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What is the difference between a Silane-Siloxane sealer and an acrylic sealer?

Silane-siloxane sealers chemically react to form a water repelling hydrophobic barrier within the pores. They do not leave behind a visible surface film or coating. They reduce the absorption of surface water, therefore reducing damage and deterioration caused by water absorption such as freeze-thaw damage, cracking, spalling, and the growth of mold and mildew. Silane-siloxane sealers will last for up to 7-10 years before the need to reseal.

Acrylic sealers enhance concrete with a wet look, low gloss, or high gloss finish. They leave behind a visible surface film that is designed to protect the concrete against damage and deterioration caused by surface abrasion, water absorption, and exposure to the elements. Acrylic sealers will need to be reapplied every 1-3 years.

Both Silane-Siloxane sealers and acrylic sealers are great concrete sealers. The type of sealer that is best for your application depends on what you want the concrete to look like once sealed, and what you need the concrete sealer to offer in terms of performance.

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high-gloss wet look Finish

solvent based



The Armor AX25 is a solvent based siloxane-infused high gloss acrylic sealer. It offers superior water repellency benefits, making it the perfect sealer for pool decks and areas constantly exposed to water.


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The Foundation Armor product selector is intended to provide information to help you select the appropriate product for your application, based on the information you provide. The product selector is not binding, and is not guaranteed to be 100% accurate. The Product Selector also doesn’t include every possible scenario. Ultimately, it is up to the purchaser/user/installer to determine product selection and product compatibility. Foundation Armor does not assume any liability for the results displayed by the product selector, or for the choices/decisions made by the purchaser/user/installer/individual taking the quiz.

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