First time home owner here. I stuck these vent deflectors a month ago on one of our vents and I removed it today for some other reason. I noticed these stains that looked like water stains but I think it’s actually something that is growing - maybe unfortunately mold or something. I need help in understanding this situation and possibilities of this happening. Please share your experience or knowledge related to this issue if you can.

Thank you!

EDIT: Mystery solved - this seems to be the result of some chemical spray during cleaning. Not concerning.

  • @Ziglin
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    21 year ago

    I believe chloroform works well on PLA…

    • @[email protected]
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      1 year ago

      I didn’t know that. Chloroform always helped my girlfriends melt into my arms, but I never thought about its use on PLA. (Huge /s for people who think I was serious.)

      While I was googling around about chloroform smoothing, I also stumbled upon ethyl acetate as a smoother for PLA. It’s probably better for your internet search history to go that route instead. I have a ton of weird shit for my engineering fascinations, but a bottle of chloroform would probably be at the top of that list.