I have a 1930s basement where plaster has fallen (and I have chipped) down the bottom 60-70 cm along about a 5-meter-long exterior wall. Behind the plaster, it's sandy/loose. Would it be possible to apply a skim coat (perhaps max 3 cm) with HusFix? I've read that it can also be sanded.
I don't care if there are cheaper products, I want it to be as good/easy to fix as possible.
I've read that you can use a dust binder (e.g., BetSil) to some extent to reinforce the surface of plaster/concrete. Would it be a good idea to spray on a dust binder before applying HusFix to get a slightly firmer surface behind?
I will paint with some kind of diffusion-open paint afterward.
