Instructions for filling walls


In addition to plastering, the filling of walls is also a large area. Whether the filling of dowel holes, electrical slits or plasterboard during drywall - the filling of walls is an extensive field of work. Here you will find detailed instructions for skilfully filling walls.

The different spatula work on walls indoors

The filling of walls is probably one of the most classic home improvement work. At least when it comes to the filling of drilled holes or cracks. But even the filling of wall cracks and slots for water and electrical installations is a necessary work again and again. Then there is the filling of plasterboard walls. Even tile walls and tile mirrors can be filled when the old tiles are no longer pleasing. All putty work has in common that they are carried out indoors.

For interior fillers, it is usually gypsum filler

Here, there is also a distinguishing feature of the putty used for outdoor use. On the outside, cement-based putties are used, while on the inside, gypsum-based building materials are used. Otherwise, the putty can be differentiated according to their fineness. There are also refined fillers. These are plastic-coated fillers. The higher the quality of this coating, the more expensive the spatula will be - but this spatula is also excellent in quality. A special position can occupy the putty for wet rooms.

Step-by-step instructions for filling walls

  • Putty, according to the application
  • possibly adhesion promoter
  • Reinforcement material (depending on the application)
  • Edge or corner profiles (depending on the application)
  • water
  • gypsum cup
  • Electric drill with stirrer
  • mortar bucket
  • Trowel (trowel), according to the application
  • Quast

1. Preparation before filling the walls

First you should clean the wall to be filled with a broom dust-free. Then you can moisten the surface to be filled easily to better bind possible dust.

Depending on the surface, it may be that you should first apply a bonding agent. For example, on old tiles, it is imperative to pretreat them accordingly, since the tile surface the spatula can not give long term enough support.

2. Mix putty

Now you can mix the filler. Regardless of whether you use a small plaster cup (to fill holes etc.) or stir the filler in the mortar (for example, when filling plasterboard walls), first fill in the water. Then let the putty trickle into the water until the vessel has filled up to just below the water surface. Now mix the mass evenly, you get a creamy filler.

3. filling of walls

For joints, as they exist between two gypsum plasterboard, pull the spatula across the joint with the trowel or smoothing trowel across the joint. So make sure that the joint is really completely filled with filler. For filling holes, you can fill them with plaster using a conventional spatula.

If you want to finely fill entire walls, you can first apply the spatula independently of the direction of movement. For the final smoothing pull off the applied spatula either in circular movements (in a semicircle) from top to bottom or from bottom to top.

4. Connection work after filling walls

After you let the filled walls harden completely, you can start with the follow-up work, for example, the sanding of the filled walls.

Tips & Tricks

Gypsum has a water-attracting effect. In damp rooms, such as bathrooms, you should therefore use suitable putties. If you have applied gypsum-based putty, you must then apply a barrier primer.

When filling plasterboard walls, place reinforcement strips in large joints. These consist partly of cellulose or fiberglass material.

If the spatula slowly binds, you must stop using this filler. From now on, small lumps form, with which you would draw furrows in the already applied putty.

If you need to apply putty in a relatively thick layer, apply as thin a layer as possible in several work steps. This prevents the inclusion of air, which can lead to blistering. In addition, too thick applied spatula tears quickly.


Video Board: Drywall Repair: How to Fix a Hole in the Wall