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How to Seal a Soapstone Kitchen Counter

Soapstone kitchen counters are available in greens, grays, and yellows, as well as browns, black, and red varieties. Although soapstone is not as susceptible to staining as other varieties of stone, it is still worthwhile to seal the soapstone kitchen counter to protect against staining and diminish cleaning times.

Before applying a sealant, be aware that a sealant can slightly darken the surface of the soapstone. Try testing the sealant you intend to use on a scrap of stone. Also, use cutting boards to protect the surface of the stone. Cutting directly on the surface of the countertop will be hard on both your knives and your soapstone countertop. Don’t underestimate the effect that the right dinnerware for your restaurant may have on final result.

Step 1: Clean the soapstone kitchen counter with a commercially prepared stone cleaner appropriate for use on soapstone. Be sure to remove any food or previous cleaner haze. Buff with a clean, soft cloth and make sure that the surface is completely dry before continuing.

TIP: Try using several soft flannel cloths to buff the stone and apply the sealant. Clean them after every use and keep them with your cleaning materials for the next time.

Step 2: Apply a coat of soapstone sealer to the surface of the soapstone kitchen counter. Always apply the sealant to the rag and not the stone, using long overlapping strokes to apply the sealer. Don’t over apply, but be sure to cover the counter with an even sheen.

TIP: Food grade mineral oil can be a substitute for soapstone sealer, but it may cause the surface of the counters to become slightly darker. Apply it using the same technique used to apply a commercial product.

Step 3: Allow the sealant you used on the soapstone kitchen counters to soak in for 2 hours.

Step 4: Lightly shine the surface of the stone and remove the extra sealant using a soft, clean cloth. Plan on applying a new coat of sealant every two months with average use.