PEI Clean the print bed with hydrochloric acid

Sovol SV06 Fully Open Source 3D Printer
1

Does anyone have experience with cleaning the print bed of Sovol sv06 Plus? PETG sticks there
I have already tried:

  • acetone
  • Scraping with plastic spatula
    …
    All of this didn’t help and I asked myself whether hydrochloric acid would work for cleaning. I thought that the PEI print bed should theoretically be able to withstand 35% hydrochloric acid but the PETG remains are not. Can anyone give me their opinion on this or suggest better ideas before I try this
2

I just use soapy water and, when the bed is dry, isopropyl alcohol.

3

Wipe some IPA on the spot you want to clean.
Put a small towel over the the spot & pour more IPA soaking the towel.
Let that soak for an hour. Remove the towel & try to scrape off. Repeat if necessary.

I’ve been told…never tried it…that putting the plate in the freezer for a few hours works.

4

Print 2-3 layer square over the stuck on bits, apply some bed adhesive there but clean off the stuck on bits so it sticks well.

Let it cool, pop it off.

I have laid down a 200x200mm 3 layer PET-CF print to get back a new bedplate before I understood how much PET truly loves PEI, and the proper use of bed adhesive, which in PET/PETGs case is actually used as release agent. The sheet of PET-CF has proven handy for making things anyway.

worked perfectly.

5

Methyl acetate will disolve PETG.

Non acetone nail polish remover is 90+ % Methyl acetate and 1/10 the price of pure.

It will leave traces of oils behind (to condition nails and skin) so once you get the PETG off you’ll still need to scrub with dishsoap.

Note: IPA isn’t a very effective solvent other than organic oils. It dries fast with no (added) residue but it isn’t very aggressive at dissolving heavy deposits.

Lighter fluid and acetone are both zero residue too. Neither is an effective solvent for PETG