When it comes to achieving a professional finish in plastering projects, using plaster corners is essential. These tools help create sharp, straight edges on corners, making your work look clean and polished. There are different types of plaster corners, including those with mesh, perforated ones, and corners made from various materials like metal and plastic.
Every variety of plaster corner has a unique set of advantages and applications. For example, mesh corners are excellent for preventing cracks and offer additional reinforcement. The purpose of perforated corners is to improve plaster bonding and guarantee a long-lasting finish. The decision between plastic and metal corners will rely on the particular requirements of your project, as each material has advantages of its own.
The quality of your plastering work can be greatly enhanced by knowing how to use these various types of plaster corners. When working on surfaces that are inside or outside
Type | Description |
Mesh Corner | Used for reinforcing corners and joints to prevent cracking. It’s flexible and can be molded to fit various corner angles. |
Perforated Corner | Has small holes to allow the plaster to bond better. It’s ideal for creating smooth, durable corners in plastered walls. |
Metal Corner | Provides strong protection for corners and is very durable. Often used in high-traffic areas where corners are prone to damage. |
Plastic Corner | Lightweight and resistant to moisture. It’s a good choice for areas where you need a cost-effective solution that still offers durability. |
- What is it intended for
- Varieties of corners for plastering work
- Metal
- Plastic corner
- A variety of shapes of plaster corners made of plastic (PVC) and metal
- Right angles for slopes
- Arched
- Universal
- With reinforcing mesh
- Combined type
- Perforated
- Paper
- Beacon corner for plastering
- How to properly install a plaster corner
- Grouting the corner and leveling the surface of the walls
- Typical errors in fastening and plastering
- Video on the topic
- Which perforated corners are better
- Using plastic corners in plastering
- WE PLASTER A CORNER (non-standard method)
- How to glue a perforated protective PVC corner! Perforated PVC corner! Protective corner!
What is it intended for
Plaster corners are a necessary component for finishing and repair work.
- leveling the surface before applying plaster, including corners in rooms;
- creation of limiters for uniform distribution of putty, primer;
- facing walls and partitions with ceramic tiles under plaster;
- strengthening external and internal corner spaces in the room;
- increasing the strength of the decorative finishing layer on arches, ledges and boxes;
- corners for plastering corners prevent the mixture from crumbling;
- aesthetic design of transition zones near walls and ceiling slabs;
- creation of an even junction of wall panels, window and door slopes;
- prevention of cracks and chips on surfaces;
- when applying plaster mixtures, corners are used as beacons.
Products are installed either on top of the plaster mixture or beneath it, depending on the degree of repair and the finishing design. Without corners, section joints may become jagged and uneven.
The finishing element is widely used, and options for attaching it to surfaces made of various materials have been developed.
Varieties of corners for plastering work
Plaster corners come in a variety of sizes (long and wide), strengths, purposes, and manufacturing materials. There are two possible designs for the perforated corner: internal and external. Plastic and metal products are included in the list of primary profile types.
Metal
Steel, aluminum, and galvanized alloys are the three types of alloys used to make metal corners. Products made of aluminum are strong, dependable when installed, and lightweight. Because aluminum resists corrosion and doesn’t add to the wall panel’s load, it is a popular choice for finishing work.
Products made of galvanized steel are stronger but more prone to corrosion. The components are utilized for interior design in spaces with low air humidity. Experts advise preserving the product’s integrity during installation and chopping it with metal scissors only to avoid rust formation.
When working with finishing mixtures based on acrylic or latex, metal components are utilized. Because metal is more durable than plastic, it is advised to install it in high-traffic areas.
Plastic corner
Plaster’s plastic corner is inexpensive, lightweight, and resistant to mold and corrosion. Elements are made from premium, long-lasting plastic. The products are not harmed by moisture and can be used in rooms with high air humidity. The finishing of facade structures can be accomplished with polymer-based corners.
Use a construction knife or stationery scissors when working with elements. The material retains its quality characteristics even after being bent in the desired direction and is simple to cut. But it’s important to consider that plastic products are typically thicker than metal ones.
A variety of shapes of plaster corners made of plastic (PVC) and metal
- arched;
- straight;
- universal;
- with reinforced mesh for plaster;
- combined;
- perforated;
- paper, etc..
Right angles for slopes
Plastic and metal alloys are used to create right angles. The product is shaped like a strip with a right angle bent in the middle. The profile edging has holes in it to make it easier to fix on the base and enhance adhesion properties. The polymer components measure one to 1.5 mm, while the metal element reaches 0.5 mm in thickness.
Plastic corners have the benefit of not corroding, which is why polymer elements are utilized for exterior work such as finishing facades. Such right-angled products can be as thick as 1-1.5 mm, which means the element isn’t good for surface puttying. But plastering is done using a plastic corner.
Arched
To facilitate easy bending when finishing arches and niches, arched elements are divided into compact sections. The side sections of arches, passages, and curved plasterboard ceiling structures on wall panels and ceilings are aligned using arched corners. The item is applied to both interior and exterior corners.
These components have a single side or sidewall perforation. Complex architectural structures can have even corners thanks to the segmental design.
- elimination of unevenness of the corner surface in arches;
- visual highlighting of an inconspicuous part of an arch or opening;
- elements do not require additional processing, are fixed on an adhesive base;
- if the work is performed correctly, the products retain the aesthetics of the arched opening for a long time (up to 50 years);
- a wide range of colors of plastic corners for arches allows you to implement complex design solutions.
For the last stage of finishing, the work can utilize corners that are mounted beneath the plaster layer and decorative elements that are plastered on. Plastic or metal alloy components intended for internal installation are frequently perforated. A variety of materials are used to create decorative corners, including metal, cork, and polyvinyl chloride.
Universal
Products that are universal can be used to edge non-standard areas of surfaces. They are made of plastic or metal alloys and have the shape of tape. The corners are as wide as 5 cm. The element’s bend line is in the center, and there is additional perforation in the corner. Because they are composed of premium plastic, the products will not break easily while in use.
With reinforcing mesh
For wet plastering, a corner with metal mesh is utilized. Mesh products are unique in that they have perforated pads that are roughly 2-4 cm wide. These components allow you to level surfaces in various configurations.
Plastering over insulation is one of the many facade finishing techniques that use this material. The mesh is firmly fastened to the wall panels and permits the mixture to flow through. It is advised to use the elements when applying a thick layer of plaster. Mesh inserts give the structure more strength and enable you to cut even corners on surfaces with intricate configurations.
Combined type
Different materials are used to make combined type corners. Among the most well-liked ones are metal profiles with thick paper borders. The products work best for leveling wall panel inner and outer corners in preparation for puttying. Adhesive mortar is used to secure the components.
Fiberglass mesh and aluminum or galvanized metal combine to form combined corners. The sturdy products are utilized to precisely outline corners on the exterior of the wall. You can create even joints between surfaces made of various materials by using profiles.
Plastic mesh can be used to complement the element. These products strengthen the base in addition to leveling corner areas.
Perforated
To align the inner or outer corner areas, plaster is applied with perforated corners. The products are widely used, readily installable, and in high demand. The components are made for corners and come in aluminum, galvanized, and plastic varieties.
Products with varying widths are generated. It is necessary to cut the material for exact alignment. Metal scissors are utilized to adjust metal components. Plastering can make use of galvanized profiles as beacons due to their increased rigidity. To align the base and get rid of cracks, putty is applied to the perforated corner.
Paper
Paper corners are available in rolls and are constructed like masking tape. The thick paper strip has a folding mark in the middle of it. The canvas can be made on a self-adhesive base or with fine perforation. Paper angles are used to prepare surfaces made of other materials and corners of drywall walls for the final putty layer to be applied.
Plastered surfaces are also prepped for painting using these products. Usually, painting tape is adhered to the putty.
Paper corners, however, are not able to undo significant deformations of corner sections. Thus, it is essential to use sturdy plastic or metal components.
Beacon corner for plastering
When leveling the base in preparation for plastering, corners can serve as beacons. The necessary level for placing the mixture is created with the aid of the elements. After application, extra plaster mortar is scraped off along the guide rails with a rule. Consequently, the surface becomes level. Beacon corners are constructed from galvanized metal or plastic. L- or T-shaped cross-section is the norm. Beacon heights range from 3 to 10 mm. The necessary putty layer thickness determines the indicator.
- easy installation;
- can be used in areas of small area;
- universal in use for floors, wall panels, ceilings;
- do not deform during operation;
- there is no need to remove them from the wall after finishing is completed.
When plastering, whether you’re working on walls, ceilings, or any other surface, using plaster corners is crucial to getting crisp, clean edges. There are several varieties of these corners, including mesh, perforated, metal, and plastic, each intended for a distinct purpose and material. Plaster corners can vary greatly in strength and appearance depending on how they are installed and what kind you choose. Following these simple steps will guarantee a polished finish and long-lasting effects.
How to properly install a plaster corner
- products are placed on a solid area of the panel;
- Before installing the element, the area is treated with a primer;
- profiles are recorded by beacons;
- the solution is filled with a dense layer of the perforated surface;
- when placing an element vertically, a building level is used to level the area;
- when covering with a thin layer, the corners are fixed using dowels or self-tapping screws;
- First, the main surfaces are treated, corner surfaces are plastered at the final stage;
- The corners should not protrude over the plaster layer, so if there are on the surface of such parts, they are closed with aligning mixtures or sealant.
Apart from the standard guidelines for installing corners, there are specifications for the sequence in which the internal and external elements must be fixed.
The following procedure must be followed in order to fasten the corner in order to plaster internal corners:
- the plaster solution is applied by spraying, then the base is primed;
- the area is leveled using a rule with the direction of movement from the corner;
- marking is carried out on the treated surface, then the corner is formed.
Grouting the corner and leveling the surface of the walls
Plastering is done in phases in the areas where the corner pads are located after the plaster mixture has hardened:
- using a trowel placed at an angle of 30-40 °, grouting the base is carried out;
- then a solution is applied near the profiles, which is smoothed out using a rule to remove excess mixture;
- the surface is smoothed out with a float;
- The grounds are leveled, while the corners should not protrude;
- polymerization is carried out on the dried wall panel and the final grouting begins;
- internal corners are rubbed using a float with a sponge surface.
Typical errors in fastening and plastering
- Perforated corner for plastering is installed without taking into account the technical characteristics. To prevent possible alteration of the surface, it is recommended to assess the technical condition of the panels and the places where they are joined to the floor, ceiling slabs.
- In the absence of priming, the material of the wall or ceiling slabs will show through the plastered surface. Therefore, it is necessary to select a primer for the type of base.
- A mistake is to process surfaces in one room with long breaks. Prying different areas is required sequentially in a limited time for high -quality and durable repair.
- Plastic elements are fragile and will not provide a durable plaster coating when installed in high-traffic areas. Experts recommend installing metal corner elements in public buildings and residential hallways to prevent plaster from crumbling and the base from deforming.
- It is not recommended to cut galvanized metal corners into pieces using a grinder.
Plaster corners are a necessary step in plastering projects to achieve durable and smooth edges. These corners shield the edges from deterioration over time in addition to serving as a guide for applying plaster.
Choosing a corner that is mesh, perforated, metal, or plastic has distinct advantages that are appropriate for various applications. Metal corners provide strength; plastic corners are lightweight and corrosion-resistant; mesh corners are excellent for reinforcement; and perforated corners improve plaster adhesion.
The type of plaster, the intended finish, and the area in which it will be used should all be taken into account when choosing the ideal plaster corner. The corner’s longevity and efficacy depend on proper installation, so make sure to give it plenty of support before plastering over it.
Understanding the various plaster corners and their applications will help you achieve a long-lasting professional finish that will strengthen and improve the appearance of your plastering work.