Hello everyone,
The lime-gypsum plaster was applied in October/November (the screed and underfloor heating are still to be done). Today, we wanted to remove some outlet covers. When knocking off the plaster, it crumbles into fine powder (like falling sand). Is it normal for this type of plaster to be so soft? Even the slightest impact would cause damage, wouldn’t it? Should we have used gypsum plaster instead, or is this a quality issue? (In the bathrooms, there is lime-cement plaster, which is noticeably harder but also partly crumbly when chipped off).
Wintersonne
The lime-gypsum plaster was applied in October/November (the screed and underfloor heating are still to be done). Today, we wanted to remove some outlet covers. When knocking off the plaster, it crumbles into fine powder (like falling sand). Is it normal for this type of plaster to be so soft? Even the slightest impact would cause damage, wouldn’t it? Should we have used gypsum plaster instead, or is this a quality issue? (In the bathrooms, there is lime-cement plaster, which is noticeably harder but also partly crumbly when chipped off).
Wintersonne
bauenmk202019 Mar 2020 11:23I am curious about what these yellowish-brown particles on the plaster are?
The plaster here hasn’t been smoothed out yet, right?
We want our lime-gypsum plaster to be relatively smooth and initially not use wallpaper. How will you be treating your plaster further?
The plaster here hasn’t been smoothed out yet, right?
We want our lime-gypsum plaster to be relatively smooth and initially not use wallpaper. How will you be treating your plaster further?
W
Wintersonne19 Mar 2020 11:23Thank you all for the feedback! How sensitive it really is will probably only become clear over time, as the next tradespeople work on site or when furnishing takes place and the occasional bump against the wall happens.
W
Wintersonne19 Mar 2020 11:34bauenmk2020 schrieb:
I’m curious about these yellowish-brown particles on the plaster. Has the plaster not been smoothed yet?
We want our lime-gypsum plaster to be relatively smooth and initially not wallpapered. How will you treat your plaster? I think those are sand particles?! These (yellow) particles strangely only appear on this one wall. They will be brushed off before painting, since they are quite coarse and clumped in this spot compared to the rest. The plaster is floated, with grain size up to 1 millimeter (0.04 inches). So you can already see white grains evenly distributed across the entire surface (but nowhere near as much as in the photo close-up). The plaster itself is fairly level (despite a Q2 finish) and will only be painted. If you want to avoid the grains, I think you would have to skim coat it again to achieve an absolutely smooth surface. But others probably know better.
W
Wintersonne19 Mar 2020 11:52@bauenmk2020 There used to be a thread with pictures of the interior plaster. Unfortunately, I can no longer find it using the search.
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