Seal slate sheets properly to protect against stains and dirt

Surfaces made of natural stones such as slate come into contact with many harmful substances on a daily basis, which is why they need adequate care. Here it helps to seal the slates and thus protect them from the dangers of everyday life.

Proper protective treatment for slate is important

There are different ways to protect slate sheets from environmental influences or all kinds of pollution. A distinction is made between different types of protection. Here are a few options:

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  • The impregnation of slate sheets, during which the protective agents penetrate the material and do not form layers. However, not every type of slate is suitable for impregnation.
  • The other option is to seal the slate sheets. In contrast to impregnation, a protective layer is formed on the surface.

The properties of the different degrees of protection

Impregnation is not suitable for materials such as oil shale. These materials have a surface that prevents the impregnation from penetrating. A seal should be used here. This is very often done on relatively rough slate surfaces. Sealing is a protective function that fulfills several tasks at the same time. The surface is protected by the layer, at the same time the surface is smoothed, which makes daily care easier. However, the seals are only made indoors.

How to do the sealing

A basic requirement is a clean surface of the slate. You should therefore do a thorough cleaning before sealing. In the case of wet cleaning, the panels must first dry out completely before sealing. So do not seal the slate sheets immediately after this thorough cleaning. It is best to wait at least a day before you start sealing. Then apply the protective agent exactly according to the manufacturer's instructions, covering the entire area of the slate. Also note the drying time that the sealant needs to develop its full protective function. This can take up to several hours.

The sealing should be repeated regularly

It is very important to repeat every protective treatment at certain time intervals. Please also note the information in the description. Impregnation or sealing is not permanent. Of course, the maximum time intervals between the seals also depend on the use of the corresponding surface.