ᐅ Primed Gypsum Plaster in New Construction — Silicification?
Created on: 24 Jan 2021 10:04
J
jukafe80
Hello everyone,
The handover of our house is coming up soon. We will be doing the painting and wallpapering ourselves and have already purchased the materials. Accordingly, I have been watching tutorials on how everything works. One question still hasn’t been answered for me, which concerns the pros and cons of gypsum plaster. We will be priming it with Brillux wall primer. And then? Can you basically apply anything you want after priming? I’m asking because of all these silicification processes. I know many people just paint directly with emulsion paint, but that’s generally not recommended. But what if you prime first?
I would appreciate your answers, thanks in advance.
The handover of our house is coming up soon. We will be doing the painting and wallpapering ourselves and have already purchased the materials. Accordingly, I have been watching tutorials on how everything works. One question still hasn’t been answered for me, which concerns the pros and cons of gypsum plaster. We will be priming it with Brillux wall primer. And then? Can you basically apply anything you want after priming? I’m asking because of all these silicification processes. I know many people just paint directly with emulsion paint, but that’s generally not recommended. But what if you prime first?
I would appreciate your answers, thanks in advance.
F
fach1werk24 Jan 2021 15:32This is not a lateral entry but something that can still be properly learned only in Munich or Italy, and not at a basic trade school but in the master craftsman class, because Bavaria still has Lüftlmalerei (a traditional mural painting technique).
Experiments on gypsum board sample panels would confirm that mineral-based coatings, even after 2–3 weeks under good climatic conditions where crystal formation must be complete, remain almost entirely washable. Gypsum does form crystals, that is true. Its crystalline bonds become shorter each time it gets wet, making it softer. This can be clearly seen in very hard mold gypsum, for example, which is used to make molds for roof tiles. These molds can only be used for a few weeks. They also cannot be re-hardened with silica, as is possible with classic mineral materials—see historic monument restoration. I have had the pleasure of working on projects involving such historic materials several times.
The anti-mold effect can be maintained in the mixture, but re-silicification cannot. As far as I understood, this was about re-silicification. Our trades could have definitely benefited from each other, and I believe that the term “mineral-based” may be more narrowly defined in my field but was still applied appropriately here.
Best regards
Gabriele
Experiments on gypsum board sample panels would confirm that mineral-based coatings, even after 2–3 weeks under good climatic conditions where crystal formation must be complete, remain almost entirely washable. Gypsum does form crystals, that is true. Its crystalline bonds become shorter each time it gets wet, making it softer. This can be clearly seen in very hard mold gypsum, for example, which is used to make molds for roof tiles. These molds can only be used for a few weeks. They also cannot be re-hardened with silica, as is possible with classic mineral materials—see historic monument restoration. I have had the pleasure of working on projects involving such historic materials several times.
The anti-mold effect can be maintained in the mixture, but re-silicification cannot. As far as I understood, this was about re-silicification. Our trades could have definitely benefited from each other, and I believe that the term “mineral-based” may be more narrowly defined in my field but was still applied appropriately here.
Best regards
Gabriele
First of all, thanks for your replies. It’s clear that there are many options. Or, as Fernandel once said: “Whatever may come, there’s always someone who knows better.”
For non-experts like me, much of the technical language is simply gibberish.
My question was basically whether the primer or base coat delays, reduces, or prevents any processes that cause paint issues. I just don’t really want mold to develop in a few years that I could have avoided (aside from ventilation, of course).
For non-experts like me, much of the technical language is simply gibberish.
My question was basically whether the primer or base coat delays, reduces, or prevents any processes that cause paint issues. I just don’t really want mold to develop in a few years that I could have avoided (aside from ventilation, of course).