Yngmar
Well-Known Member
I use silicone grease. Tales of it messing up varnishing etc are exaggerated. It is easy enough to not get it on stuff you don't want it on. It is also simple enough to get it off if you do let it get on something. No need for sanding, grinding or atomic explosions, just wipe surfaces to be varnished with automotive panel wipe.
+1 Or these: