A handy guide to wall plaster materials

A handy guide to wall plaster materials

Who doesn’t like a beautiful and smooth wall texture? We all do, right? And the magical process that helps us achieve such walls is Wall Plastering. It is pretty necessary to ensure that your wall plastering is done in an accurate way. Since the growth in the construction sector, manufacturers and suppliers of building materials have come up with various plastering materials that are widely available in the market today. Read on this blog to know all about the plastering materials and get amazed!

Why wall plastering is necessary?

Wall plastering is the process of smoothing out the rough and uneven masonry or concrete surfaces, wherein a layer of wet mortar is applied onto the surfaces and then is given a smooth level with the appropriate tools.Though the preliminary finished wall looks uneven,to make it aesthetically pleasing, an additional layer of plaster is applied that fills in all the gaps. This also ensures that there are no seepage and that the walls are more durable. In all, the main purpose of plastering is to achieve a hard and smooth surface that can be painted for giving out appealing look to your space.

Initially, in the decades gone by the wall plastering material would be basically clay or mud, what we knew as as “Kuccha House” back then in India. Today, with the growth in the construction industry and development of new products, plaster materials range from gypsum powder to wall putty with intricately carved designs. Let’s have a look what the various plaster materials.

Types of wall plasters:

  1. Gypsum plaster: Whether naturally mined or synthetically obtained, gypsum powder is mixed with water and additives, after whichthe paste is then applied evenly on the surface. These are available in different setting times wherein the powder with fast setting time is used for roof & ceiling plastering while the one with extended setting time is used for wall plastering. Gypsum plasters come with fire-resistant, moisture-resistant, and noise attenuation properties and requires no curing period.
  2. Cement plaster:The mixture consists of gray Portland cement, sand, plasticizer and water in the ratio of 1:0.25:3:4. Plasticizer ensures that the mortar spreads smoothly over the surface. However, the backdraw of this plaster is that it requires a curing period of minimum of 21 days which makes the construction process longer.
  3. Lime plaster:It is the most primitive plaster material whereinsand and lime are mixed in a 1:3 ratio by volume. This plaster is found in most ancient buildings and is commonly used in the restoration process. One interesting fact about lime plaster is that animal hair is added to the mixture in the quantity of about 5kg/1m2 to ensure that the lime plaster does not show cracks after drying.

 

How is wall plaster applied?

Application of wall plaster is an easy process. The steps included are as follows:

  1. First, the wet mortar is prepared based on the type of wall plaster material used. While cement- based mortar might take a longer time to be mixed, gypsum-based mortar is comparatively faster.
  2. The wet mortar is then applied on the surface. Ensure that the thickness of the layers does not exceed 0.3cm as thick plaster falls off of due its own weigh So the thinner, the better.
  3. In case of irregularities in the primary surface, apply multiple thin coats of plaster until you get a smooth and even texture. Ensure that the previous layer of the plaster coating has completely dried up, before applying the next coat.

While the different variants of wall plaster ensure to provide an uniform texture to your walls, what makes it even more interesting are the types of wall plaster finishes. Curious to know about it? Well then, stay tuned for our next blog update.

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