Best Limestone Sealers 2022 – Reviews

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limestone-countertop Limestone surface has a visually appealing surface and is usually in high demand for indoor use, however leaving your limestone surface for a long time without sealing it exposes it to different contaminants that eventually cause it to lose color, grow dull and develop grout. The easiest way of preventing this is with the use of one of the best limestone sealers listed in this article.

Best Limestone Sealers in August, 2022

 SealerCovers (quart) 
1Stonetech Bulletproof
Editor's Choice
up to 200 sq ft Check Price
2Supreme Sealerup to 75 sq ft per aps. Check Price
3MIracle Sealant500 - 1000 sq ft Check Price
4Gold Sealerup to 75 sq ft per aps. Check Price

1. StoneTech BulletProof Sealer – Maximum Protection

The BulletProof Sealer from StoneTech is a water-based penetrating sealer, it offers tough and maximum stain protection against both oil and water-based stains. When applied to limestone or other types of surfaces, it impregnates the surface to offer full protection.

Water-based formula

The advantage of using a water-based formula for sealing your limestone floor is the environmental safety that comes with it. The water-based formula is eco-friendly and does not attack surfaces. It also does not only prevent water-based stain alone, it protects the surface against both water and oil-based stains.

For limestone surfaces, StoneTech BulletProof sealer offers effective protection by impregnating deep into the porous surface, it penetrates stone, tile, and grout surfaces. The deep penetration of the StoneTech sealer is another advantage offered by the water-based formula sealer. It is important even in bathroom or shower areas where surfaces are constantly exposed to moisture.

Heavy-Duty protection

For maximum protection of limestone surfaces, BulletProof sealer might be one of your best options, it ensures the overall protection of surfaces from stains and other forms of contaminants.

This type of sealer is quite known for its double protection against oil and water-based stain, it makes the surface look newer and easier to clean. The versatility of the BulletProof sealer is displayed by the wide range of surfaces it can be applied on asides from limestone. The sealer can be used on a wide range of surfaces including moisture area, it works best for floors that are very porous and needs high penetrating sealers to give additional protection to surfaces.

Interior and Exterior use

StoneTech BulletProof complies with safety regulations, it does not contain any toxic odor. It also has a very low Volatile Organic Compound (VOC). The safety level of the sealer makes it suitable for use in sensitive areas and interior usage.

Protection is available for either of these areas, although the durability reduces based on the location of the surface. Interior surfaces are expected to have durability up to 5 years, while exterior surfaces due to high traffic areas and weather can have up to 3 years.

The sealer preserves the original look of the limestone surface and does not alter the natural look.

  • It has a large coverage area of up to 100 square feet.
  • The sealer retains the natural look of surfaces.
  • The bulletProof sealer has an extended period of durability.
  • It only comes in a 1-quart container and might need more for large projects.
  • Sealing might require more than one layer of coating.

2. Supreme Surface Cleaner Polish and Sealer with IOSeal Protectants – All-in-One Complete treatment

The Supreme Surface Cleaner polish shows years of advancement in the stone installation industry to create a unique product that carries out an all-in-one complete treatment. The Supreme Surface Cleaner works as a cleaner, sealer, and polish. It saves you a lot of cost of buying either separately, it also saves you the time of application and preserves your precious stone.

IOSEAL Protection

This brand of cleaner, polish and sealer is a fine mixture of science and practicality. Supreme Surface cleaner leverages the use of advanced knowledge of stone science as well as the commonly faced problem of home users to create a unique and effective stone treatment product.

With the inclusion of IOSEAL technology, the treatment procedure makes use of powerful cleaning agents to get rid of dirt, grime, grease etc. While the dirt and stains are getting removed by the cleaning agents, the IOSEAL technology creates protection and interactional at the molecular level. The creation of ionic bonds at the molecular level allows the formation of a protective barrier that prevents further stains, it also defends the surfaces against UV fading.

Safe for use

Despite the high level of technology used in formulating Supreme cleaner, it is still made to be suitable and safe for human use both in terms of human contact and the environment. The product does not contain any form of harmful chemical that can affect usage, it is free from odor or volatile compounds.

In terms of safety level, it can be used indoors or in other areas considered sensitive. The IOSEAL technology only works in creating bonds at the molecular level and it in no way brings about harm during application. The IOSEAL technology even assists in preventing fading of surfaces as a result of ultraviolet rays.

Guarantees streak-free shine

Most cleaning and polishing agent after use leave behind cloudy smudges or residue making it difficult to have a cleaning or polishing agent that offers a streakless surface after application. However, the Supreme Surface Cleaner and Polisher leave behind no residue after application, your surface maintains a streakless surface.

The sophisticated formula used in creating the Supreme cleaner and polisher makes use of the wax-free property to efficiently prevent the build-up of greasy residue.

  • It makes use of advanced technology to tackle stains.
  • Supreme Surface cleaner is safe to use both indoors and outdoors.
  • It comes in a very small size of 8 Oz.

3. Miracle Sealants PLUS Porous Plus Sealer – Easy application

The Miracle Sealant PLUS QT511 penetrates deep into surfaces and leaves an invisible barrier over the surface it protects, making it resistant to damage from moisture or stains. Miracle sealant does not change the natural look of your surfaces and it is well suited for your limestone surface.

Indoor and Outdoor usage

The strong feature of the Miracle Sealant makes it a choice sealer to use for both interior and exterior surfaces, it is suitable for a range of applications on different surfaces and tiles in various locations. When you use the sealant, it protects the surface by providing an invisible barrier over it, but it allows water vapor to escape to create a stronger surface.

It is compatible with interior usage like places where food is being prepared or handled as it meets up with VOC requirements for safety. It also does not contain any toxic odor.

Easy to use

It is very easy to apply the sealer to the surface even if you are a beginner. The sealing of tiles can be done immediately after the tiles have been laid and the grout is completely dried. Brush and rollers are used for applying the Miracle Sealant to the tile seam line.


The sealer covers more area, a quart of Miracle Sealant can cover up to 1000 square feet, this saves you a huge cost and still allows you to get more area covered. You get more value out of the sealer.

  • It penetrates deeply to make the surfaces harder and prevent slipping.
  • The sealer forms an invisible barrier and does not change the appearance of the surfaces.
  • Protects against moisture and stains.
  • There is an initial issue of odor when applied on a surface.

4. Granite Gold Sealer Spray – Safe and easy to apply

Granite Gold Polish allows you to seal limestone, granite, marble, travertine surfaces, etc. Sealing brings out a streak-free shine on your stone surfaces. It is non-toxic and non-acidic and it is safe for use on multiple surfaces.

Simple to apply

The polish spray comes in a 24-ounce bottle, easy to be carried about and applied to surfaces. You can spray the bottle directly onto the countertop and with a little wipe from a paper towel, you can have a smooth and shiny surface.

Works on different surfaces

The product is well formulated to be suitable for different types of surfaces and still leaves behind a smooth surface. The use of Granite Gold sealer makes it easy for you to protect your stone surface.

You do not have to spend extra cost on different surfaces, you can use the Granite Gold sealer on different surfaces in the house. It works well in sealing limestone surfaces, granite, marble, and other types of natural stone surface.


Granite Gold polish takes away the worries of harm as the product complies with toxicity levels and requirements. It is non-toxic, it is safe for usage indoors as well as in food preparation areas and surfaces. The product does not contain phosphate or ammonium that can be seen as toxic to humans. The product is pH balanced and also biodegradable.

  • It is non-toxic and safe to use
  • The application process of Granite Gold is easy as it comes in a spray bottle.
  • If you used it on some floor surfaces, it can become slippery.

What Limestone Sealer Is

limestone-kitchen-countertopsLimestone sealer is a product designed to be applied directly to natural stone to help keep it clean and protect it from any damage or stains. It comes in many forms (from liquid, gel, and even wax) all of which are relatively easy to apply with great results. Limestone sealers not only make limestone look more attractive, but also aid the longevity of its surface as well. This is especially important when undertaking cleaning operations where you might risk damaging the finish of the stone.

Tips for Applying Limestone Sealer

  • Tip 1: Do not use a limestone sealer when the outdoor temperature is below 45 degrees F. This will cause it to be ineffective and you will have to start all over again.
  • Tip 2: You can apply the sealer with a painter’s brush, roller, or sprayer (for larger surfaces). It is advisable to wear rubber gloves to protect your arms from chemicals in sealer products.
  • Tip 3: Do not touch the limestone when wet. Limestone surfaces are porous and will absorb a lot of water, so drying after the application is vital.
  • Tip 4: Vacuum up any spills immediately to prevent stains from occurring on the surface. A common mistake when applying sealer is to let it drip or spill outside of where you want it to be applied. If this happens, clean up as soon as possible with a damp cloth and wipe away excess product from stone benches or patios. Remember that if left too long it will harden like cement! The sooner you wipe away spills the better chance you have of preventing damage to your stone surface area.

Frequently Asked Questions

How often do you need to seal limestone?

When it comes to limestone, sealing is undertaken every few years. This depends on how porous the stone is and how exposed it is to the elements; if your home has a lot of windows and doors, then you’ll probably have to reseal more often than someone with an interior or completely covered exterior.

Can you seal limestone walls?

Yes, you can seal limestone walls by applying a penetrating sealer. However, it will need to be reapplied every 2-3 years due to the porous nature of the stone and its tendency to absorb liquids easily. The longer the time between applications, the more likely efflorescence can appear on your stone walls.

How do you clean limestone pavers before sealing?

Limestone is porous and will need to be cleaned thoroughly before applying a sealer. You can use a pressure washer to clean your pavers but take care not to cause damage with the high-pressure water. If you are concerned about scratching or gouges on the surface you may want to consider using something other than a pressure washer. One technique that some people prefer is using an old rag with a degreaser like dish soap and rinsing off when done. Clean your pavers, as well as any walkways or patios immediately surrounding them, first before cleaning from above so that you are sure all chemicals get rinsed off completely and no residue remains in the cracks of the pavers.

How many coats of limestone sealer do I need?

Usually, one coat of limestone sealer will suffice, however, in some cases a second coat may be needed.

How long should I wait before applying the next coat?

In general, allow no less than 1 hour and no more than 48 hours between coats for limestone sealer.

Will the limestone sealer change the color of my stone?

Limestone sealer often will darken light-colored stones and can lighten darker-colored stones. However, this is just a visual change that doesn’t impact the integrity or performance of the finish.

What’s the best way to apply limestone sealer?

The best way to apply limestone sealer is with a brush, roller, or pad. Be sure to get into all the nooks and crannies for an even finish.

Can I use marble or granite sealer to seal limestone?

It is important to test a small area of limestone with the sealer before applying it to the entire surface. If the sealer does not harm or discolor the limestone, then it can be safely used. However, if there is any doubt, it is best to avoid using a sealer on limestone altogether.


Limestone and other stone surfaces are prone to damage when left exposed. There is a need to protect your limestone surface from stains and damage. The limestone sealer forms a barrier over surfaces to keep moisture out of them. Check out the review of some of the best limestone sealers here and find out the one that will be suitable for your surface.

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