Felt lime plaster and create smooth interior walls

Indoors, coarse and rough surfaces are often undesirable. To optimally smooth a lime plaster, the top coat can be treated with a felt-covered float. In combination with the appropriate plaster mixture, very smooth surfaces are created which hardly differ from plaster, wallpaper or paints.

Wait for the stiffening time and recognize

The application and repair of a felt plaster consists of a mixture of experience and feeling. Attention must be paid to the right time when the process starts. A central criterion is the so-called stiffening time, which must be given to the applied finishing plaster.

The stiffening times differ depending on the type of lime:

  • Burned, fine and lump limts start already after ten minutes
  • Hydrated lime, marsh and water lime need at least one hour
  • Lime plaster with cement stiffened after about half an hour.

Further time criteria are the thickness of the lime plaster. Common is a top coat in the thickness of three to four millimeters. The humidity and temperature during processing influences the right time. A push test with your fingers tells the best time. The lime plaster must not give in, but still be as moist as possible.

How to felt lime plaster

  • Fine sifted sand (grain size 0-1 mm)
  • Hydrated lime or marsh limestone
  • tap water
  • Kartätsche
  • Painters Quast
  • trowel
  • Float with felt cover (5 -10 mm covering thickness)
  • spray bottle

1. Apply top coat

Apply the surface plaster in a thickness of three to four millimeters with the cleaning trowel and smooth it roughly with the grape box. Wait until the plaster has stabilized and check the condition with the finger pressure method.

2. Moisten the felt and plaster

Spray a slight mist-like moistening on the felt cover and moisten the plaster with the quast.

3. Felt the surface

Smooth the plaster surface with circular movements. If necessary, moisten the felt again.

Tips & Tricks

Finish the felting when you have reached a smooth structure. If you continue rubbing for too long, the undesirable effect of creating grooves and grooves can occur. Follow the thought that it can not be smoother than smooth.

Product Image: vata / Shutterstock

Video Board: 20) Finishing lime plaster (smooth and flat)