Filling screw holes in wallpapered concrete walls

[margorjon]

It was mostly that I think I won't need 1L, or what is the expiration date on one of those?

 

[Peter2400]

It was mostly that I don't think I'll need 1L, or what is the expiration date on one of those?

Even when it has dried, it has poor water resistance, so you can easily drop in a little water and stir until everything is like stiffly whipped cream again.
I think you can keep the jar alive for many years if you do that.

 

[margorjon]

Okay, that was great!

 

[Joelbit]

Call me extreme if you like, but I am tired of all these sagging masses, especially Husfix. Now I use Biltema's cheap anchor mass for such work and you can even drill into it as if there was never a hole there. However, for real work, I only use Sormat anchor mass.
http://www.biltema.se/sv/Bygg/Kemikalier/Ovrigt/Ankarmassa-2000028382/

 

[jonko]

OSF drops extremely limited. Anchor mass is good for many things, but I wouldn't use it to "fill" drilled holes.

 

[Joelbit]

I wouldn't exactly call filling small deep holes spackling. Anchor mass is specifically made to fill small deep holes without sinking. Above all, you can completely fill the hole from the bottom and the consistency is designed to adhere to cement/concrete without applying pressure.

 

[Ropia]

Wall filler, gently work it in and you can wipe off spills on the wallpaper with a dampened cloth, it can handle a slightly damp cloth without staining/expanding. Take your time and be careful and thorough to achieve a good result. Tube wall filler is easy to reseal and is inexpensive. If it shrinks, wait until it is completely dry and apply again.

 

[jonko]

I would not call filling up small deep holes plastering. Anchor compound is specifically made to fill small deep holes without sinking. Above all, you can fill the hole completely from the bottom and the consistency is designed to adhere to cement/concrete without applying pressure.

Anchor compound is meant for fastening, but sure if you have a good wall it works to fill with it, but if the wall is for example aerated concrete, you will have a bit of hell if you ever want to drill in a filled hole again.

I'm not saying your way is wrong but I would probably not do so except in certain specific cases.

 

[Joelbit]

Anchor compound is meant for fastening, but sure, if you have a good wall it can work to fill with it, but if the wall is made of, for example, lightweight concrete, you'll have a bit of a hell if you ever want to drill in a filled hole again.

I'm not saying your way is wrong, but I would likely not do it except in certain specific cases.

Sure, anchor compound is primarily for fastening, but I normally wouldn't use Biltema's ;-) I'm mostly tired of filler sinking and cracking. And it's often too soft to make a good new fastening if needed.

 

[margorjon]

And how do you know if it's lightweight concrete or not?

When I called the custodian, I got the vague answer that "there is concrete in practically every wall" or something like that.