MG Chemicals 843WB Super Shield Water Based Silver Coated Copper Conductive Coating, 150 mL Plastic Bottle

Adheres well to PLA/ABS(+,+.) Flexible enough that it won't bend with minor lateral stress to ~0.4-0.8mm walls. Coating a few mils on surface (and ensuring it fills layer lines) makes for a very good EMI/RF shield for PCB casings, the reason I got the product.Cures/dries very fast, and being water-based means you can wash it off from tub (and thus don't waste an acid brush & plastic container, unlike with epoxy-based/solvent-based EMI/RF shielding composites.)Overall, very pleased- reduced the EMI/RF-induced noise on my sensitive mixed-signal PCBs massively- much more than MG's carbon-based coatings.Just be aware that a little goes a long way with this- and it's best to keep it refrigerated once you've opened it (it dries quite fast, and the seal on the bottle isn't special- it's just a regular twist cap.) You don't want to put it in the freezer as you can with some solvent-based applications- being water-based, it will gel up beneath 0C.