Build a Mold
Lay 3/4” thick 4’ x 8’ laminate onto a large flat work surface. Turn template upside down on the laminate. Trace template with straight edge onto laminate. For the edges of the mold, cut strips of the 3/4” laminate to the desired thickness of your countertop. Our countertop is 1-1/2” thick. Secure the edge strips with a nail gun. Caulk edges with silicone. Let caulking cure for several hours. Once that dries, remove excess caulking with a razor blade.