Granite, marble, Corian, and quartz are now popular surfaces for kitchen counters. I assume/guess that they are really 20% epoxy filled with 80% mineral. But it takes ceramic quality blades to cut them.
I have inlaid a real stone polished granite slab into my maple butcher block kitchen counter. I notice that the commercial "granite" countertops are smooth surfaced. My real stone slab has a polished face, but when looking at it at a shallow angle, I see there are many small pits in it. I am concerned that they might catch and hold dirt or bacteria. Should I seal it? With epoxy, or what?
I do have some epoxy for wooden boat repair that covers in a thin film and takes three day to penetrate and set hard. I have used it to coat an aluminum rudder.