Creating an even and correct contour of the walls – how to putty the corners of drywall? Expert advice

Getting the corners exactly right is essential to creating smooth, perfect walls in your home, especially when using drywall. The durability and final appearance of your walls can be greatly improved by knowing how to properly putty the corners of drywall, whether you’re starting from scratch or remodeling an existing space.

If not handled properly, drywall corners—where two panels meet—are prone to cracks and flaws. When these corners are puttied correctly, a method is used that not only guarantees a smooth finish but also strengthens the walls’ structural integrity over time.

Experts advise beginning with high-quality resources. Better adhesion and a lower chance of cracks developing later are ensured by using premium joint compound made especially for drywall corners. Additionally, getting smooth and even finishes is made easier with the right tools, like a flexible putty knife or a corner trowel.

It is imperative to appropriately prepare the corners prior to applying the joint compound. This entails making certain that the drywall’s edges are clean, smooth, and devoid of any sharp edges or debris. The basis for a finish that looks professional is proper preparation.

Applying the joint compound calls for patience and skill. To strengthen the joint, start by putting a thin layer of compound along the corner. Then, insert paper or fiberglass tape into the wet compound. Subsequent layers should then be applied carefully, with the edges feathered outward to blend in with the surrounding wall surface. By layering, a sturdy, smooth corner that is less likely to crack is created.

Lastly, sand the corners lightly to achieve an impeccable smooth finish, following the manufacturer’s instructions regarding the appropriate amount of drying time between coats. In order to achieve a smooth transition between the wall and the corner and to make sure that your walls look professionally painted after painting, this step is essential.

These professional puttying tips and techniques for drywall corners will help you create walls that are long-lasting and look fantastic. The ability to properly putty drywall corners raises the standard of any space and results in a long-lasting, aesthetically pleasing finish.

Features of puttying internal and external (external) corners of walls

Preparatory work

When it comes to room arrangement, working with corners is the most laborious task. You must be mindful of the surrounding temperature. In order to prevent drafts, first close all windows and doors. This is required to prevent the seam from drying poorly and to safely harden the mixture.

Poor air circulation causes them to harden and swell in those rooms. The end effect is a flimsy foundation that eventually fractures. In the working area of the room, a temperature regime of at least 10 degrees Celsius must be maintained. Seams harden poorly and very slowly below zero degrees.

Reinforce the joints if the work is being done in a newly constructed home to prevent shrinkage. The putty layer is covered with reinforcing tape. Meshes strengthen the plasterboard structure and contribute to aesthetically pleasing corner joints.

The putty layer is kept from deforming by all of these preparatory steps. Elegantly adorned corners that adhere to all regulations won’t fear variations in humidity, temperature, or mechanical shocks.

Necessary tools and materials

You must get the supplies and tools ready in order to putty the corners correctly:

  1. Electric drill with a mixer attachment. This tool is necessary for high-quality mixing of the putty mixture. When using it, it is possible to avoid lumping, heterogeneity of the mass.
  2. Spatulas of different sizes. For work, you need to stock up on a wide, medium and narrow tool. Larger spatulas perform the main steps of applying the mixture, and smaller ones form the texture in hard-to-reach places.
  3. Level. It is used to measure the evenness of corner joints.
  4. Container for putty.
  5. Brushes of different sizes for leveling the texture.

You will need to buy the following supplies in order to work:

  • Reinforcing corner mesh. It will be necessary to glue it around the internal joints to create the necessary texture.
  • Corners of different sizes — perforated, all-metal, plastic. Each of them plays its own role in forming the evenness of the corners. For example, plastic corners bend well and take the necessary shape, which is required in the most obtuse or sharp places.
  • Primer. Necessary for coating the base, giving it greater porosity. Priming increases adhesion: the adhesion of the wall to the putty will occur more tightly and efficiently.
  • Putty mixture. You can buy a dry version, or you can make it yourself, following the instructions.

Choosing a putty

Various kinds of putty are available from manufacturers of dry mixes.

You can select the composition and brand based on the kind of work being done, how well the corner joints are formed, and other considerations.

Various putties based on their characteristics.

Knauf Uniflot

This is a general-purpose, moisture-resistant drywall mixture. It is suitable for use in highly humid rooms. She possesses good strength, comparable to the ingredients in cement. This plaster can be applied to drywall sheets that range in thickness from 9.5 to 12.5 mm because it is lightweight.

Putty does not require reinforced tape, dries rapidly, and is not affected by moisture. A plastic seam forms after drying that is impervious to cracking. After applying the completed solution to the seam, it takes 25 to 30 minutes for it to start solidifying.

Knauf Fugen

Gypsum putty for corners on interior work. A barrier against moisture is created by special additives. Reinforcing tape is used to strengthen drywall joints. The putty mixture’s fine-grained consistency enables it to be applied to a 1 mm thick layer of drywall. The thickest application that can be applied is roughly 10 mm.

Maintain the room’s humidity within tolerable bounds while working. It shouldn’t be any colder than +10 degrees.

The mixture takes around three minutes to harden, during which time the wall must be covered with the entire solution.

Semin

Low temperatures and high humidity are favorable conditions for the mixture. With extra support, it solidifies fast. accessible as a paste and as a dry mixture. It requires the use of reinforcing tape and a minimum of two putty layers to function. Use sandpaper to level after it has dried.

JS weber vetonit

The polymer putty in its final form. The universal composition inhibits the formation of cracks and has good adhesive qualities.

One benefit of the putty’s ground marble content is that it allows you to apply finishing touches like paint and wallpaper right away.

Polymer putty mixtures shouldn’t be used in highly humid rooms since they are not moisture resistant.

Volma seam

Composition made of gypsum; suitable only for interior work involving corners. Cracks and flaws can be sealed with a thin layer. Up to 5 mm of flaws can be concealed. It is possible to work with gypsum mortar in air temperatures ranging from 5 to 30 degrees Celsius. There may be more humidity than usual, but this won’t change the composition’s quality attributes.

How to form corners with your own hands?

Working with both internal and external corners is essential. In order to align the external ones along the joints, the excess must be cut off with a knife or stripped with a plane. A thick layer of primer is applied to the entire cleaned surface. Prime two or three more times if it absorbs quickly, but only after the preceding layer has fully dried. There is a 3-5 mm layer of applied mass.

It is necessary to apply and press the steel angle into the plaster mass at the joint. The overlay is leveled with great care. The overlay should be trimmed to height for a brief duration. The alignment of one corner is completed before moving on to the other. Using a narrow spatula, apply the composition over the corner in a wider, thicker layer.

After removing extra material, smooth the surface with a wide spatula.

The building level must inspect the quality of the work. To ensure that the surfaces are perpendicular, use a square.

The pattern for sealing internal corners is as follows:

  1. The adhesive mixture is applied. Liquid putty or PVA with acrylic paint is applied to the treated joining part.
  2. Carefully glue the corner with paper tape and self-adhesive adhesive mixture.
  3. One side of the corner is puttied. Perfect leveling can be achieved by working with a wide spatula.
  4. Proceed to puttying the remaining surfaces. Convenient to use an angled spatula.

Installing drywall is just the first step toward having smooth, polished walls. Tie up the corners correctly is one of the most important steps in this process. By completing this task, you can avoid seeing joints and cracks in the drywall by ensuring a smooth transition between different sections.

Using a putty knife, first apply a thin layer of joint compound along the corner. To insert paper or metal tape into the wet compound, use a corner trowel that has been specially made. By strengthening the corner, this tape lowers the possibility of further cracks. Before continuing, smooth out any extra compound and allow it to dry fully.

Apply additional coats of joint compound after the first layer has dried, blending the edges outward to match the wall. In order to accomplish a seamless transition, each layer needs to get gradually wider and thinner. To ensure a perfect finish, lightly sand in between coats to remove any imperfections.

When puttingtying drywall corners, precision is essential. Take your time to paint the surface evenly because imperfections will show through. Not only can properly puttying corners improve the visual appeal of your walls, but it also increases their longevity and durability.

The following is the thesis statement for your paper: Achieving clean, defined corners during drywall installation is essential for a polished appearance. This post offers step-by-step guidance from a professional putter on how to apply putty and smooth out the corners of drywall. Readers will gain useful advice on how to ensure their drywall corners are perfectly finished, improving the overall quality and appearance of their renovation projects. This includes everything from crucial preparation steps to in-depth application techniques.

Video on the topic

Part 7. Puttying – internal and external corners of drywall. What to do and what NOT to do!

Puttying external corners

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Fedor Pavlov

Interior designer, author of books on residential design. I will help you make your home not only functional, but also beautiful.

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