PRUSA likes the bed to be cleaned with isopropyl alcohol. What else should I use?

  • I have the original Prusa i3m3 printer. Prusa recommends cleaning the bed before each print with isopropanol (isopropyl alcohol), with only occasional cleaning with acetone. The textured bed prohibits using acetone.

    Given the SARS-COV-2 situation and COVID-19, isopropanol is impossible to find, and will not be in stock on shelves in the US for months.

    What would you suggest as an alternative that might still be found on store shelves?

    Why not order it on Amazon? Looks like they can get it for you and you don't have to go out to get it.

    Do they have it now? Last I looked they were out. I'll look again. Wow, $29/liter is pretty stiff.

    When I looked yesterday, it was 1/2 that amount ... that said, *beggars cannot be choosers*. Besides, anything which acts as IPA is going to cost like IPA, considering the current world circumstance.

    Everclear? Or maybe even just vodka? :-)

  • Stuggi

    Stuggi Correct answer

    2 years ago

    Ethanol (Ethyl Alcohol) should work just fine as long as it's around 80% or more. It's very similar to isopropanol as a cleaning solvent. What you're basically doing is removing any stray grease from the bed with a solvent that evaporates quickly.

    Methanol would also probably work. It's very poisonous though, and shouldn't come into contact with your skin, so it requires a bit more careful handling. Methanol also has the benefit that it can't be used for hand sanitizer (since it's absorbed through the skin), so supplies shouldn't run out.

    Look for alternative sources, for example, methanol is often sold as de-icing agent for pneumatic brakes on trucks. Just make sure it's pure alcohol without anything funky added.

    Beware of methanol, it can turn you blind. It is easily absorbed by the skin.

    Good point, just don't get it on your hands, don't drink it (10 ml will cause blindness, 30 ml will probably kill you), and don't use so much that you're huffing vapors and you'll be fine.

    Don't use methaol, it's an unnecessary risk.

    I'll stay away from methanol. I wonder if the ATF would understand that my still was only so that I could clean my printer bed.

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Content dated before 7/24/2021 11:53 AM