Quote Originally Posted by Radu_Andrei View Post
Does this oil or grease remains dry to the touch after you apply it?
I mean oil and grease, in the form I know them, mixed with fine sawdust equals gunk. Probably for people with cleaner work spaces will work just fine.
Some online discussions suggest an aerosol lube, but they seem to dissagree a lot. I mean from 20 posts you get 20 different opinions and products. And no mention the how often do you have to apply whatever you apply.

Oh. Working with wood on a router. I was talking metalwork.
Anyway.
For a fairly dusty/dirty environment:
We would use GT85 Teflon spray from Halfords on the linear rails/screws and nuts on the automated machines at work.
Leaves them with a slippery film which repelled any dust/dirt and seemed to work well.