Granite, an igneous rock made from feldspar and quartz, is often chosen for countertops because of its durability and variety of colors. While granite countertops commonly last a long time, you may notice the occasional chip or crack, which likely occurs from not sealing the countertop. However, a chip or crack doesn't mean you need to replace the counter entirely. Follow these tips to fix a damaged granite countertop.
Prepare to Fix the Countertop
To fix a granite countertop, gather the following materials:
- latex gloves
- disposable cups
- steel wool or sandpaper
- mild liquid dish soap or peroxide cleaner
- masking tape
- clear tape
- razor blade
- color additives
- stir sticks
- tongue depressor or small foam brush
- knife-grade epoxy and epoxy hardener
- granite sealer
Clear the countertop, and add some dish soap to a bucket of warm water. Clean the entire surface using the sponge, including the chipped or cracked area. Rinse with a damp sponge, and use a towel to dry, or let it dry naturally.
If the countertop is stained, ventilate the area, and apply a peroxide cleaner. Avoid using products that may damage the surface.
Mix the Filler
Granite epoxy kits are available to fix chips and cracks, and the kits will contain the necessary tools. Tape the surrounding areas around the damaged piece, leaving a small exposed edge to make matching the surface easier. It also reduces the amount of sanding after the repair material dries.
Mix the epoxy in small amounts in a disposable cup, and stir with a stir stick or the included tool. Add color until you get a shade close to your countertop, then follow directions to add the hardener.
You will need to make more than one batch in a separate cup, if the countertop is multi-colored. It is best to mix small amounts, since it commonly hardens in ten minutes.
Fix the Cracks or Chips
Since epoxy tends to be flammable, avoid turning on ovens or using appliances that require heat until the epoxy dries. Dip the foam brush or tongue depressor in the epoxy, and spread it on the damaged area, so it comes slightly over the surface. Use a toothpick for small scratches or dings. And to fix deep dents, add a layer of clear epoxy first to give a stronger finish.
Remove excess epoxy using the razor blade. Spread a piece of clear tape over the area to help even the epoxy until it dries. Lightly sand the patched area, then clean the area again with peroxide or dish soap. Protect the finish of the countertop by applying a sealer, and let it dry for the suggested time.