What is the best product to use to install resin-backed stone?
Epoxy is the safest choice. You could do a bond test with thinset to see how well it will adhere. Simply install a piece over concrete or concrete board, allow it to dry, and then see how well it is stuck. Some mortar manufacturers are making mortars they claim will adhere to resin-backed stone. If you have a relationship with a representative or a mortar manufacturer, they may have something they will warranty with it. Contacting the stone provider is always your first course of action. If you don’t get answers or test it, use epoxy.
Robb Roderick has been in the tile industry for nearly 25 years. He has worked with homeowners, builders, architects, and interior design professionals on projects in both residential and commercial settings. Prior to coming onboard with NTCA, Roderick was a member of the association for several years and is a CTEF Certified Tile Installer. He graduated from Missouri State university in 2000 and has also served in the United States Army as a medic. Roderick tours the country bringing NTCA Workshops and CTEF Educational Programs to local audiences nationwide.