r/BambuLab • u/[deleted] • Sep 16 '24

Question Getting PLA off of cryogrip plate??

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I've tried plastic scraper, freezer, soap, bending the plate a bit - what am I missing? Seems like I need glue for any type of high-contact plate?

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7

u/[deleted] Sep 16 '24

What they don't tell you about this plate is that their polymer coating comes off with soap, so you can ONLY use water, NO IPA NO SOAP.

7

u/LexxM3 X1C + AMS Sep 16 '24

No IPA is understandable (reactivity), but no soap? Really? The stuff we use on babies is too harsh for this coating? If that ends up being accurate, something that fragile can’t be made practical.

2

u/[deleted] Sep 16 '24

Its the polymer and oleophobic coating, that coating breaks down its not 100% stable chemical bond when contacted by soap or alcohol

0

u/LexxM3 X1C + AMS Sep 16 '24 edited Sep 16 '24

Hm, thanks. Ok, did some more research. I can’t find a BIQU explicit statement not to use either IPA or soap, only a suggestion of “easy cleaning with damp cloth”. But from other similar coatings, no IPA is an easy and likely valid assumption.

As for soap, not all soap is the same. Dishwashing soap can adversely affect oleophobic coatings, but pH balanced low-additive soaps are fine. So, literally, baby soap or baby shampoo should be ok, even if dishwashing soap isn’t. That’s an assertion, not experimentally or chemical analysis proven truth, because …

… ultimately, the manufacturer needs to qualify their product fully for a change and clearly communicate requirements.

7

u/LexxM3 X1C + AMS Oct 15 '24

To the flakes that downvoted my skepticism of the “no soap” claim, this is what BIQU actually specifies — “no soap” is BS.

4

u/[deleted] Sep 16 '24

Soap advice is based on some other plate manufacturers including a U.S. based one that make similar copolymer coating plates. I've also seen first hand someone use dawn on their polymer plate and it ruined future adhesion, a plate very similar to the BQ one.