Countertops made with stone materials give kitchens and bathrooms a natural look. Options include stone slabs, stone tiles or suspended pebbles. For a textured feel, opt for suspended pebbles. To create a suspended-pebble countertop, embed small stones, such as river rocks, quartz aggregate or granite aggregate, in a layer of resin. The resin fixes the pebbles while also creating a smooth, durable and easy-to-clean surface. Install aggregate-based countertops over a wood or cement board countertop substrate or over an existing laminate countertop.
Wash the aggregate with soap and water and allow it to dry.
Sand the countertop if it is laminate. Sand until the original sheen is removed and wipe away the sanding dust with a damp sponge or tack cloth.
Paint the countertop with epoxy primer. Allow the primer to dry.
Cut lengths of wood countertop trim to match the dimensions of the countertop. Cut the ends on 45-degree angles with a miter saw to create frame-like, mitered corners. Use trim that is wide enough to extend above the surface of the countertop to a height that is just taller than the thickness of the larger pieces of aggregate. Sand the rough cuts smooth.
Apply beads of construction adhesive to one side of each piece of trim. Stick the trim boards in place and secure them with finish nails placed every 10 inches.
Paint the countertop's surface and the all exposed sides of the wood trim boards with a thin coat of resin.
Fill a bucket with the aggregate. Pour in resin and stir the aggregate until fully coated. Pour the resin-coated aggregate onto the surface of the countertop and spread it evenly with a plastic putty knife.
Pour resin on top of the aggregate layer, allowing the resin to self-level and fill the remaining space until it sits even with the top edge of the wood trim. If not self-leveling, use a rubber squeegee to spread the resin. Allow the resin to cure.
Apply a bead of caulk along the back edge of the countertop, where it meets the wall, and run your finger along the bead to smooth it down.