Touch up silicate plaster - for a clean surface

Silicate plaster is considered to be extremely robust and will last for many years outdoors. But nothing lasts forever, not even the most resistant coating! Sometimes the fault lies in the surface treatment before the plaster was applied. In many cases, however, settlement and stress cracks are also visible in the building, which only emerge over time. And then there is the mechanical damage that cannot always be avoided. How do you get rid of all the shortcomings??

Before touching up the plaster: check the cause!

The first step should always be to get to the bottom of the cause of the visible damage. This must namely be turned off, otherwise new flaking and cracks are to be expected!

  • Also read - is silicate plaster also suitable for inside?
  • Also Read - Exterior Silicate Plaster: A Really Good Choice?
  • Also read - Which is better: silicate plaster or silicone resin plaster?

In plain language, this means drying damp walls, removing mold, leveling surfaces and creating new adhesive bridges. Materials that work differently require reinforcement so that they can be flexibly connected to one another.

Also make sure that there is no fundamental damage that affects the entire area. Because then your repairs will no longer be of any use! You need to knock off all of the silicate plaster and build a new professional coating.

This is how you can touch up your silicate plaster

At this point we have put together some recommendations for you on how to best repair your silicate plaster. So you finally get a plastered surface again that can be seen!

  • Cover the floor and adjacent areas beforehand
  • Remove loose plaster to repair these areas as well
  • If you are working with fresh silicate plaster: Protect your skin and eyes
  • Widen wide cracks, reinforce and fill with flexible material
  • Always lightly pre-water before filling cracks and holes
  • Use shuttering boards if window reveals are damaged
  • Imitate the surface structure in the filled area
  • If necessary, hide visible repairs with a two-tone coat of paint
  • Never make repairs below 5 or above 30 degrees Celsius
  • If there are color differences, paint the entire surface at the end
Tips & Tricks Remember that dark plastered surfaces heat up disproportionately when exposed to sunlight! This entails more material stress and can lead to a higher probability of further damage. So better use light colors on the outside!