Can Fogkum work for a drywall like that?

[Minonsson]

I have something like expanding foam and was thinking of using it as a quick fix for a big hole in a plaster wall like the one in the picture. What do you think of that idea?

Thanks in advance

 

[Johan456]

Yes, apply foam, let it dry, scrape off 10-15mm and repair with Gypsum mortar + filler.

 

[MagHam]

Foam works well in terms of durability. It's possible to cut and apply filler, etc.
BUT be careful as it expands. It can push out the wall and dent it.

 

[Fixarpappa]

Works like a charm!

 

[anis16]

Is it an interior wall? I would cut a piece of OBF or other board material, maneuver it so that it ends up behind the existing drywall and either glue it with hot glue or fasten it with drywall screws. Then fill it with plaster or something else that can be built up to 12mm. Lastly, apply a layer of regular wall filler when the entire surface is to be filled.

Foam sealant isn't very good to work with, it swells uncontrollably and is difficult to remove from surfaces where you don't want it.

 

[richardtenggren]

I think this approach looks smooth;
https://www.instagram.com/p/CEDTbz7nzym/?igshid=9sf06jm3tpfk

 

[anis16]

I think this approach looks smooth;
[link]

Looked smooth. The question is how stable it becomes with just putty as the adhesive. I would have tried with something that stabilizes inward.

 

[richardtenggren]

Looked smooth. The question is how stable it becomes with just filler as an adhesive. I would have tried something that stabilizes inward.

I don't know, but I think that seam strips are fastened only with filler, and they seem to hold well enough to fulfill their function.

The gypsum board itself can be seen as a sandwich construction where the paper is strong in the plane of the board, so there's no difference here, other than that it's now relying on the filler attachment and there's a local weakening perpendicular to the board. But those are just my thoughts

 

[Stensson11]

I have something like expanding foam and thought of using it as a quick fix for a large hole in drywall like the one in the picture. What do you think of that idea?

Thanks in advance

Here's how to do it: Cut the hole so it's square, screw in plywood pieces or similar - they are attached to the drywall. Cut a drywall piece that is screwed into the plywood.

 

[Minonsson]

Sometimes it works to test things with foam sealant, I guess. Forgot to share the result. Thanks for everyone's responses. Much appreciated.