siliconates

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Concrete sealers — are coatings applied to concrete to protect it from corrosion. 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.[1] Extensive research from … Wikipedia
Stone sealer — Stone Porosity All natural stone is porous, which means it has interconnected capillaries through which liquids and gases can move. In fact, porous materials act like a hard sponge and actually suck in liquids over time, along with any dissolved… … Wikipedia

Словари и энциклопедии на Академике