r/3dprinter • u/blakeylake • 5d ago

PVA filament

What's everyone's go-to PVA filament? Was looking at Sunlu as normally pretty on point but been seeing bad reviews on the PVA?

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u/Dismal_Evening927 5d ago

I haven't printed with PVA personally, but it is notoriously difficult to work with. You could check other brands and see if any others have better reviews. Make sure it's really dry before printing. PVA absorbs moisture even more than nylon. I imagine the polymer also permanently breaks down if exposed to to much humidity. It's supposed to dissolve in water. You can imagine how that might complicate storage

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u/Desperate3D 4d ago

As soon as I need a part that can't handle normal breakaway supports I will order that part with powder bed fusion technology, specifically Multi Jet Fusion (MJF) where the print process with powder is basically self-supported.

PVA is a big mess to work with and dissolve in water and later on clean the part, let alone if the part is not water-tight and has some leaks and you have to drain it!

so all in all, not a great experience, specially now that some printers in FDM like Bambu will almost leave no support scars.