Sealing your stone surfaces is becoming increasingly more important in the modern home due to the growing presence of stone surfaces in homes. Natural stone is often found in kitchens, gardens, dining rooms, and swimming pools.
Stone sealer can be used to protect surfaces from damage which can be caused by a number of elements. The sealers in the list ahead protect from staining, water-damage, salt-damage, and acid-damage.
Unnatural stone such as travertine and grout can also be covered by stone sealers.
Many of the sealants ahead will protect surfaces around your house with no visible results. There are two finishes to consider, glossy and natural.
The three types of stone sealers to choose from are:
- topical
- penetrating
- impregnating
Topical sealer – usually made from natural wax, polyurethanes, or acrylics. They change the look of surfaces and wear out relatively quickly.
Penetrating sealer – contain fluoropolymers, siloxanes, and siliconates. These sealers don’t usually change the look of surfaces and often last longer than topicals. They do require special cleaners to top up the repellent ingredient on the stone, however.
Impregnating sealer – contain silanes or modified silanes which bond to the pores inside the stone. This provides a long-lasting seal which is often used by professional companies.
Top 18 Stone Sealers of 2020
In the guide ahead you’ll find the best stone sealers in the United States – listed with the pros, the surfaces they are suited to cover, the finish they provide, whether they are suited for interior or exterior use as well as the price and coverage of the product.
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1. StoneTech BulletProof Stone Sealer
Description
A pint of the StoneTech BulletProof Stone Sealer will cost you around $35 and can cover up to 150 square feet. It is a penetrating sealer that provides a natural finish to the surface. It’s water-based and can protect your interior surfaces for up to five years with exterior surfaces being protected for up to three years.
This sealer can be used on sandstone, limestone, slate, brick, and concrete paving. It offers strength to your garden, bathroom, or dining room surfaces from weathering and stains.
Pros
- Lasts up to five years, with a two-year shelflife
- Can be used on interior or exterior surfaces
- Grout sealer prevents mould formation
2. Rock Doctor Granite Sealer
Description
One 18 ounce can will seal approximately 100 square feet and will cost you around $15. The Rock Doctor Granite Sealer can be used on marble, granite, and quartz surfaces with a natural finish.
It is a water-based sealer that penetrates and bonds with natural stones, it can also be used on grout to protect from moisture and other elements. The sealer can be used on your bathroom or kitchen countertops and tiles, providing a stain and water-resistant barrier to keep your stone looking like new.
Pros
- Spray-can makes application easy
- Adds natural shine and smooths surfaces
- Lasts for around a year
3. Stone Care International Granite Sealer and Protector
Description
A 24-ounce spray bottle of The Stone Care International Granite Sealer and Protector will cost you around $20. It is a penetrating sealer which is recommended for usage on surfaces including marble, slate, granite, limestone, quartz, grout, and travertine.
Its ammonia and phosphate-free formula makes it great for kitchen countertops. It’s easy to apply spray form covers 72 square feet in the 24-ounce bottle and 48 square feet for the 16-ounce equivalent.
This product also allows for the stone to breathe and release moisture vapors, whilst still providing a great seal with stain resistance and water resistance.
Pros
- Can be used on travertine
- Food safe for kitchen countertops
- Easy application
4. SimpleCoat Natural Stone and Stainless Steel Sealer
Description
The SimpleCoat Natural Stone and Stainless Steel Sealer once more offers a safe and non-toxic formula for your stone tiles or countertops, it can be used on your stone surface no matter where in the house it is.
This sealer can be used on all-natural stone and stainless steel surfaces as well as decorative metals, leather, wood, and hard plastic.
It provides an odourless finish, however, it can significantly change the shine and depth of color on your stone or stainless steel surface.
One 8oz bottle will protect 3,000 square feet of stone and 7,000 square feet of stainless steel – due to this, it will cost you around $40.
Pros
- Covers a wider range of surfaces than most
- Manufactured in the US
- One bottle can cover plenty of surfaces
5. Black Diamond Stoneworks Wet Look Natural Stone Sealer
Description
A 1Qt. bottle will run you close to $20 and will cover approximately 500 square feet. As you can see from the name, Black Diamond Stoneworks Natural Stone Sealer provides a wet look to your surfaces.
This sealer is best used on interior or exterior, slate, concrete, brick, pavers, sandstone, driveways, and garage surfaces.
Whilst it provides a wet look, it will not darken most surfaces once it dries. It is a water-based, penetrating sealer that can easily be applied by spray, brush, or roll.
It resists chemicals, oil, water, and UV rays offering durable, clear & non-yellowing stability to your stone surface.
Pros
- Interior or exterior surface sealing
- Made in the US
- 100% money-back guarantee
6. Trewax Professional Stone and Tile Indoor and Outdoor Sealer
Description
One 32-ounce bottle will cost you around $10. The Trewax Professional Stone and Tile Indoor and Outdoor Sealer is a water-based impregnating sealer suitable for indoor and outdoor surfaces.
It is recommended for use on unglazed Mexican Saltillo, quarry tile, slate, brick, grout, porous marble, concrete, and stone floors.
It offers a natural look, adding shine and gloss to your stone surface with little odor, whilst protecting from stains and water damage.
Pros
- Can be used on a variety of stone
- Suitable for indoor and outdoor surfaces
- Cheap cost
7. GlazeGuard Satin Floor Sealer
Description
A gallon of this GlazeGuard Sealer will cost around $80 to $100 and covers up to 500 feet. It comes in a two-part kit but is easy to apply with clear instructions.
It is a professional-grade, water-based sealant specifically manufactured for use on ceramic, porcelain, and stone tile.
The GlazeGuard sealer is rated to protect your stone surface for years with a clear gloss finish. It’s great for bathrooms, kitchens, dining areas, hallways, stairs, and entrances – whether interior or exterior.
Pros
- Interior and exterior use
- Toxic-free formula
- Professional-grade protection
8. Aqua Mix Stone Enhancer
Description
A 1Qt. bottle will cost in the region of $50 and covers anywhere from 125-375 square feet.
As an enhancer, this product darkens and highlights all tones and hues in the majority of stone types whilst offering discoloration and water resistance also. It is rated for best use on slate, travertine, grout, limestone, marble, granite, and quartz.
It is a penetrating sealant that enhances and adds to the natural look of your unsealed stone – rejuvenating color and improving the appearance of potentially weathered and worn down stone.
It may not be as long-lasting or protective as other products but reviews suggest it brings your stones to life no matter their current condition.
Pros
- Enhances and protects a range of stones
- Good for indoor and outdoor use
- Allows moisture-vapor transmission
9. FILA Surface Care Solutions Paver Sealer
Description
The FILA surface sealer is water-based with very low emissions of VOC. A 1Qt. bottle will cost around $40 and cover 215 square feet.
It gives the surface a wet look with a glossy finish, whilst also offering resistance to dirt, stains, and water.
It’s rated for protection and enhancement of color indoors and outdoors on natural stone and terracotta. For surfaces with low absorbency such as slate, it is recommended to use a 1:1 mix of the stone sealer with water.
The sealant is ideal for use on driveways, in kitchens, and other high traffic areas due to its strong resistance to wear and weather.
Pros
- Good in high-traffic areas
- Protects and enhances color on stone
- Weather-resistant
10. StoneTech Enhancer Pro
Description
A gallon of this sealant and enhancer will cost up to $170, covering around 450 square feet.
The StoneTech Enhancer Pro enriches color in stone and offers heavy-duty protection against stains. It is solvent-based and rated for interior or exterior use on granite, slate, marble, travertine and bluestone.
Once applied, the product will seal and protect your stone with a natural look – offering blemish, weather, and UV-resistant protection.
Pros
- Enriches color
- Heavy-duty protection
- Good for interior and exterior use
11. Kemiko Stone Tone Concrete Stain
Description
Combine the Kemiko Stone Tone Concrete Stain with a sealer to completely transform the appearance of an ordinary concrete slab into a slab resembling marble or glazed stone.
One gallon of stain can cover anywhere from 400-800 square feet and will cost you upwards of $50.
There are a multitude of colors available including Cola, Malay Tan, Vintage Umber, Walnut, Golden Wheat, Black, Garden Gold, English Red, Green Lawn, and Aqua Blue.
This stainer is acid-based and provides a purely decorative finish unless sealed afterward. It’s specially formulated to chemically bond with metallic ions in the lime component of the concrete, forming various – permanent – colors.
It’s a stainer which can be used inside or outside on driveways, dining areas, walkways, and patios.
Due to each concrete slab accepting the stain to varying extents an uneven, perfectly aged surface will show after application.
Pros
- Range of colors
- Cost-effective alternative
- Permanent
12. HMK S234 Stone Impregnating Sealer
Description
This product costs around $50 for a 1Qt. bottle and coverage is around 50 to 220 square feet per quart.
As suggested by its name, the HMK S234 sealer is an impregnating solvent-based stone sealer. It is rated for use on marble and granite along with all other natural or artificial stone surfaces including grout and travertine.
This is an impregnating sealer that provides a deeper, more penetrative application, meaning it will be more durable and protective than other products. It is silicone-based and offers a natural finish whilst remaining vapor permeable and therefore breathable.
Pros
- Long-lasting
- Durable
- Breathable
13. Miracle Sealants 511 PT SG Impregnator Sealer
Description
A gallon of Miracle Sealants 511 will cover anywhere from 1000 to 4000 square feet, costing around $80.
The 511 Impregnator is designed for the protection of all medium to dense porous surfaces. It offers a natural to semi-glossy finish, protecting your stones from moisture. It provides stain resistance whilst allowing vapor to escape.
It is suited for interior or exterior use and is good for food areas. As an impregnator sealer, the 511 provides a deeper, more penetrative, durable seal than alternative water-based or topical sealers.
Pros
- Good for food areas
- Impregnating type of sealer
- Interior or exterior use
14. Rain Guard Water Sealers SP-6003 Stone Sealer Concentrate
Description
Rain Guard Water Sealers Stone Sealer Concentrate comes in a 1Qt. container (around $50) which can make five gallons – covering up to 625 square feet of stone surface.
The sealant does not change the appearance of the surface, whilst preventing water, salt, efflorescence, and lime damage. It is specifically formulated to work on brick, pavers, paint, stucco, wood, and concrete.
It is a water-based, low VOC sealant with ‘Micro-Lok’ which ensures a mechanical bond that promises years of protection on all stone surfaces. It’s resistant to weathering, salt, dirt, freezing temperatures, and UV light.
Pros
- Made in the US
- Years of defense
- Good for interior and exterior use
15. SCI Stone Spray & Seal
Description
An 8-ounce bottle will cost you around $12 with coverage depending on the surface.
SCI Stone Spray & Seal stone sealer is a penetrating sealant ideal for concrete, grout, masonry, and all other natural stones. It does not change the appearance of stone after application.
The product is water-based, protects surfaces from staining, water, and oil damage all whilst allowing the stone to breathe and release moisture vapor. The spray is safe for interior and exterior use on walls, countertops, and floors.
Pros
- Covers all natural stone surfaces
- Breathable
- Safe for interior and exterior use
16. The Essential Values Concrete & Stone Sealer Finish
Description
One gallon will cover up to 1500 square feet and cost you around $40. The Essential Values Concrete and Stone Sealer is best used for protecting driveways, garage floors, patios, and other concrete surfaces.
Protect your surfaces from salts, stains, fungus, freezing, and thawing whether inside or outside, this stone sealer is good to use on both interior and exterior surfaces.
If you’re looking for a natural finish, one coat is enough. If you’re looking for a glossy finish, three coats will do the job – the choice is yours!
Pros
- Eco friendly
- Made in the USA
- Natural or glossy finish
17. Trewax Professional Stone and Tile Indoor and Outdoor Sealer
Description
One gallon of the Trewax Professional Stone and Tile Indoor and Outdoor Sealer will cover up to 1500 square feet and cost around $35. It is a water-based stone sealer that can be used on interior or exterior surfaces.
The product is rated for use on unglazed Mexican Saltillo, quarry tile, slate, brick, porous marble, concrete, and stone floors. This sealer contains acrylic urethane which makes surfaces scuff, stain, and water-resistant.
It’s a fast-drying sealer that has little to no odor and a natural finish.
Pros
- Easy to use
- Good for interior or exterior use
- Fast drying
18. Stone Pro Traverfill
Description
One pound of the Stone Pro Traverfill can cover 50 to 200 square feet, depending on the size of your cracks or chips. A three-pound bucket will cost you around $15.
This product is not just good for use on your chipped or cracked travertine, it can be used to repair many different stone surfaces. Apply just as you would a sealer to grout, simply fill in the cracks and leave to dry.
All you need to do is mix the product with water and apply within 15 minutes as otherwise, it will begin to set. There is a choice of light and dark options which can be blended to best suit your needs.
Pros
- Can be used on different types of stone
- Easy to use
- Cheap
Considerations When Choosing a Stone Sealer
When choosing a stone sealer it is important to consider the following:
- Type of stone
- Protection required
- Durability/footfall
- Finish
Choosing the best stone sealer for your needs, it’s important to make sure you know what you want. If you’re needing to cover a specific stone there are different products to best fit your wants, some work better than others.
It’s important to understand the shield your stone surface requires. Waterproofing, acid protection, salt, and stain-resistance are all considerations you need to make depending on where your surfaces are and how much traffic passes over them or on them.
The three different types of sealers will determine the strength and durability of your work. Whether you decide on a topical sealer, penetrating sealer, or impregnating consider how much traffic passes over your surface and how long you want your work to last.
There are two types of finish you can choose from; natural or glossy. Different sealers will produce different finishes, with some products allowing either a natural finish or glossy finish depending on how many layers you choose to apply.
FAQs
What’s the best sealer for natural stone?
For natural stone, penetrating sealers are seen by experts to be the most effective. Sandstone, limestone, granite, travertine, and slate are all-natural stones which penetrating sealers are great for.
What do you seal natural stone with?
There are three types of sealers: topical, penetrating, and impregnating. Sealing natural stone is a simple routine which will protect your surfaces from damage that otherwise cannot be prevented.
Should natural stone be sealed?
Yes, all-natural stone surfaces should be sealed every now and then. Due to stone being a naturally porous material, your surfaces can absorb bacteria, liquids, and other particles which lead to damage in look and strength. Sealing is often inexpensive, easy to do and something you should certainly consider if you have surfaces which may be vulnerable.
