The Complete Guide to Protecting Natural Stone:
Best Sealers, Maintenance Tips & Essential Do’s and Don’ts
Natural stone is one of the most premium materials you can use in a kitchen, bathroom, outdoor area, or commercial space. Marble, granite, limestone, sandstone, travertine and bluestone all bring beauty—and value—to a property. But because stone is naturally porous, it needs proper protection to prevent staining, etching, water damage and long-term wear.
Whether you’re a homeowner renovating, or a builder looking for the best product recommendations, this guide covers everything you need to know about protecting natural stone, choosing the right sealer, and keeping your stone looking flawless for years.
With the right sealer and the right maintenance routine, your stone will stay looking flawless for years. This guide covers everything you need to know.
Why Protecting Natural Stone Matters
Unsealed or poorly maintained stone can absorb liquids and oils, leading to staining, etching,
dullness, water marks, and long-term deterioration.
Sealing is essential because it:
• Repels water and oils
• Prevents staining
• Reduces etching on sensitive stones
• Helps surfaces stay cleaner
• Extends the stone’s lifespan
How Stone Sealers Work
Natural stone contains microscopic pores. A sealer penetrates these pores and creates an invisible barrier that repels contaminants. The correct sealer must be chosen based on the stone or material type. Sealers can be exceedingly effective if applied and maintained correctly. They can also be a frustrating, costly and timely exercise if done incorrectly.
Types of Stone Sealers
1. Penetrating / Impregnating Sealers
Ideal for marble, limestone, granite, travertine, sandstone.
Invisible appearance with maximum protection.
Top professional brands: Dry-Treat Stain-Proof, Aqua Mix Sealers Choice Gold, Lithofin Stain-Stop.
2. Enhancing Sealers
Best for sandstone, slate, bluestone and travertine.
Deepens and enriches colour while adding moderate protection.
3. Topical (Surface) Sealers
Forms a protective coating on top.
Best for feature stone and some outdoor applications.
Not recommended for kitchen benchtops.
4. Sealing Granite, Engineered Stone & Porcelain.
Granite – There are certainly benefits to sealing Granite when using an oil-repellent penetrating sealer. This will also provide long-term durability to common use areas.
Engineered stone — generally does not require sealing.
Porcelain/sintered stone — non-porous and requires no sealing.
Recommended Sealer by Stone Type
Marble – Penetrating sealer
Granite – Oil-repellent penetrating sealer
Limestone – Penetrating sealer
Sandstone – Penetrating or enhancing
Travertine – Penetrating
Bluestone – Enhancing
Slate – Enhancing
Engineered Stone – Not required
Porcelain – Not required
How Often Should You Reseal?
Marble: 6–12 months
Limestone: 6–12 months
Travertine: 12–18 months
Sandstone: 6–18 months
Granite: 1–3 years
Outdoor stone: 6–12 months
Commercial areas: Every 6 months
DIY water test:
Place a few drops of water on the stone. If it darkens within 5 minutes, it needs resealing.
Daily & Weekly Cleaning Routine
• Use pH-neutral cleaners only.
• Avoid vinegar, bleach, ammonia, bathroom sprays.
• Wipe spills immediately.
• Use soft microfiber cloths.
• Deep clean every 2–4 weeks using stone-safe products.
Do’s & Don’ts of Stone Care
DO:
• Use chopping boards
• Use coasters
• Clean spills instantly
• Use pH-neutral cleaners
• Seal stone regularly
• Use mats & pads under appliances
DON’T:
• Use acidic cleaners (vinegar, lemon, CLR, bleach)
• Use abrasive scrubbers
• Drag appliances on the benchtop
• Leave oils or wine sitting on stone
• Assume engineered stone is maintenance-free
Professional vs DIY Sealing
DIY sealing is possible but short-lived.
Professional sealing offers:
• Stronger commercial-grade products
• Longer lifespan
• Even, streak-free application
• Maximum resistance
FAQ
Q: Does natural stone really need sealing?
A: Yes — especially marble, limestone and sandstone.
Q: How long does sealer last?
A: 6 months to 3 years depending on stone and product.
Q: Can engineered stone be sealed?
A: Not usually, but light colours may benefit in commercial use.
Final Thoughts
Natural stone is an investment. With the right sealer and maintenance routine, your stone will stay
beautiful, stain-resistant and long-lasting.
Stone Solutions — The only solution for anything stone.
