Yea these would definitely need a hydrophobic coating for any real-world use - PVA starts degrading above 70% humidity, so you’d probably want to seal it with something like acrylic conformal coating or even just a thin layer of epoxy if your going to use it outside a controlled environment.
Comment on DissolvPCB enables fully recyclable 3D-printed circuit boards with liquid metal conductors
InvisibleShoe@lemmy.world 2 weeks ago
I’m curious about the durability of these PCBs. They would be good for prototyping but how well would they handle high humidity environments?
MysteriousSophon21@lemmy.world 1 week ago
Ajen@sh.itjust.works 2 weeks ago
You might be able to coat them, but for long term applications I think you’d be better off etching FR4. This sounds like a huge breakthrough for low cost rapid prototyping, though.