termite really wanted to explore lol.
The best part with this colony is that they are really ant-like. They explore a lot on the ground, and they are super active. I always see termites exploring and doing stuff, or going to other pieces of wood.
As for being able to climb, that probably narrows species down quite a bit.