Puttying drywall corners according to the rules

One essential step in finishing walls smooth and professional-looking is to putty drywall corners. Knowing how to properly putty corners can make all the difference in the outcome, whether you’re finishing up a renovation project or installing drywall for the first time.

It may seem difficult to get those crisp, clean edges, but with the appropriate technique and a few helpful pointers, you can create seamless corners that blend in flawlessly with the surrounding wall. Your drywall corners will look as professional as possible thanks to this guide, which will walk you through all the necessary steps and techniques.

Step Description
1. Prepare the Corner Ensure the drywall corner is clean and free of dust. Apply a corner bead if needed.
2. Apply the First Layer of Putty Spread a thin layer of putty along the corner using a putty knife. Smooth it out evenly.
3. Let it Dry Allow the first layer to dry completely before proceeding.
4.

Getting the job done

There are various steps involved in puttying drywall corners. This is how it appears:

Preparing the surface Here we clean the surface. After that, it is primed and we wait until it dries completely.
Applying the serpyanka For this, special mesh corners are available for sale. They must be purchased in advance. This will enhance the adhesion of the surfaces and allow you to maintain the correct shape of the corner.
Puttying the surface At this stage, we apply the material. No more than five mm is applied in one layer. And only after complete drying is the next layer applied.

Let’s now examine each step in greater detail.

The necessary tool

The tool must be ready before you can putty the corners of the drywall. Ultimately, there won’t be a later time:

  • Grinding float;
  • Electric drill with a mixer attachment;
  • A set of spatulas;
  • Sandpaper.

You will need to use the following tools to make the process of puttying drywall corners go more smoothly:

  • Non-woven tape, necessary for fixing the resulting structure.
  • "Serpyanka" is a construction mesh used to seal the internal corners of drywall.
  • Perforated corners. There are four types of such corners: plastic, adhesive, rounded and iron. Each of them can be used to finish external corners. To prevent deformation of corners in rooms intended for active activities, it is better to use rounded corners.

Choosing a putty

Make sure you select the appropriate putty before caulking the corners of the drywall. A sizable selection of dry building mixes are available from contemporary retail chains that specialize in the sale of building supplies. Because there are so many of them, it can occasionally be difficult to determine which particular putty is appropriate for a given kind of work:

  • Some are intended for finishing walls and ceilings, others – for slopes and cracks. Still others are needed solely for decorative purposes. It should be said that the cost of different types varies greatly.
  • Dry mixes will be much cheaper. This is largely due to their long shelf life. In addition, dosed use of dry mixes is allowed.
    In some places, you can level something, draw on it, and the remaining mixture can be used for emergency work. As for the finished putty, it is subject to various changes not for the better.

Note: You must take the "finish" if you are performing the final finishing. You won’t be able to smooth the surface with the initial one because it has a higher fraction.

Putty types vary depending on the application. They are classified as follows:

While it may appear difficult, puttying drywall corners is actually quite simple if you take the right approach. To achieve smooth, clean lines, it’s important to properly prepare the surface, apply the putty evenly, and use the right tools. Your drywall corners will be well-protected and professionally finished, ready for painting or additional decoration, if you follow these simple steps.

Finishing external corners

Here are some guidelines for puttying an external plasterboard corner that you should follow.

Attention: Proper installation of the reinforced corner is directly responsible for 70% of successful puttying of plasterboard walls’ external corners. You can use narrow aluminum perforated corners glued to the glue for further adaptation.

When completing the drywall’s outer corners, you should use the following technology:

  • The outer corner of the drywall must withstand small overloads and impacts. After all, very often, passing by the wall, we touch the corners, therefore, they must be resistant to such loads.
  • Drywall itself is not a very resistant material to mechanical impact. To strengthen it, in the process of finishing the corners, you should use plastic or iron corners.

  • Later, you need to apply the mixture. It is applied with a spatula from top to bottom, not forgetting to hold all the edges of the corner. You need to ensure that the first layer of putty is not too narrow.
  • After the corner has completely dried, it is cleaned with a spatula and they proceed to applying the next layer. When cleaning corners, you need to be extremely careful so as not to damage the rather fragile texture of the corner. Remember, it is easy to spoil it in autumn.

  • After the layer dries, sand the outer corners, and then the entire surface of the wall (see.How to sand walls after puttying and how to do it correctly).

Be mindful: When sanding, use construction seca. Using the largest cell first, rub until the smallest is used.

Making internal corners

Let’s now examine how to putty drywall’s inner corners. To successfully putty corners, you’ll need putty, mesh, and a circular spatula.

  • To prepare the putty, it must be diluted with water. In this case, it is necessary to strictly adhere to the instructions on the package.
  • Glue the corners with "Serpyanka". You need to ensure that its middle is located exactly at the joint.
  • A thin layer of the original putty is applied on top of either side of the corner. The applied putty is leveled with a spatula.

Gaining proficiency in puttying drywall

Video on the topic

Puttying plasterboard corners

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

How to putty plasterboard corners

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Veronica Gerasimova

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

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