Edit post

Edit your reply below.

Post Body
Enter your post below.
IMHO, there is something else at work when it comes to sand on the rails.  Back when I lived where there was snow and ice, kitty litter was purchased even though I had no cats; it was kept in the car.  When stuck on ice, which is slippery - the essence of clean, a little kitty litter spread in front of and back of the wheels provided the necessary traction to get the car moving.  Rather analogous to paint and shiny, polished, really clean surfaces; the surface must have 'tooth' for the paint to grab hold of. I have always thought that the sand textured the rail and produced a non-slip surface.  Masons always use sharp sand, not the beach stuff which has been polished by the ocean waves. Just my two cents.  Art
Tags (Optional)
Tags are keywords that get attached to your post. They are used to categorize your submission and make it easier to search for. To add tags to your post type a tag into the box below and click the "Add Tag" button.
Add Tag