Concrete For Countertops Diy. If you need to have a cutout in your countertop for a cooktop or sink, measure and mark it on the mold's base. If so, the form you build must include cutouts for the sink itself and (if necessary) for a faucet.
Pete Sveen is a DIY enthusiast based in Montana. They had to special order the mix for us and it arrived within a week. Use a mix for the color and additives that is especially designed for countertops or floors.
Much like a sidewalk or patio, the wet concrete is poured into forms, finished on top with trowels, then left to cure.
They had to special order the mix for us and it arrived within a week.