Over the years poly(lactic acid) (PLA) – also known as polylactide – has become a popular thermoplastic for a variety of reasons. One of these reasons is that it’s easily produced…
Anyway, I haven’t printed PLA for some time (years really) and recently got a few spools for free. Newest one was 3 years old, oldest 9. Out of 6 spools only one was unusable (unopened, bambulab, i believe, it turned into oily paste), two opened spools were really dusty and first layer on the spool got brittle, underneath they were fine. Oldest was verbatim and it was perfectly fine.
Interesting article, lots of information.
Anyway, I haven’t printed PLA for some time (years really) and recently got a few spools for free. Newest one was 3 years old, oldest 9. Out of 6 spools only one was unusable (unopened, bambulab, i believe, it turned into oily paste), two opened spools were really dusty and first layer on the spool got brittle, underneath they were fine. Oldest was verbatim and it was perfectly fine.