How to cover or seal plasterboard corners on the walls: is it possible to glue serpyanka and when is it worth puttingtying?

Plasterboard corners can be difficult to cover or seal, particularly if you want a smooth, long-lasting finish. Knowing the right method is crucial to completing home improvements correctly, regardless of experience level.

Many people want to know if puttying or another more labor-intensive method is necessary, or if it’s just possible to glue serpyanka tape over the corners. The degree of finish you’re going for and the state of your plasterboard will determine the answer.

We’ll go over when to use serpyanka and when it makes sense to go the extra mile and apply putty in this post. By the end, you’ll know exactly how to tackle those challenging corners and pull off a polished appearance.

What to do with drywall joints on the wall

Navigating pages

A sheet of gypsum plasterboard is a common finishing material.

Its attributes make it unique in numerous ways. It can be used to produce arches, furniture, multi-level ceiling structures, and level walls.

Seams show up after gypsum plasterboard sheets are installed. The following describes how to handle the drywall joints on the wall and how to complete the work.

When drywall joints appear on the wall

Gypsum plasterboard sheets can be worked with using any of the following techniques:

  • Frame installation of gypsum board;
  • Frameless method of fixing drywall to the surface.

The frame method involves using extra materials for sheet cladding and metal profiles to create a sheathing. Although less common, wooden slats are also utilized because wood is a fickle material that needs specific conditions to be worked and processed.

The frameless method entails more than just adhering sheets to the base with different adhesive combinations.

In both situations, seams—the space between two sheets—appear after the gypsum plasterboard sheets are installed on the base.

The joint needs to be properly engineered:

  1. the gap between the sheets must be no more than 2 mm;
  2. there should be a chamfer – a kind of groove along the entire border. The plasterboard sheet has a rounded edge, but if the sheet is cut, the edge is immediately cut off at 45 degrees with a plane (milling cutter). Masters, in a hurry or because of laziness, do not create this chamfer. Then you need to make a recess on the borders of the sheets yourself with a construction knife.
  3. The joint on the gypsum board should be smooth, without cracks, deformation.

The chamfer is a crucial component. It makes the plasterboard surface more rigid. A correctly sealed joint ensures the stability of the entire construction.

How to seal

Three steps are involved in sealing joints on a plasterboard surface:

  1. Purchase of materials and collection of a set of tools.
  2. Preparation of the seam for reinforcement.
  3. Step-by-step work plan.

You’ll need the following tools to reinforce the joints:

  1. brush;
  2. spatula;
  3. clean container for mixing the mixture;
  4. construction knife with a sharp blade.
  5. Sandpaper.

Supplies required:

  1. primer;
  2. reinforcing mixture;
  3. reinforcing tape, angle (aluminum corner profile PU 25×25);
  4. clean water at room temperature;
  5. mixture for joints.

Once you have gathered all the necessary items, you can start working with the joint in preparation. It involves multiple steps:

  1. The seams must have a chamfer, be clean. With a brush, clean the border of the sheets from dust, carefully remove small gypsum stones.
  2. Coat the seams with a clean brush and primer mixture. This must be done carefully so that the primer fits well into the seam. Also treat the corners of the plasterboard structure.
  3. You need to give time for the primer mixture to dry.

Move on to the main work once the joint has dried.

To accomplish this, dilute the joint reinforcement mixture in accordance with the package’s instructions. Purchase KNAUF Fugen mostly.

Next, using a medium-sized spatula, apply a thin layer of the mixture to the joint. Place the tape over the top and center it along the seam with glue. Gently press it into the wet putty with a clean spatula to gather any excess.

Applying the same mixture to the tape is the next step. without letting it dry first.

The fasteners are covered with the putty that is left. The screw heads are one millimeter "recessed" into the drywall. Every location receives a primer treatment.

Methods for caulking the joints

KNAUF To seal joints without the need for reinforcing tape, use the Uniflot mixture. Its variations

  • The strength of the putty is comparable to cement.
  • It is light in weight, so it is used on drywall surfaces.
  • The putty does not allow water to pass through and does not absorb water.

One layer of the diluted solution is applied to the joint. Two layers are applied if there is a 2 mm space between the plasterboard sheets. After working with the mixture for twenty-five minutes, it solidifies.

To strengthen the structure of a gypsum board wall where you intend to hang a heavy object, experts advise combining this putty with KNAUF paper tape.

Vetonit made by JS Weber is another putty mixture. It is composed of polymers and sticks firmly to the plasterboard surface.

The same basic idea behind KNAUF UNIFLOT applies here. Experts advise against utilizing putty mixtures without reinforcing tape, though.

Gluing with serpyanka in the corners of plasterboard walls

Because the plasterboard structure’s corners bear a lot of weight, they are carefully reinforced.

Internal corners may distort as a result of the building’s subsidence.

Mechanical impacts are possible on external corners.

The interior corner is thoroughly primed and dust-free before serpyanka is applied.

Putty on top of the serpyanka after using the mixture to strengthen the joints.

Does grouting the joints have to be done?

Following the drying of the plasterboard wall’s seams, grouting is done. This must be completed:

  1. The remaining stones from the mixture will interfere with subsequent work and may ultimately spoil the appearance of the room.
  2. Grouting must be carried out to achieve a smooth surface.

Using sandpaper or a grinding machine, grout is applied to a dry surface. Use a lamp for convenience, so you can see all the flaws.

The surface is left clean and smooth after the work is completed.

It’s crucial to select the appropriate technique when caulking or sealing plasterboard corners on walls to guarantee longevity and a smooth surface. Serpyanka tape works best when combined with putty to provide maximum corner reinforcement. Strong enough glue might not be enough, especially in places where walls move easily or are subject to heavy traffic. Serpyanka and putty together make for a more durable, crack-resistant corner, making it a better long-term option for a neat, polished wall finish.

When to start subsequent work

Everything needs to be completely cleaned of dust after grouting and reinforcing the joints, and only then can work on the project begin.

The gypsum boards are completely covered with a finishing putty solution. Sandpaper and a grinding machine are used to remove any remaining small stones and other imperfections from the surface once it has completely dried.

The surface is primed once more prior to applying a decorative coating (paint, wallpaper, decorative plaster, or tiles).

Proposals from specialists:

  1. After grouting, small cracks may appear on the plasterboard surface. This happens due to temperature changes. If cracks are found, they should be covered with a thin layer of joint filler.
  2. When the soil moves or the house subsides, cracks appear in the corners. They must be reinforced and then filled.
  3. The packaging of fillers often has the inscription: "Use without reinforcing tape". To achieve strength, it is worth using tape for plasterboard joints.

Given everything mentioned above, it is obvious that the joints need to be strengthened using putty and tape meant for this purpose. For a smooth finish, joints must be grouted, and corners need to be reinforced with an angular profile and tape that has a metal insert.

Method When to Use
Serpyanka Tape Use serpyanka tape when you need extra reinforcement for corners. It"s ideal for preventing cracks in areas prone to movement or settling.
Putty Apply putty when the corners are relatively stable. It provides a smooth finish and is best used for minor imperfections or when you need a clean, seamless look.

For a smooth, polished finish, plasterboard corners must be properly sealed or covered. Depending on the circumstances, you may decide to putty instead of using serpyanka tape. Serpyanka is a sensible option in many situations because it works well for strengthening corners, particularly in areas where you expect some movement or cracking.

However, a well-applied layer of putty may be enough to create a seamless corner in areas where the plasterboard is already stable. In the end, the choice is based on how well-maintained your walls are and how much durability you need. You can select the best approach to guarantee an impeccable outcome by thoroughly evaluating every angle.

Your walls will look better overall if you take the time to prepare and apply the proper materials, which will pay off in the form of a long-lasting and attractive finish.

Video on the topic

How to seal joints on plasterboard

It"s simple! We install serpyanka on plasterboard.

How to properly seal joints of plasterboard?

What interior style do you like the most?
Share to friends
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.

Rate author
Vash-Variant.com
Add a comment