Pool Table Bees Wax is the best product to use when covering the seams where the pieces of slate come together. Use a propane torch or heat gun to melt the beeswax along the seam, then with a metal paint scrapper take off any excess of wax left on the slate surface until is smooth and flat. Beeswax is also good to fill any cracks or screw holes on the slate.
4oz Stick of BeesWax
Ideal for sealing slate seams on pool table
Can be used to fill in chips and cracks on slate