How to Seal a Countertop

Tools and Materials

Tools

Materials

Note

Product costs, availability and item numbers may vary online or by market.

How to Seal Stone and Concrete Countertops

By sealing your countertops, it protects the surface by forming an invisible barrier that can resist stains, oil and water. Use a sealer that's formulated for your stone or concrete surface. It's food safe and won't change the look of your countertops.

Learn how to seal quartz countertops, marble countertops, granite or concrete in three simple steps.

Instructions

Use a cleaner that's specially formulated for stone, tile and grout. To remove dirt, grime, build-up and grout haze, spray the cleaner on the countertop and let it sit. The dirtier the surface is, the longer the cleaner will sit. Instructions can vary with cleaners, so follow the directions for your particular product. Use a brush or sponge to clean the surface. Then wipe it off with a microfiber cloth.

How to Seal a Butcher Block Countertop

Butcher block countertops also need to be sealed, but they require a different method.

Learn how to seal bare or stained butcher block countertops in five steps.

Instructions

Bare Countertop
If the butcher block countertop is bare wood, use a 220-grit sand block or sandpaper to create a smooth finish. Wipe the surface down with a damp cloth and let it dry.

Stained Wood
If your butcher block countertop is already stained, then you'll need to ensure it's clean and dry. Clean stained wood using a soft sponge, mild dish soap and warm water. Next, sanitize the wood by using spraying a vinegar solution (1 part vinegar to 2 parts water). Let it sit for 10 minutes and then wipe it down with a microfiber cloth. Let it dry.

Need to Know

How do you know if it's time to seal the butcher block again?

Place a couple of drops of water on the surface. If it sits on top of the butcher block, the seal is still good. If the water sinks in, it's time to seal it again.