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Dissolving glue between PEI foil and steel  

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kolin
(@kolin)
New Member
Dissolving glue between PEI foil and steel

Hi.

I have destroyed one side of smooth PEI plate so I peeled it off. Used glue stinks real nasty and leaves a lot of residue on steel. I have tried following solvents to remove it without luck:

  • Perchlorethylen
  • Ethanol
  • Toluen
  • Benzin
  • Chloroform
  • Acetone
  • Methylethylketone
  • Dichlormethane
  • S6001 paint thiner
  • S6005 paint thiner
  • S6300 paint thiner

Methylethylketone had slight effect. Paint thinner S6001 had better effect. But still nowhere near enough to wipe the remains off.

I have not yet tried to submerse whole sheet in solvent and let it work overnight. The other side can still be usable. If glue won't come off I will peal off the other side and then put it inside the solvent.

Does anyone know what glue is there? I have never seen stuff like this...

Posted : 20/04/2020 8:04 pm
Mike Daneman
(@mike-daneman)
Estimable Member
RE: Dissolving glue between PEI foil and steel

I believe you need limonene to dissolve that glue. Here are instructions from Prusa:

https://help.prusa3d.com/en/guide/replacing-the-pei-sheet-on-the-mk3s-mk3-mk2-5s-mk2-5_23920

Posted : 21/04/2020 4:08 pm
djspathis
(@djspathis)
Trusted Member
RE: Dissolving glue between PEI foil and steel

IIRC the glue doesn’t dissolve so much as it just gets soft enough to scrape off.

DJ...
Posted : 22/04/2020 2:40 pm
Olef
 Olef
(@olef)
Honorable Member
RE: Dissolving glue between PEI foil and steel

Limonene works. Not a job for the faint hearted or those affected by very strong smells (orange actually)

Posted : 24/04/2020 10:42 pm
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