6 Things to Avoid When Sealing Granite

Granite is naturally resistant to stains and bacteria, but this doesn't mean it's impervious to damage. Sealing granite creates a barrier against liquids that could otherwise soak deep into the stone. Sealing countertops isn't difficult, but there are several things you should avoid for a flawless seal and the best possible protection.


1. Using a Sealer with Harsh Chemicals

Granite Gold Sealer® is ammonia and phosphate-free, biodegradable, and nontoxic. Other sealers may contain harsh chemicals that produce strong fumes and require protective gloves and very good ventilation.

2. Going Too Long without Sealing

There's no harm in sealing your stone frequently, but going too long without sealing is never a good idea. If you neglect to seal the stone and the existing seal breaks down, the granite could absorb liquids and oils and develop deep stains and etches, leading to costly repair. Many people seal their countertops every 6-12 months, but sealing more often doesn't hurt. The best option is to perform a water test. Pur water about 3 inches in diameter on the surface in several locations and let it sit for 30 minutes. If a dark mark or ring appears, you need to seal your stone.

3. Sealing Before Cleaning

Before applying a new seal, make sure the granite is cleaned and dried thoroughly. If there is any debris on the surface, it will be trapped in the sealant and you won't be able to clean it away later. You should also look for and address any stains or etching before sealing.

4. Allowing the Sealer to Dry on the Surface

After cleaning and drying the granite, apply the
granite sealer liberally in three-foot sections. Make sure you immediately wipe the sealer into the granite using a clean, dry cloth. Always use a circular motion to buff the sealant. If you allow the sealer to sit on the surface and dry, it will cause an unattractive hazing, which can be corrected by reapplying the sealer and applying it correctly.

5. Forgetting to Let the Sealer Cure

The sealer needs time to cure before you clean the countertop or polish the stone. Wait at least 24 hours after sealing before applying any polish. The ideal temperature range for sealing granite is 40 to 85 degrees to ensure the sealer cures properly. This likely won't matter for granite inside the home, but it's important to keep in mind if you are sealing an outdoor granite countertop.

6. Overlooking the Importance of Polishing

Sealing stone is perhaps the most important step you can take to guard against stains and damage. However, polishing also offers protective benefits while keeping your granite looking its very best. Polishing your countertops after sealing can highlight its beautiful color and pattern. The best time to polish granite is right after the new seal cures. Liberally apply the polish directly to the surface of your countertops. Buff with a clean cloth, working in sections to ensure all areas of the stone are polished. Once you're done, use another clean cloth to thoroughly dry the surface.

If you have additional questions about sealing granite, get in touch with GraniteGold® today at 1-800-475-STONE. Our products aren’t just safe to use on granite. They’re also perfect to use on marble, slate, travertine, and other types of stone. We hope to hear from you soon.

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