Is it possible to paint silicate paint on the inside?

Silicate paints have a good reputation overall, they offer a high diffusibility and a long life. On the facade, they even withstand the sulphurous exhaust fumes of city traffic and thus protect the underlying plaster from damage. But one question remains open: Is this type of color also usable indoors?

That's why silicate paints are also suitable for indoor use

Silicate paints are corrosive, because of their high pH, ​​the painter should protect the skin and eyes from possible paint splashes. Also glass and tiles must be carefully covered, in order to cause no damage.

However, when the coating has dried, it is absolutely unproblematic as regards health, only possible mold fungi in the wall suffer from the alkaline environment - which eventually is more useful.

The walls remain permeable to diffusion with this coating, in addition silicate paint absorbs water from the air and releases it at low humidity, so the paint contributes to a uniform indoor climate.

The optics are also right if you paint silicate paint inside!

Silicate paints dry in a very special way: They silicate with the substrate, which means that they do not harden by evaporation of the solvent, but by a chemical reaction. The result:

  • The color does not form a layer sticking to the wall.
  • It results in a noble, natural surface.
  • The color changes a bit, which leads to more liveliness.
  • The color is rather gentle, harsh tones are hardly possible with silicate paint.

Attention: Paint silicate paints only on mineral surfaces!

One disadvantage of silicate paints, however, is that they may only be painted on mineral substrates, otherwise they can not be silicified. Without silicification there is no fixed connection to the wall.

This means that you must not apply your silicate coating on a wallpaper or an old dispersion coating: A raw, mineral plaster is the best basis.

Plaster surfaces tend to react negatively to silicate paint, often causing cracks and spalling. Gypsum plastered walls or putties made of this material should be covered with a different coating.

Tips & Tricks

For a strongly absorbent surface, you should prime with water glass instead of a base, as this is the only way the silicate coating will find perfect support.

Video Board: Painting your home Points to ponder before you start - Hindi