Mix plaster yourself - a guide

Of course you can also mix your plaster yourself - this sometimes saves costs and is actually quite easy, if you only use a few aggregates. How to mix the mortar properly, shows you the following instructions.

Lime mortar or cement mortar?

Lime mortar is particularly suitable for interior plasters, because it is moisture-regulating and can prevent the formation of mold. Lime cement or cement plasters go but also.

Lime mortar binds the slowest, but sticks better, cement mortar is harder, but binds off faster. Lime cement mortar has the properties of both binders.

Basic components

  • Lime or hydrated lime or cement
  • sand
  • and water

The "recipes" are simple: for cement mortar 1 part cement and 4 parts sand, for mixed mortar to 2 parts lime 1 part cement and 8 parts sand.

For lime mortar add 1 part lime to 3 parts sand or 1 part hydrated lime and 4 parts sand.

The amount of water you need to always appreciate something - in the end it is important that you get the right consistency. The following instructions show how mixing works

Mix mortar properly step by step

  • Lime, hydrated lime, cement
  • sand
  • water
  • shovel
  • trowel
  • a sufficiently large flat surface - preferably a mixing box

1. Cement or lime / hydrated lime and sand

On the spread sand, put the binder - cement, lime or lime cement - in small piles and mix these piles evenly with the sand until the mixture is uniform everywhere.

2. Add water

You can only do this in small quantities - put the water in each of the piles in a small well and then mix the pile thoroughly until everything is just as damp.

3. Mix to the right consistency

Repeat step 2 until your mortar has the right consistency - slightly glossy. How much water you need depends on the type of mortar, but also on the moisture content of the aggregates and the binders.

Tips & Tricks

For large volumes, it is better to use a mixer - first add water, about two-thirds of the required amount - and then mix for four minutes with the sand, the cement and the remaining water.

Video Board: How to plaster a wall, a beginners guide. Plastering made easy for the DIY enthusiast.