How to use plaster corners when decorating walls: their types and features

It can be difficult to achieve precise and clean edges when decorating walls. Corner beads, commonly referred to as plaster corners, are essential instruments for producing sturdy, precise corners in plastered walls. They give your walls much-needed protection against wear and tear in addition to improving their aesthetic appeal.

There are several varieties of plaster corners, each intended for a particular use and wall type. You can choose the best type for your project and guarantee a polished and long-lasting finish by being aware of the various types that are available and their distinctive features.

The quality of your wall decoration can be significantly improved by using plaster corners correctly. You can easily achieve perfect corners with the help of this guide, which will walk you through the various types of plaster corners, their features, and how to install them. This information will be crucial for your wall finishing projects, regardless of whether you’re a professional decorator or a do-it-yourself enthusiast.

What is a direct perforated corner

A common accessory for aligning and finishing angles is the perforated corner. For people who have chosen to decorate their walls on their own but lack experience, this is the best option.

The product’s areas of application are varied:

  • cladding of the edges of the walls and partitions;
  • strengthening of external and internal angles;
  • hardening, prevention of sowing of the finish on boxes, arches;
  • beautiful design of walls and ceiling;
  • Application as lighthouses for applying plaster.

D. Corners are applicable to all types of building materials, including drywall, brick, and concrete. They work especially well with GKL, whose sheets’ edges have a tendency to crumble in the absence of extra support. In terms of section, a straight perforated corner has many holes (is perforated), much like the English letter "V," which has flat sides.

Plaster or putty is used to attach building accessories to the corners of the walls, creating an even surface. They may have different strengths and widths, as well as variations in thickness and material composition.

Two kinds of perforated corners are available for purchase:

  1. External. The top in such elements looks outward.
  2. Internal. The angle of the product is directed inside.

The product’s top serves as the direction of attachment, and the edges’ perforations aid in securing the component to the wall with consistency. Plaster should not be used to cover the outer corners during installation as it can crumble easily. Conversely, a more robust building solution should be applied to the interior corners to further reinforce the wall-to-wall joints.

When painting walls, using plaster corners is crucial to getting a smooth, long-lasting finish and shielding the edges from harm. These instruments are available in different varieties, such as metal, plastic, and paper-faced, and each has unique advantages for a range of uses. Paper-faced corners guarantee a smooth, paintable surface; plastic corners offer flexibility and ease of installation; and metal corners offer strong reinforcement. Knowing their features and how to install them correctly will greatly improve the durability and quality of your wall décor, giving your painting and finishing projects a more polished appearance.

Types of profiles depending on the material of manufacture

Various materials can be used to create a corner for plastering angles. There are very few wooden products available for purchase. Among builders, plastic and metal accessories are the most popular.

Metal

These products are mostly utilized with plasters made of latex, acrylic, or gypsum. Both aluminum and galvanized steel can be used to make them. Although aluminum is a soft metal, it is sufficiently strong and almost never corrodes. Simply cut it more precisely to prevent bending.

Aluminum profiles are lightweight, long-lasting, and do not add to the load on building grounds. Even a novice can handle the work and fix them with ease, and the products are reasonably priced. Because aluminum’s impact resistance is limited, you shouldn’t subject the processed areas to excessive mechanical loads.

If not, there is a chance that the plastered layer will break, the profile will sag, and new sewer will need to be installed. As a result, shops, factories, warehouses, and retail establishments do not use aluminum corners.

Aluminum corners are significantly less expensive than galvanized ones. This is a result of more expensive production techniques, such as the use of zinc coatings. Although the coating stops metal corrosion, rust can still occur if damage causes the top layer to erode. It is not permitted to cut a grinder with galvanized corners due to the increased risk of rust. Only metal scissors are used for "cutting," as they behave more gently.

The following are some benefits of galvanized profiles:

  • high reliability;
  • long service life (subject to installation rules);
  • good tolerance of shock loads.

The heavier weight of profiles compared to aluminum is one of their drawbacks. Because of their bulk, if their attachment isn’t strong enough, they may eventually peel off.

Plastic

Steel and aluminum are stronger materials than plastic because they do not just bend but also fracture or even break into pieces when struck forcefully. It is necessary to purchase rather thick products and apply a thin layer of plaster. Plastic linings are necessary in a variety of situations, though. For example, they will become the best choice for edging angles in rooms with a lot of humidity. They do not rust even after many years, which makes them utterly unique in terms of corrosion resistance.

Plastic is thought to be chemically inert; different chemicals react with it poorly. This makes it possible to use plastic profiles in production, workshops, and other areas where there’s a chance of coming into contact with caustic materials. Naturally, at low concentrations, the material resists even interaction with acids and alkalis. Under such circumstances, metals will soon lose their usability.

Since plastic is a lightweight material, the structure is not burdened by it. It is simple to use to create an arc or curved corner with practically any bending radius. There won’t be any violations of the product’s integrity with accurate work. With the aid of pliers, you can cut a plastic profile with a basic stationery knife and even break it with your hands after leaving the edges alone.

Types of structures

Depending on the need, one must choose from a variety of shaped perforated corners that are available for purchase.

Direct corners

This product resembles a regular metal or plastic strip that has a 90-degree bend in the middle. Profile sides are used to cover the perforation, which is necessary to make it easier to fasten. Right corners are normally 0.5 mm thick for metal and 1-1.5 mm thick for plastic.

Arched products

Since metal products are unable to bend the arch’s shape appropriately, profiles of this type are exclusively made of plastic. The curvilinear faces’ inside and outside are finished with arched angles. Usually, they are made in segments or with a single side perforation.

Universal corners

Metal, plastic, and various other materials are used to make products. Actually, they are a tape that makes it possible to finish any non-standard angles where using regular straight profiles would be impractical. Plastic, metallized, and non-woven tapes are the most frequently found on the market. They are microperforated, have a width of up to 5 cm, and the fold line is in the middle.

Products with a grid

These corners have a reinforcing mesh fastened to them from the sides. Profiles work best when plastering in a "wet" manner or when applying an excessively thick layer of construction mixture. The corner’s material is either plastic or metal, and its width measures between two and four centimeters.

Combined corners

An aluminum or galvanized metal base with a fixed plastic or fiberglass mesh is what defines a combined type profile. It enables you to form joints correctly, strengthen weak areas, and create clear angles.

Type of Plaster Corner Features and Uses
Metal Corners Strong and durable, ideal for high-traffic areas, provides a straight edge for plastering.
Plastic Corners Lightweight and easy to cut, resistant to moisture, great for bathrooms and kitchens.
Fiberglass Mesh Corners Flexible, prevents cracking, perfect for curved or irregular surfaces.
Paper-faced Metal Corners Combines strength of metal with ease of paper application, smooth finish, less prone to rust.

In order to create smooth, polished walls, plaster corners are crucial tools. They ensure a straight, clean finish and provide a neat edge where two walls meet, shielding corners from harm. You can greatly improve your walls’ longevity and visual appeal by using plaster corners.

Plaster corners come in a variety of forms, such as paper-faced, plastic, and metal alternatives. Metal corners are perfect for high-traffic areas because they are strong and offer superior protection. Plastic corners are versatile and lightweight, making them easy to work with in a variety of settings. Paper-faced corners provide a seamless appearance with a smooth surface that is ready for painting or wallpapering.

It’s crucial to properly prepare the surface before applying plaster corners. If required, use a bonding agent, clean the walls, and make sure the corners are firmly fastened. For optimal results, apply plaster in thin, even layers and use a level to check alignment. Having well-finished walls will eventually pay off from installation efforts requiring patience and close attention to detail.

In conclusion, plaster corners are a useful addition to any project involving wall décor. They contribute to a polished finish, offer structure, and shield exposed edges. Your walls will look better and last longer if you choose the correct kind of corner and install it properly. These are professional-quality results that you can accomplish.

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Daria Yakovlev

Interior designer, author of online color design courses. I will help you create a harmonious interior using color.

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