What is a sealer and how do I know when it it is time to apply one to my countertops?

A sealer is like a coat of armor for your countertop. Natural stone can be dense or porous, and is absorbent to some degree. Stones that have more swirls or veins tend to be more porous and absorbent. Sealer will decrease the opportunity for something to stain or harm your surface. A protected stone will be easier to clean, resist staining, and provide a safer and healthier environment. By sealing your stone, you will more easily retain the natural beauty of the surface.

To test your countertop’s sealant, apply a drop of water at least ½-inch in diameter to the stone and let stand for at least 15 minutes. Cover with a glass to reduce evaporation. If the stone does not darken then it is probably sealed against water-based stains. To ensure the beauty and longevity of your stone, we recommend sealing your stone yearly.

Posted in: Stone Care