Unlocking 3D Success: Filament Moisture & Water-Proofing Tips!

Hey tech enthusiasts! Carolina here, with a fresh scoop on our beloved 3D printer filaments. As someone who lives and breathes tech, I can’t help but spill the beans on something I’ve noticed. These filaments? They’re a little moody, just like me before my morning coffee! They tend to soak up moisture like a sponge, especially from their immediate surroundings. But hold on, not all of them are culprits. Let’s dive into which ones have this trait, and how you can keep them dry and happy!


The top contenders in the moisture-loving category? PLA, Nylon, and PVA. These babies are hygroscopic, meaning they have a knack for pulling moisture right out of the air. Depending on where you live, this can be a quick ticket to unusable filament city. But, fear not! Your tech guru, Carolina, is here with preventive tips and a crash course on which filaments are thirsty for water.

Spotlight: The Water Lovers

PLA: This one’s a biggie in 3D printing. It’s like the popular kid in school – everyone loves it, but it does have its quirks. Its organic makeup makes it prone to water absorption. Handle with care!

Nylon: Right behind PLA in the moisture game. It’s robust, it loves the heat, and it can take a hit. But, water? That’s its Achilles heel.

ABS: Yep, another one in the hygroscopic group. If you adore clarity in your 3D prints as much as I do, keep this one dry!

Moody PLA: What’s the Deal?

Okay, here’s the tea on PLA. It does get thirsty and sips on water. The aftermath? Bubbles that might just crash your printing party! Being quite the sensitive type, PLA snatches water from the air rather quickly, especially if it’s humid. Side note: In drier climates, I’ve let my PLA chill on my printer, and it’s been all good.

PLA Drama:
When water and PLA have a rendezvous, things can get messy. The filament might:

– Get swollen and potentially clog your printer’s hot end.
– Make your print warp on the bed.
– Produce steam and uneven extrusion, leading to a less-than-perfect finish.
– Result in fragile prints.

Worried about moisture in your filament? Keep an eye out for:
– Rough textures or stringing.
– Uneven extrusion lines.
– Sounds of cracking when heated.

Golden Rule: Keep ‘Em Dry!

Always remember: Dry filament = Happy prints. Not just for PLA, but all moisture-absorbing ones. Moist filament can be a real party pooper, potentially causing clogs or even breakdowns during extrusion.

Storage Tips: Seal your filament in an airtight container, maybe with some desiccants to keep the atmosphere super dry. Some swear by vacuum-sealed bags like AirBaker Vacuum Storage Bags – they’re a game changer!

Drying Techniques: Become the Filament Whisperer!

Need to dry your filament? Here are the best ways:

Filament Dryers: These babies are designed to bring your filament back to life! One top pick? The SUNLU Upgraded Filament Dryer Box. Super efficient and quiet!

Ovens & Food Dehydrators: An easy-peasy solution, but be careful. Make sure your oven’s temperature is spot on. Thinking long-term? Food dehydrators are a stellar choice, especially for those who are all-in on 3D printing.