PLA, PETG, ABS, ASA, TPU, Nylon — every material compared, every use case covered. The only guide you need to pick the right filament.
Just starting out
→ PLA (Bambu Lab or eSUN PLA+)
Functional parts
→ PETG (Prusament or eSUN)
Outdoor / UV
→ ASA (Prusament or Polymaker)
Flexible parts
→ TPU 95A (Polymaker PolyFlex)
| Material | Difficulty | Price | Max Temp | Best For |
|---|---|---|---|---|
| PLA | ⭐ Easiest | $18–25/kg | 55°C | Beginners, prototypes, display models |
| PETG | ⭐⭐ Easy–Medium | $22–30/kg | 75°C | Functional parts, brackets, snap-fits |
| ABS | ⭐⭐⭐ Hard | $20–28/kg | 90°C | Heat-resistant parts, enclosures (needs enclosure) |
| ASA | ⭐⭐⭐ Hard | $25–35/kg | 95°C | Outdoor parts, UV-exposed applications |
| TPU | ⭐⭐ Medium (DD only) | $22–35/kg | 80°C | Flexible parts, phone cases, gaskets |
| Nylon | ⭐⭐⭐⭐ Hard | $30–50/kg | 110°C | Gears, wear parts, engineering applications |
| Carbon Fiber (CF PLA) | ⭐⭐ Medium* | $28–45/kg | 60°C | Rigid, lightweight structural parts |
* CF filaments require hardened steel nozzle
🏆 Best Overall PLA: Bambu Lab PLA
Pre-validated in Bambu Studio but prints excellently on any printer. ±0.02mm tolerance, huge color range, consistent batch-to-batch quality. The new benchmark for consumer PLA.
💰 Best Budget PLA: eSUN PLA+
Stronger than standard PLA, slightly better heat resistance, prints at same settings. One of the most reliable budget picks for the past 5 years — and still going strong in 2026.
🌿 Best Eco PLA: Polymaker PolyTerra PLA
Cardboard spool (no plastic waste), plant-based pigments, beautiful matte finish that hides layer lines. Great for display models and makers who care about sustainability.
🔧 Best PETG: Prusament PETG
±0.02mm tolerance with per-spool QC data online. Prints cleanly with minimal stringing when tuned correctly. Works on all printers, not just Prusa.
🌞 Best for Outdoor: Prusament ASA / Polymaker ASA
UV-stable, weather-resistant, same printability as ABS but less warping. Prusament ASA has excellent QC; Polymaker PolyLite ASA is the budget alternative.
🤸 Best Flexible (TPU): Polymaker PolyFlex TPU95
Shore 95A, consistent diameter, low stringing, works on most direct drive printers. The most reliable TPU for beginners to flexible printing.
⚙️ Best Engineering: Polymaker PolyMide PA12-CF
Carbon Fiber Nylon: combines high stiffness, wear resistance, and 120°C heat resistance. Requires hardened nozzle and enclosure. The go-to for serious functional parts.
✅ When to use: Use PLA for: hobby prints, display models, prototypes, anything that won't be exposed to heat or outdoor conditions.
❌ Avoid when: Avoid for: parts in cars (glove box can hit 70°C+), outdoor use, anything that needs to flex without cracking.
Ready to upgrade from PLA? → PETG for stronger parts, ASA for outdoor.
✅ When to use: Use PETG for: brackets, clips, enclosures, mechanical housings, printed-in-place mechanisms, anything needing more strength than PLA.
❌ Avoid when: Avoid for: high-heat applications (>75°C), outdoor UV exposure, anywhere you need acetone smoothing.
Need more heat resistance? → ASA or ABS. Need more strength? → Nylon.
✅ When to use: ABS for: high-temp indoor parts, enclosures needing acetone smoothing, automotive applications. ASA for: everything ABS does + outdoor use.
❌ Avoid when: Both require enclosure or draft-free environment. ABS degrades outdoors — always choose ASA for exterior parts.
For maximum heat resistance → Nylon or Polycarbonate.
✅ When to use: Use TPU for: phone cases, cable organizers, RC car tires, shock absorbers, gaskets, grips. Shore 95A for most uses, 87A for softer feel.
❌ Avoid when: Avoid with Bowden extruders (buckles in PTFE tube). Not for load-bearing rigid structures.
Need rigid + tough? → Nylon. Need flex + heat? → There's no perfect option; TPU up to 80°C.
✅ When to use: Use Nylon for: gears, bearings, wear parts, snap-fits that cycle thousands of times, anything requiring high tensile strength and flexibility.
❌ Avoid when: Not beginner-friendly. Requires drying (always), enclosure (recommended), and patience. Moisture ruins prints within hours of exposure.
Need Nylon + stiffness? → PA-CF (Carbon Fiber Nylon).
| Material | Nozzle | Bed | Speed | Enclosure? |
|---|---|---|---|---|
| PLA | 195–220°C | 55–65°C | 50–200mm/s* | No |
| PLA+ | 205–225°C | 55–65°C | 50–100mm/s | No |
| PETG | 230–245°C | 75–85°C | 40–80mm/s | Optional |
| ABS | 235–255°C | 100–110°C | 40–60mm/s | Required |
| ASA | 240–260°C | 100–110°C | 40–60mm/s | Required |
| TPU 95A | 220–235°C | 40–50°C | 20–35mm/s | No |
| Nylon PA12 | 245–265°C | 80–90°C | 30–50mm/s | Recommended |
| CF PLA | 205–225°C | 55–65°C | 40–60mm/s | No |
* PLA at 200mm/s requires Input Shaper (Bambu Lab, Prusa MK4 with IS enabled)