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All natural and manufactured stones are porous since they are made up of countless interconnected capillary pores through which liquids and gases can move (YES…Natural stone is porous too!).  These porous materials act like a “hard sponge” and actually suck in liquids over time, along with any dissolved salts and other minerals.

What exactly is a sealer?

A sealer is a liquid applied to porous surfaces such as concrete, natural and manufactured stone, or tile, to prevent staining (efflorescence & spalling) from either water or oil-based materials. A sealer reduces the natural absorbency of a stone or material.

Modern stone sealers are divided into 2 types:

Topical sealers

Sometimes a topical sealer is referred to as a coating because this is exactly what it does…. coats the surface of your stone with a protective barrier.  It’s a layer or thin film sitting on the surface of your stone. Generally made from polyurethanes or acrylics. These sealers may be effective at stopping stains but, being exposed on the surface of the material, they tend to wear out relatively quickly, especially on high-traffic areas on driveways etc, and typically need to be removed before a new coat can be applied.  These sealers are typically not breathable, and are not effective against salt attack such as efflorescence and spalling.    


Impregnating sealers (Our Favorites!)

These are a type of penetrating sealer, which penetrate deeply into the material, impregnating it with molecules which bond to the capillary pores and repels water and / or oils from within the material. Most impregnating sealers impregnate deeply enough to protect against salt attack such as efflorescence and spalling.   A good depth of sealer is also essential for protection from weathering and traffic.

Kodiak Mountain Stone  initially will be offering two  Acrylic Sealers to our customers for application on natural and manufactured stone applications.

Matte Look Finish VS Wet Look Finish

GEMKOTE 400 (Solvent-based Acrylic Sealer)

GemKote™ is an aromatic acrylic sealer that can be applied to almost any surface: concrete, tile, cementitious overlays, natural stone, manufactured stone, and much more. Use GemKote™ for a gloss finish as well as for its UV and stain protection (efflorescence protection).

–          Non-yellowing

–          “Wet-look” finish

–          Interior/exterior use (If applied inside….do it in a well-ventilated area)

–          Can be applied with a brush or sprayed on.

–          Enhances color

–          Available in full matte finish that enhances color without “wet-look” finish.

–          Packaging in 1-gallon, 5-gallon, and 55-gallon quantities.

–          Coverage – 150-200 SF per gallon

DRI-LOOK (Water-based Acrylic Sealer)

Concrete Coatings, Inc. Dri-Look™ Masonry Sealer is designed specifically for brick and manufactured stone surfaces to provide an invisible barrier against water and the elements, yet leave the natural look of these surfaces with no visible sheen. Micronized polymers provide all the necessary protection to extend the life of these surfaces.

–          Water resistant

–          Invisible finish

–          Interior/Exterior finish

–          Can be applied with a brush or sprayed on.

–          No odor or silicone

–          Packaging in 1-gallon, 5-gallon, and 55-gallon quantities.

–          Coverage – 600 SF per gallon (Sprayed)


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