What is it? Seems to grow out of some wooden areas in the room. I've tried peroxide and bleach. Would a steamer help? Sorry in advance for the bad picture quality.
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I had given it a thought that it may be crystallized salt from the marine air, but it doesn't dissolve. The clusters are almost hydrophobic in water at first but end up as a suspension when stirred around, i.e. not soluble.
It would more likely be from the material itself and not from the air.
Ya. That was my other thought. Dunno how to test that theory though.
Lemme guess: Singapore?
I live in a similar setting (tho probably not as humid), so I know it's a thing.
https://en.m.wikipedia.org/wiki/Efflorescence
Not sure if it describe the one we're seeing, but it's something similar, at least.