For an undermount sink, proper installation and sealing is crucial to prevent leakage and to make sure the sink is properly supported. Undermount sinks are typically attached with a two-part epoxy adhesive and sealed with silicone caulking around the perimeter. Due to differences in countertop materials such as granite, soapstone, marble, laminate, wood or concrete, we strongly recommend you consult with one of our customer service representatives so they can provide you with the appropriate installation instructions.