If you want to revise your old rough plaster in the interior and need a smooth surface for the new wall design, then you need not necessarily remove the plaster. With a little know-how, a rough plaster can be smoothed by sanding and trowelling. Ab Sanding and smoothing rough plaster
To smooth the sharp burrs on the rough plaster, you should first sand the surface with a cleaning planer. It is advisable to wear eye and mouth protection and to cover all dust-sensitive objects well with foil. Then clean the rough plaster surface thoroughly with a fine bristle broom and the vacuum cleaner - by wiping damply, you also remove the last dust grains. Then you can smooth the rough plaster with plaster of Paris plaster. Glatt Smoothing the rough plaster
Stir the finished plaster with the agitator into a creamy mass and process the material within a maximum of 90 minutes.
Using the mounting board, pull the plaster on the wall so that a flat surface is created.
- Wet the applied plaster of Paris plaster layer and immediately felt on the surface with a sponge felt disc. With the trowel you can now smooth the entire wall.
- Ventilate the room well, so that the plaster dries quickly.
- Instructions for processing plaster of plaster
- The plaster thickness should always be at least 5 mm, the ideal layer thickness is about 1 cm. If you want to apply the plaster in two layers, then you should remove the first layer only rough and after drying with the Rotband universal primer. Then apply the next layer and then smooth the surface. Ceilings, however, should always be plastered only one layer. For better adhesion of the lower layer plaster also use the appropriate universal primer from Rotband - you can paint this directly on the smoothing plaster. The same primer is also suitable for priming the finished surface.