Lime plaster is the simplest and most demanded type of wall decoration. Lime does not grasp as fast as cement, and not as whimsical as plaster. The basic nuances of working with it have long been identified and are known to everyone.
Next, we will try to tell you everything you need to know about plaster walls with lime mortar.
Application of lime plaster
Lime mortar for plaster can be called a universal means for finishing walls and ceilings. It can be used both for facade treatment and for interior works. Quite a wide range of applications lime has earned its many qualities: reliability, accessibility and unpretentiousness to the material from which the wall is built. The only drawback is that it is not waterproof, and this option can not be used in bathrooms or basements. For rooms where it is rather wet, it is possible to use a lime-cement mix, which sets much quicker and easily tolerates high humidity.
With the use of lime is made as the main plaster for the gluing or painting of wallpapers , and decorative plaster for decorating interiors and facades.
Possible components for lime mortar
- Sand. Lime-sand plaster is the most popular mixture. When mixing mortar, you should consider what kind of sand you add - if taken near a pond, it should be washed, and the rest of the sand must be sieved beforehand.
- Cement. When mixing lime with cement, a complex moisture-resistant solution is obtained, which is expensive (due to cement) and is used exclusively in repairs, and not in finishing new buildings.
- Gypsum. Lime-plaster plaster is used in the decoration of stone or wood surfaces. It very quickly seizes, so the solution is kneaded in small portions and immediately put into operation.
For proper use of lime plaster, it is necessary to observe clear proportions, which fluctuate depending on the filler. Lime-sand mortar is prepared in the ratio 1: 4 (1 - lime, 4 - sand), lime-cement in the ratio 2: 1 (2 lime, 1 - sand), and calc-gypsum - 3: 1 (3 - lime , 1 - sand).
How to determine the desired viscosity of the solution? The ideal option would be that when the mortar lay a thin layer on the shoulder blade, then it will hold firmly to the surface.
If you follow all the simple rules, you can save a lot and improve the quality of the walls.