Seal your slate seams like a professional. This wax is a special blend of bees wax and resin. It hardens like a rock and is an excellent sealant for seams, holes, and chips. A propane blow torch is needed to apply this type of wax.
One stick of wax will do multiple tables and is reusable.
For large chips or holes use the slate patch.
Remember, the bolt holes around the perimeter of the table generally do not need to be filled.
This is a far superior product to any type of powder mixes as it will not permanently fill the diamond honed grooves on the table. With this product you can simply heat the wax with a torch and start over. No need to sand which is generally bad for the grooves. Keeping the grooves unaltered is what keeps the table playing level.