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PETG no longer sticking to powder coated sheet  

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gglockner
(@gglockner)
Eminent Member
PETG no longer sticking to powder coated sheet

I am having a problem where Atomic Filament PETG is no longer sticking to the powder coated sheet. It will stick great if I apply adhesive like Layeneer, but it will not stick anymore on the sheet directly. I've tried washing it with 91% IPA and with Costco dish detergent and a plastic brush, but no more. Any suggestions besides trying to coat it every single time with adhesive?

Posted : 16/04/2021 4:23 pm
gglockner
(@gglockner)
Eminent Member
Topic starter answered:
RE: PETG no longer sticking to powder coated sheet
Posted by: @gglockner

I've tried washing it with 91% IPA and with Costco dish detergent and a plastic brush, but no more.

Sorry, I mean that I have adhesion problems even after washing it with IPA or with dish detergent: filament sticks to the nozzle instead of the bed. And yes, I've calibrated the first layer ad nauseam.

Posted : 16/04/2021 5:34 pm
Dan Rogers
(@dan-rogers)
Noble Member
RE: PETG no longer sticking to powder coated sheet

If it won't stick - lower your Z until it starts to bead, then watch and carefully lower some more.

 

Posted : 16/04/2021 8:20 pm
gglockner
(@gglockner)
Eminent Member
Topic starter answered:
RE: PETG no longer sticking to powder coated sheet

Update: Cleaned the bed with a LOT of dish soap. Then Windex. Then water. Then 91% IPA. Then did a recalibration. All better now.

Posted : 17/04/2021 12:28 am
cwbullet
(@cwbullet)
Member
RE: PETG no longer sticking to powder coated sheet

@gglockner

good news.  

--------------------
Chuck H
3D Printer Review Blog

Posted : 17/04/2021 2:06 am
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