Filling plasterboard

[Claes Sörmland]

Should the plug be inserted at the same time as the filler and harden there, or should I drill with a drill when it's dried and insert the plug just as usual?

Optional!

 

[Mikael_L]

OK, first of all, do not drill with hammer function in brick or plaster.
Use a concrete drill without hammer or perhaps even better a multi-material drill
https://www.bauhaus.se/borr-bosch-multi-const-5-5x50x85mm
https://www.jemfix.se/universalborrsats-irwin/3110/9016657/
there are several brands that have similar

Then, as PNO writes, it should ideally be repaired with material that achieves the same strength and hardness (or possibly weaker) as the old plaster, otherwise it breaks at the joint between old and new.
But gypsum plaster can be quite good and above all simple, and since I have a bag of that myself, I would probably be comfortable using it.
I also have husfix, but I believe husfix becomes too hard once cured, so I would rather choose gypsum mortar.

Then regardless of what you plaster with (gypsum, husfix, plaster C, etc.) all materials that cure with a cement reaction, or gypsum reaction, you should dampen the old surfaces first, i.e., both the brick and surrounding plaster, almost soaking them, so bring out the spray bottle with water.

Then I see two paths to take:
1. Plaster/repair the damaged area, then drill, now carefully.
2. Drill completely so that anchors "fit", then fill again and immediately press the anchor into the right place in the uncured mass. Let cure and then screw in. This method usually works well with gypsum mortar.

 

[Claes Sörmland]

Then, as PNO writes, ideally it should be repaired with material that has the same strength and hardness (or possibly weaker) as the old plaster; otherwise, it will break at the joint between old and new.
But sure, gypsum plaster can be quite good and above all simple, and since I myself have a bag of it, I would probably have opted for convenience and used it.
I also have Husfix, but I think Husfix becomes too hard when it sets, so I would rather choose gypsum mortar.

The thing about weaker on stronger is mainly a rule for outdoor plastering where the seasons cause the materials to move. It doesn't matter for a small hole like this indoors. Moreover, the underlying brick is much stronger than the plaster, and the Husfix will adhere to the brick surface.

But if you have gypsum at home and no Husfix, then go for that instead!

 

[Frosse]

The concept of weaker on stronger is mainly a rule for outdoor plastering where the seasons cause the materials to move. It doesn't matter with a small hole like this indoors. Additionally, the underlying brick is much stronger than the plaster and the housefix will adhere to the brick surface.

But if you have gypsum at home and no Housefix, then use that instead!

Optional!

Still need to go and buy some of it. But I'll do the following

• Remove all loose plaster
• Vacuum the hole
• Moisten the brick wall and the outer side of the gypsum wall with water
• Fill the entire hole with filler from byggmax
• Let it dry for 40 hours
• Screw with a drill The size of the plug
• Insert the plug
• Attach the bracket with screws

 

[Frosse]

That rule about weaker on stronger is mainly for outdoor plastering where the seasons cause the materials to move. It doesn't matter for a small hole like this indoors. Additionally, the underlying brick is much stronger than the plaster, and the house fix will stick to the brick surface.

But if you have gypsum at home and no House fix, then use that instead!

Filler was out of stock so they thought this could work.
What do you think?
https://www.byggmax.se/reparation-kakelfix-illbruck-p18098

 

[Frosse]

OK

Then, as PNO writes, you really should repair with materials that have the same strength and hardness (or possibly weaker) as the old plaster, otherwise it will break at the joint between old and new.
But sure, gypsum plaster can be quite good and especially simple, and since I myself have a bag of it, I would probably be comfortable using this.
I have "husfix" too, but husfix I believe becomes too hard once it has set, so I would rather choose gypsum mortar.

Then regardless of what you plaster with (gypsum, husfix, plaster C, etc.) all materials that set with a cement reaction, or gypsum reaction, you should wet the old surfaces beforehand, i.e., both the brick and surrounding plaster, almost soak it, so get out the spray bottle with water.

Then I see two ways to go:
1. Plaster/repair the damaged area, then drill, carefully now.
2. Drill completely so that plugs can "fit", then fill again and immediately place the plug in the correct spot in the unhardened mass. Let it set and then screw it in place. This method usually works well with gypsum mortar.

Filler was out of stock so they thought this might work.
What do you say?
https://www.byggmax.se/reparation-kakelfix-illbruck-p18098

 

[vectrex]

Filler was out of stock so they thought this could work.
What do you say?
[link]

At least as good as husfix. Go for it!