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Advantages & Disadvantages of Natural Stone Sealer- Impregnators

From: Date: 2/1/2013

Impregnators, this sealer usually work best for less porouss such as granite and marble . Both types of stone sealers may contain special additives to alter the stone s color or appearance. Well, here we will share the advantages and disadvantages with you!

Advantages of Impregnators
1.    Most impregnators won't change the appearance of the stone.
2.    Impregnators typically don't require frequent applications. Since the impregnator is below the surface, it will generally last several years before reapplication is necessary.
3.    Most impregnators aren't affected by UV light because they're absorbed below the surface where light can't penetrate.
4.    Impregnators are typically hydrophobic, and some of them are oliophobic as well.

Disadvantages of Impregnators
1.    Impregnators that are solvent-based produce vapors during application. In some cases these vapors can be noxious and flammable.
2.    Some varieties of solvent-based impregnators are harmful to the environment, releasing large amounts of volatile organic compounds (VOCs). For this reason, the use of these impregnators is restricted in certain states. Also, some water-based impregnators may also contain harmful or toxic chemicals. Always check the material safety data sheet (MSDS) of the product before deciding whether to use it.
3.    Proper application of impregnators is generally more difficult than that of coatings. In many cases, training or professional consultation is recommended.
4.    The initial cost of most impregnators can relatively high.
5.    Generally, impregnators cannot be used below grade to resist hydrostatic pressure. Because the stone is still capable of breathing, water can be forced through the stone by pressure.