Impregnating or sealing slate - differences and tips

Slate is a natural material that is very popular and has to struggle with a wide variety of influences, such as the ambient conditions, especially outdoors. Protection by impregnation or sealing may then have to be found.

Keep slate clean and protect it from dirt

Slate is used today for a wide variety of surfaces. It is no longer just the facade or the roof on which the gray slate or slate tiles are attached in the classic way. In some cases, there are also surfaces in the interior, for example in the kitchen, which have to do with external influences in the form of dirt, moisture or other external influences on a daily basis and must therefore be adequately protected. Finally, a light care of the slate or. the slate surfaces be possible. Sealing or impregnation can help to protect the surfaces effectively for a long time and to protect them from heavy soiling or other impairments.

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It all starts with thorough cleaning

Before sealing or impregnating, you should first clean the surfaces thoroughly, preferably with a cleaner specially designed for natural stone. Under no circumstances use acidic cleaning agents that have been removed from the surface or. the material can cause permanent damage and which usually cause unsightly stains or discoloration. There is one exception to this, namely sulfamic acid, which does not attack the material. It is often used as a descaler.

Use a sealer

The sealing protects the surface very well against external influences and, above all, makes maintaining the slate much easier. Essentially, it provides the following properties:

  • Easy to care for and smooth surface
  • effective protection against moisture and dirt
  • the seal forms a kind of protective layer

Impregnation as an alternative

Impregnation works a little differently because, unlike sealing, it penetrates into the material. However, you should bear in mind that not every type of slate can be impregnated without further ado. However, if this is possible due to the nature of the material, impregnation can also be used to prevent heavy soiling, as well as the penetration of liquids into the material. However, dirt should be removed from various slate surfaces as quickly as possible, before they become stuck. In addition, the impregnation may have to be repeated after a while.