Finish plaster: differences, features, installation method

Plaster plays a vital role in the final touches that complete your walls. Plastering is more than just smoothing out surfaces; the kind you use can greatly affect the appearance and longevity of your walls. Making the best decision for your house is made easier when you are aware of the characteristics and variations of finish plaster.

There are several types of finish plaster, and each has special qualities of its own. Some offer a more textured finish, while others are made to look sleek and professional. By being aware of these variations, you can choose a plaster that both fits your functional requirements and matches your style.

The way the installation is done is also crucial. A durable and appealing outcome is ensured by correctly applying finish plaster. To get the best results for your walls, whether you’re doing it yourself or hiring a professional, you should be aware of the basic steps involved.

Type Features Installation Method
Traditional Plaster Durable, requires a base coat, can be sanded for a smooth finish Apply base coat, let dry, apply finish coat, smooth out
Modern Plaster Quick-drying, often comes in pre-mixed forms, less labor-intensive Apply directly to surface, smooth with trowel, minimal sanding
Decorative Plaster Used for textures and patterns, adds visual interest, can be tinted Apply in patterns, use tools to create texture, let dry

The finish layer of plaster

Appointment

The finish absorbs all of the negative environmental effects.

Knowing what should happen after a work is successfully implemented is crucial for any endeavor.

When it comes to plastering walls, the last layer needs to meet the following requirements:

  • Filling and eliminating all the irregularities of the wall surface. Like any plaster, the finish is intended to level the surface, and this task must be solved in full, regardless of what other tasks are assigned and how they are solved. Even the most durable and high-quality finish is considered unsuccessful if it is uneven or non-uniform;
  • Protection of the structure and basic finish from mechanical damage, moisture, sunlight, corrosion and other destructive factors. It is the final finish that takes the brunt of the environmental impact, and the protection must be comprehensive;
  • Creation of a high-quality surface in terms of texture, relief, color and other decorative properties. The solution must have components correctly selected by fractional composition and properties, which when dried will look like a durable monolithic material, smooth or relief.

The finish’s primary goal is to create a surface that is beautiful, strong, and smooth.

It’s important to note that putty and conventional plaster, two related finishing technologies, are combined in the finished plaster. Putty is intended to fill in tiny indentations and irregularities, as well as to provide fine alignment—a characteristic that is also common for plaster final finishing. Nevertheless, final plastering, in contrast to traditional putty, protects the walls, levels the surface, and functions as an adornment.

An illustration of wall finishing inside.

Although the lines between these ideas are becoming increasingly blurred, plaster is more commonly referred to as façade cladding, while interior finishing is more like putty. Though putties are sometimes treated similarly, the only obvious difference might be the presence of a relief on the surface, which is more typical of plasters.

Plastering in the final coat in the traditional manner.

Standard terminology refers to the finishing layer as the second layer in classic lighthouse plaster. After applying and leveling the main base, the finishing layer fills in any depressions and irregularities and smooths the surface to the best of one’s ability. We’ll think about this stage as well.

Crucial! Whatever the name of the finishing technology, its primary function is to create a smooth, attractive surface while safeguarding the wall.

  • What is the difference between putty and plaster

Features and differences

The components of different finishing materials have different properties.

The granularity or fractional composition of the filler is the primary distinction between the finishing mixtures. The smallest particles of cement, sand, lime, talc, chalk, or gypsum should all be included in the mixture to produce the smoothest and longest-lasting surfaces.

Using filler that has been finely dispersed, you can make smooth surfaces.

On the other hand, the tiny portion places several limitations on the technology:

  • high fluidity of the solution;
  • inability to apply a thick layer;
  • high probability of cracking.

For this reason, starting mixtures containing large filler particles are utilized for basic leveling, which evens out significant plane differences.

The final coat ought to be thin.

Crucial! Rubber, glue, resins, polymer compounds, and other plasticizers are added to the coating’s composition to keep it from cracking. Moreover, the layer can be strengthened with fiberglass or a particular painting mesh.

In addition, the material needs to be strong enough, resistant to shrinkage, moisture, and frost, and have good adhesion to finishing layers that came before it. Because different additives can be added to the mixture for this purpose, the finish costs a little more than the raw materials.

Finish plaster is a crucial component of wall decoration because it has both practical and beautiful uses. It offers a variety of finishes, from matte to glossy, and aids in producing a smooth, long-lasting surface. You can achieve a professional look in your space by knowing the distinctions between different types of finish plaster, their special features, and the right installation techniques. You can make sure that your plastering project turns out perfectly by following the steps outlined in this article.

Installation

Using a plaster float, spatula, or trowel, the task is completed by hand.

Crucial! We will take into consideration all the steps that come after the fundamental wall leveling since finishing plaster is commonly referred to as the last stage of base layer leveling and grouting as well as the application of the final decorative coating.

Detailed instructions for completing the last surface plastering:

  1. After we have thrown the solution onto the wall and leveled it along the beacons, at least 6 hours must pass before it begins to set and harden. At this time, you can already remove the beacons and begin finishing. Carefully remove the slats from the base layer and prepare a cement-sand or lime mortar based on washed fine river sand or from a ready-made dry mix for finishing plaster;

Make the solution; it should have the consistency of liquid sour cream.

  1. Apply the solution to the trowel with a narrow spatula or trowel, then apply it to the wall from the bottom up and from side to side, as if rubbing it into the surface. In this case, the edges of the float or trowel will smooth out the protruding irregularities on the still fresh base surface, and the solution will fill all the pores, holes and depressions. The layer should be built up to a minimum;

On the base layer, apply the solution.

  1. When the solution covers the base layer, begin to rub it in a circular motion. Wet the surface of the float with water and make sure that it is clean, we achieve the most even texture;

Work the layer in acceleration or circular motions.

  1. Carefully process the corners, alternately rubbing them from different sides along the planes of adjacent walls. The quality of the corners is one of the most noticeable characteristics of the work performed;

Take extra care when observing the corners.

  1. Wait until the coating dries for 24 hours and sand it with fine sandpaper or an abrasive mesh;

Use an electric sander or a basic float to sand the layer.

  1. Prime the sanded wall with a deep penetration compound;

Sand the wall and prime it.

  1. Prepare a solution of decorative plaster according to the manufacturer"s instructions. It is more convenient to do this in a wide tray using a drill and whisk;

Blend the ornamental plaster.

  1. Apply the solution with a trowel to the wall in a thin layer (1-3 mm) and smooth it out to the most even monolithic surface;

Smooth the wall after applying the solution.

  1. If necessary, paint it.

Crucial! When processing the facade, especially if you are using pre-made mixtures, make sure you read the packaging carefully to determine the composition’s purpose and extent.

Selecting the appropriate plaster finish can greatly improve the appearance and longevity of your walls. Gaining an understanding of the distinctions between different types of plaster and their distinctive characteristics is crucial, regardless of your preference for a more textured finish or a smooth, polished surface. Each variety has unique advantages and can have varying effects on how your room looks in the end.

The best results when installing finish plaster depend on using the correct procedures. Plaster can be applied evenly and surfaces well-prepared to help prevent common problems like uneven texture or cracking. The quality of your finish can be greatly improved by taking the time to comprehend the application process.

Beautiful, long-lasting walls that improve any room’s aesthetic appeal can be created by carefully choosing the right plaster and applying it. Remember these pointers to get a polished finish that fulfills your design objectives.

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Dmitry Stepanov

Professional decorator with 10 years of experience. I know everything about renovating apartments, houses and offices. I will be happy to share my knowledge and experience with you.

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