How do you join two pieces of marble together?
How to Glue Marble Slabs Together Clean the surface of both stones with a soft cloth dipped in denatured alcohol. Mix one part adhesive with one part hardener or catalyst. Spread the glue onto both marble pieces using a Popsicle stick. Clamp the two pieces of marble together with a vice grip, if possible. Allow the glue to dry for 24 hours.