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Acid? On wooden shelves in shed - how to fix? (lemmy.world)

submitted 3 months ago* (last edited 3 months ago) by tobylemming to c/diy

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Hi, I am wondering if anyone could please help identify the white powder substance that is appearing on the shelves on my shed?

I think it may be some type of acid? It appears to be eating away at the metal of my shelves. I have previously brushed the shelves down to clear this before but it has returned, so I suspect I may need to use some sort of cleaner?

There was a leak in the roof for a few months and some tools became rusty as a result. The leak has been sorted but I wonder if it could be related to the powder substance.

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[–] tobylemming 1 points 3 months ago

Thank you both, great information. I plan to clean the shelves down over winter, I will try some baking soda, then give them a coat of whatever I have lying around to seal the wood.