3DPrinting

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3DPrinting is a place where makers of all skill levels and walks of life can learn about and discuss 3D printing and development of 3D printed parts and devices.

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How do you clean a smooth or textured PEI sheet? (self.3dprinting)

submitted 1 year ago by Carighan to c/3dprinting

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Hey, apologies if this is a duplicate post - my search foo is pretty bad nowadays I think :< - but I wanted to ask how others clean PEI sheets?

I see a lot of rather conflicting information, in particular whether to use cleaning alcohol or not on it. I intuitively understand Acetone is a no-no, but what about just alcohol? Does that also damage/roughen the surface of the smooth side?

Should I use window cleaner on the smooth side?

Just dishwashing soap to be on the very safe side?

Or is there some specialized PEI cleaner?

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[–] Spott 3 points 1 year ago

Acetone is fine.

This is actually one of my pet peeves. Acetone is far from the “universal plastic solvent” that it has as a reputation…

Ultem, aka pei actually does great with acetone: https://www.astisensor.com/ultem.pdf.

I use acetone pretty regularly on my sheets and I haven’t noticed any bad effects. Usually it is best to use soap and water, acetone and isopropyl alcohol. If things won’t stick, do all three (in that order).