PLA vs PETG vs ABS vs ASA vs TPU: Ultimate Filament Comparison 2025
Real strength tests, temperature results, print settings, and exactly when to use each filament in 2025 – updated with the newest CF and recycled blends.
| Filament |
Strength |
Flex |
Heat Resistance |
Ease |
Price/kg |
Best For |
| PLA | ★★★☆☆ | Rigid | 55–60°C | ★★★★★ | $19–25 | Prototypes, cosplay, toys |
| PETG | ★★★★☆ | Slight flex | 75–85°C | ★★★★☆ | $22–32 | Functional parts (king) |
| ABS / ASA | ★★★★☆ | Rigid | 95–105°C | ★★★☆☆ | $23–38 | Outdoor & car parts |
| TPU | ★★☆☆☆ | ★★★★★ | 70–90°C | ★★★☆☆ | $35–65 | Gaskets, phone cases |
| Nylon / CF-Blends | ★★★★★ | Slight flex | 100–150°C | ★★☆☆☆ | $45–120 | Tools, drones, end-use |
1. PLA – Still the Beginner Champion
Cheapest, easiest, and now available in matte, silk, wood, and glow versions that look incredible.
2025 reality: PLA+ and recycled PLA are now almost as strong as cheap PETG and far less stringy.
- No enclosure needed
- Best detail & surface finish
- Biodegradable options
Use for: Everything that stays indoors
2. PETG – The Real 2025 Winner (90% of my prints)
Stronger layer bonding than ABS, food-safe, UV-resistant versions, almost zero warping.
Prusament, Polymaker, and eSun PETG are now so good that most makers have completely dropped ABS.
If you only buy one filament forever → make it PETG
3. ABS & ASA – Only for Heat & Sun
ASA = UV-resistant ABS. Both handle 100 °C+ and can be acetone-smoothed.
Only buy these if your print will sit in a hot car or direct sunlight – otherwise PETG wins.
Outdoor projects only
4. TPU – Rubber That Prints
95A is the sweet spot – flexible but still printable on direct-drive machines.
Slow speeds (20–35 mm/s) but worth it for phone cases, seals, and vibration dampers.
Every maker needs at least one roll
5. Nylon & Carbon-Fiber Blends – End-Use Parts
PA6-CF, PA12-CF, and PETG-CF are now under $60/kg and insanely stiff.
Use when strength-to-weight actually matters (tools, jigs, drone frames).
The future of functional printing
2025 buying advice in one sentence:
Start with PLA → graduate to PETG forever → keep one roll each of ASA and TPU → add carbon fiber when you’re serious.
