karran's unique solid surface sinks can be seamlessly undermounted to any laminate countertop. their sinks are made from a specially formulated acrylic resin and reinforced with a polyester/fiberglass mix on the underside for added strength. the undermount sinks are stain resistant, in fact nothing has ever been found that will permanently stain the surface. because of their virtually impenetrable, non-porous surface, dirt and bacteria sit on the surface, creating an easily cleaned, sanitary sink. the sinks are also resistant to thermal shock, impact, heat and scratches. karran undermounted sinks offer a seamlessly smooth transition from countertop to sink.