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Frequently Asked Questions

What is concrete sealer and how does it work?

Concrete sealers are applied to concrete to protect it from surface damage, corrosion, and staining. They either block the pores in the concrete to reduce absorption of water and salts or form an impermeable layer which prevents such materials from passing.

What is the smallest type of concrete sealer?

Silane: Silane is the smallest molecular compound of commonly available penetrating sealers. Chemically, Silane forms a covalent bond within porous masonry that clots surface pores. Silane is known to be hydrophobic and oleophobic and will only wear away if the concrete surface itself wears away.

What is the difference between water based and solvent based concrete sealers?

Solvent based products normally have a higher VOC and require more care in using and storing due to flammable/ combustible characteristics and solvent odor. Solvent based Siloxane sealers tend to penetrate more deeply than water based variants. Siloxane sealers cannot be used on freshly placed concrete.

How long do penetrating concrete sealers last?

Since most penetrating sealers bond permanently with a cementitious surface, the sealers typically last as long as the substrate lasts or as long as the top of the surface to the depth of the sealer lasts. There are five main types of penetrating concrete sealers: Silicates, Silanes, Siloxanes, Siliconates, and Fluorinated materials.


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