Storage of Filamet

[jchambe...@go.ccad.edu]

Hi How is everyone, just wanted to note that it is very important when Filamet is not in use to store it in a ziploc bag with the desiccant packs that come with it, otherwise after 5 days or so the product kind of goes stale and will become brittle

Best Regards

TVF

[Sam P]

We printed without a problem and then left ours out on the machine for a week.  It's pretty humid here.  The filament would then jam or snap and we couldn't finish a print.  We then had success by heating the filament (on the spool) to ~120F during printing (thankfully we didn't have to dry the spool out!).

[Sam P]

After continuing to leave the spool on the machine for a couple months, it's unrecoverable.  We got one more good print out of it by printing it at temp and baking it out after a month, but after a couple more weeks it becomes completely unusable.  We tried to bake the filament for hours at ~180F in a convection oven and no change.  Same thing when we try minimize bends from the spool to the extruder.  Very brittle.  Bizarre failures.  The filament sometimes snaps at the extruder head and sometimes at the filament spool, but will unspool just fine if you quickly pull it away by hand.  Odd!

Hopefully this weekend will try to remove moisture via vacuum.

Is the moisture thing just a content issue or is it reacting with the filament?

Also, is there a RH% we should shoot for for printing and storage?

[Jeremiah Chamberlain]

The Filamet is reacting to the atmosphere it has a limited shelf life, the binder itself will break down after a while but this is the nature of plastic in general it degrades over time, moisture speeds that process, will extend it's life to keep it sealed with desiccant when not in use but after 6 or 7 months your going to have alot of difficulty using it still, our newer stuff is much less senative and we are now shipping on larger reels which helps alot too, not sure how old your reel is but reasonably you want to use a reel in under 6 months for best printing results. What is the lot number on your reel by the way?

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