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Storing PLA filament ?

Discussion in '3D Printing' started by Loagi, 11 Sep 2021.

  1. Loagi

    Associate

    Joined: 22 Mar 2020

    Posts: 58

    We're not a particularly humid or hot country here in the UK, but is there anything I should be doing to keep my reels of PLA in good condition ?

    I've seen various sealing bags with moisture absorbers but dunno if they are worth it here.
     
  2. ScoobyDoo

    Mobster

    Joined: 18 Oct 2002

    Posts: 2,651

    Location: Stoke-on-Trent

    You need to seal it somehow otherwise the moisture in the air will make the PLA brittle and break. I just use vaccum bags with the little moisture bags in there and
    the PLA keeps perfectly.
     
  3. Loagi

    Associate

    Joined: 22 Mar 2020

    Posts: 58

    Thanks I've ordered a kit with some vacuum bags, a pump and desiccant packs. Silly question - do you keep your unused desiccant bags in a vacuum sealed bag to keep them 'unused' ?
     
  4. andy_mk3

    Capodecina

    Joined: 5 Oct 2009

    Posts: 11,366

    Location: Lincolnshire

    We do have a reasonably humid climate here. A few weeks in to open will ruin a roll of PLA.
     
  5. ScoobyDoo

    Mobster

    Joined: 18 Oct 2002

    Posts: 2,651

    Location: Stoke-on-Trent

    I just keep them in a plastic bag but a vacuum one would be better
     
  6. Gav_r26

    Gangster

    Joined: 17 Nov 2015

    Posts: 200

    i use the 5l klipfresh boxes from Tesco. They fit a 1kg spool in nicely with some silica bags as well.

    Klipfresh Box
     
  7. LePhuronn

    Soldato

    Joined: 26 Sep 2010

    Posts: 6,374

    Location: Stoke-on-Trent

    How quickly do you get through your filament?

    My house is so damp it's verging on wet yet it took over a year for my active spool of PLA to go funny. I surprisingly burned through a 2nd spool in about 4 months and it was perfectly fine.
     
  8. Rroff

    Man of Honour

    Joined: 13 Oct 2006

    Posts: 77,847

    On the flip side - between moving house and other reasons I left a roll of PLA on one of my 3D printers sitting in a corner and didn't touch it for ~2 years - it still *seems* to be fine. Not that I'd recommend that.