Plaster sealing slurry? Is the?

Damp walls are not only harmful to the building but also to health. A simple remedy helps to prevent moisture from penetrating: sealing slurry. A cement-based mineral sealing slurry can be plastered over later without any problems.

Why do you apply the sealing slurry once and once under the plaster?

A mineral sealing slurry is a breathable water barrier that can be applied both on and under the plaster. It always depends on what the job is supposed to achieve.

  • A sealing slurry under the plaster is mainly used where moisture can penetrate the building from outside.
  • You need a sealing slurry on the plaster in damp rooms such as showers or bathrooms, for example as a sealing slurry under tiles, so that no moisture can get through the tiles into the masonry.
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How does the sealing slurry work??

Sealing slurry is a cement-plastic mixture which, in combination with water, becomes a water-repellent but also water-vapor-permeable and breathable coating. Thanks to various cements, minerals and other additives, the sealing slurry has good adhesion with subsequent strength.

Applying the sealing slurry is easy. It remains flexible even when it is tied, and it is frost and weather resistant. They are used both preventively to protect masonry against moisture and for subsequent renovation.

What to consider if the sealing slurry is to be plastered later?

Mix the sealing slurry according to the manufacturer's instructions. Use a mixer attachment for the drill (€ 48.00 at Amazon *) . This is the only way to ensure that the sealing slurry can be processed into a smooth mass without lumps.

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You should apply sealing slurry in two passes. First spread only a millimeter-thin layer of a maximum of 2 millimeters on the wall. Then this layer must completely dry out before applying a second layer.

Make sure that the sealing slurres are not dried so fast. Direct solar radiation must be avoided as well as drafts. If everything is completely dry, you can sweep the sealing locks or plaster the wall further.

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