Filament Storage Guide: Keep Your Filament Dry
Moisture ruins filament and prints. Learn proper storage techniques, drying methods, and when filament needs replacing.
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How should I store 3D printer filament?
Store in airtight containers with silica gel desiccant. Vacuum-seal bags work excellently. Keep away from direct sunlight and moisture. Humid climates require active moisture control for PETG, nylon, and TPU.
How can I tell if my filament is wet?
Signs: popping/hissing sounds during printing, stringing, poor layer adhesion, brittle prints, inconsistent extrusion. PLA becomes brittle, PETG strings excessively when wet.
Can I dry wet filament?
Yes. Use a dedicated filament dryer ($30-60) or food dehydrator. PLA: 50C for 4-6 hours. PETG: 65C for 4-6 hours. Nylon: 70C for 12+ hours. Oven works but risks overheating.
Does PLA absorb moisture?
Yes, but slower than PETG or nylon. PLA can sit out for weeks in average humidity without major issues. For best results, store in sealed bags. Signs of wet PLA: brittleness and poor layer adhesion.
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