So I'm sitting around this morning wondering what lube to use on excalibur exomax rail. Well it comes to me, I have this food grade silicone. We use it at work to spray the table saw top down, nice and slick. I also spray my meat grinder parts with it, prevents rust.
So I clean the rail, spray a little on a cloth and wipe the rail down. Seems to work great.
The silicone lube I have is made by Share Canada. It says use on any surface - metal, glass, rubber, plastic, painted surfaces, and fabrics.