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Reini12348 Oct 2019 14:14I’m currently wondering whether I should even paint my red lime fine plaster.
The basement is solid with Poroton bricks, and a red lime base coat has already been applied. The ground floor has gypsum fiberboards with a vapor-permeable wall construction.
In both floors, a felt plaster will be applied, probably red lime 05. On the ground floor, it will be pre-treated with a quartz primer. Now the question is whether I should paint this plaster again (if so, probably with Keim Innotop). Some acquaintances advise against it because the texture of the 05 plaster would no longer be visible after painting. The main advantage would obviously be the saved work and reduced costs. As a disadvantage, I see possible flaking over time.
Additionally, all ceilings are covered with painter’s fleece wallpaper, which definitely needs to be painted. Would a painted wallpaper match in color with an unpainted wall?
Regarding the choice of quartz primer, I’m also torn. There is the original one from the same manufacturer as the plaster, but it is incredibly expensive. Then there is a much cheaper competitor product, but they did not publish the SD value on the technical data sheet. When I inquired, they confirmed a value of <0.14 m. Whether you choose to believe that or not is another matter…
The basement is solid with Poroton bricks, and a red lime base coat has already been applied. The ground floor has gypsum fiberboards with a vapor-permeable wall construction.
In both floors, a felt plaster will be applied, probably red lime 05. On the ground floor, it will be pre-treated with a quartz primer. Now the question is whether I should paint this plaster again (if so, probably with Keim Innotop). Some acquaintances advise against it because the texture of the 05 plaster would no longer be visible after painting. The main advantage would obviously be the saved work and reduced costs. As a disadvantage, I see possible flaking over time.
Additionally, all ceilings are covered with painter’s fleece wallpaper, which definitely needs to be painted. Would a painted wallpaper match in color with an unpainted wall?
Regarding the choice of quartz primer, I’m also torn. There is the original one from the same manufacturer as the plaster, but it is incredibly expensive. Then there is a much cheaper competitor product, but they did not publish the SD value on the technical data sheet. When I inquired, they confirmed a value of <0.14 m. Whether you choose to believe that or not is another matter…
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Mottenhausen8 Oct 2019 14:26The question of whether to paint or not should be postponed until the plaster is applied to the wall (and has dried). The final condition could influence the decision.
1. There might be cracks or imperfections that need to be filled or patched. Achieving an exact color match is almost impossible.
2. Depending on the substrate and thickness, the plaster may become mottled and, for example, media lines or electrical conduits might show through.
3. Necessary acrylic or expansion joints around windows, etc., also look much better when painted, as acrylic can otherwise yellow quickly.
Since the ceilings will need to be painted anyway, I would prepare for everything to be painted. If the result is convincing without painting, even better: money and time saved. The choice of a suitable paint can then be made at the appropriate time.
1. There might be cracks or imperfections that need to be filled or patched. Achieving an exact color match is almost impossible.
2. Depending on the substrate and thickness, the plaster may become mottled and, for example, media lines or electrical conduits might show through.
3. Necessary acrylic or expansion joints around windows, etc., also look much better when painted, as acrylic can otherwise yellow quickly.
Since the ceilings will need to be painted anyway, I would prepare for everything to be painted. If the result is convincing without painting, even better: money and time saved. The choice of a suitable paint can then be made at the appropriate time.
You can treat walls and ceilings differently. However, the felt plaster will probably not be completely uniform, which can also look good. I don’t really see the risk of spots or streaks as described, as long as the surface preparation is done well.
The Keim paint can be diluted with fixative to reduce its opacity. But with the regular consistency, the plaster’s appearance will definitely change. It’s better to apply it with a brush than a roller, as this minimizes changes.
We don’t always use brand-name products either. For us, there’s no noticeable difference. We usually buy the building suppliers’ own brands. I can’t speak for any products from DIY stores.
The Keim paint can be diluted with fixative to reduce its opacity. But with the regular consistency, the plaster’s appearance will definitely change. It’s better to apply it with a brush than a roller, as this minimizes changes.
We don’t always use brand-name products either. For us, there’s no noticeable difference. We usually buy the building suppliers’ own brands. I can’t speak for any products from DIY stores.
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