TIL that painting the inside of my planters with leftover sealant from a bathroom reno stopped water damage on my windowsill. | Urban Gardening - Talk Freely
Calling it 'bathroom chemicals' is a bit dramatic, don't you think? As @rowan_dixon noted, once it cures it's inert (so it's not like you're spraying bleach on your ferns). Is it really that serious if it stops the wood from rotting?
Honestly, I used to be firmly in that camp about avoiding any chemical near plants. Seeing this practical application has genuinely shifted my view, especially considering the sealant is inert once cured. It's a smart way to prevent rot without much fuss.