Hey everyone
I was at the construction site again today. I noticed some strange dark spots on the concrete ceilings. At first, I thought it might be mold, so I tried to wipe the spots off. However, they won’t come off. Even scrubbing doesn’t help much.
Maybe someone has an idea what this could be. What’s odd is that the spots are mostly above the windows.
Hope you can help me with this
Best regards, Chris
I was at the construction site again today. I noticed some strange dark spots on the concrete ceilings. At first, I thought it might be mold, so I tried to wipe the spots off. However, they won’t come off. Even scrubbing doesn’t help much.
Maybe someone has an idea what this could be. What’s odd is that the spots are mostly above the windows.
Hope you can help me with this
Best regards, Chris
H
Hisearnest8 Jun 2022 16:57Great, thank you very much for the quick responses. That puts my mind at ease. My carpenter suspected residues from a release agent, but those should be just as harmless, right?
Out of curiosity, why are there release agent residues on some parts but not on others?
Out of curiosity, why are there release agent residues on some parts but not on others?