Do I have to wait a month before filling on Finja Laga Vägg?

[phosun]

I have embedded boxes and VP pipes for internet and antenna in a lightweight concrete wall. Bought Finja Laga Vägg, seemed cost-effective as a filler. There were no limitations stated on the package, but when I finally (after the work) browsed Finja's website, I found a document that said "Newly cast concrete should not be plastered over within a month after casting."

Is this really true and if so, why?

http://www.finja.se/laga-vagg.533707.produktinfo

 

[SBH]

have you filled with finja laga vägg?
concrete on a wall is not easy

 

[phosun]

have you filled with finja laga vägg? concrete on a wall is not easy

Yes, I have. It was no problem. But what do you mean is the problem?

 

[SBH]

well then you probably haven't used concrete??

 

[SBH]

from http://www.finja.se/App_Resource/Product/PDF/PB/533707-1.pdf#view=fit

Aftercare
When the filler is semi-cured, it is easy to cut and shape. Scrape off any excess material as soon as the compound has hardened slightly, this saves a lot of sanding work.

Coating
Finja Waterproofing can be applied when the surface is dry, normally 1–3 hours after filling. For moisture-sensitive surface layers, follow the supplier's instructions.

 

[phosun]

I left a few mm margin for regular filler which will then be wallpapered. Don't see any problems with that.

But I still don't understand why I have to wait a month?

 

[SBH]

I left a few mm of margin for regular putty, which will then be wallpapered. I see no problems with that.

But I still don't understand why I have to wait a month?

have you used concrete? no!
okay on Finja's product page this putty is under concrete
but also sand, cell plastic, machines are there

 

[Helioz]

I left a few mm margin for regular filler that will be wallpapered afterwards. See no problems with that.

But I still don't understand why I have to wait a month?

You have just misunderstood the instructions, they mean that "Finja Laga Vägg" should not be used on newly cast concrete slabs/wall elements. No problem for you to proceed with filling if a day has passed.

 

[phosun]

Aha, I understand now! Thank you for the answer.