Allow grout to dry for a minimum of 72 hours before applying sealer.
Use masking tape to mask off areas where you do not want sealer.
Vacuum your countertop with a soft-bristle vacuum attachment. Then wipe your countertop down with a tack cloth to remove all dirt and dust. The countertop must be bone dry.
Pour limestone sealer into a shallow pan. Paint the countertop with sealer using your soft-bristle brush. Evenly distribute a liberal amount of sealer.
Allow the sealer to penetrate the limestone surface for an hour. Apply a second coat. Allow to cure for 24 to 30 hours if indoors. Allow to cure for 48 hours if outside.
If properly applied, your limestone sealer should last for a minimum of three to five years.
Things You Will Need
- Limestone sealer (such as Bullet Proof Stone Sealer)
- Masking tape
- Vacuum with soft-bristle attachment
- Tack cloth
- Soft-bristle paint brush
- Wipe up all spills immediately. Do not allow acidic substances--such as ammonia, vinegar or bleach--to sit on a counter. Do not use abrasive cleansers or scouring powders.