TPU 95A
⬡ Chemical Resistant
220–240
°C
Print Temp
30–60
°C
Bed Temp
80
°C
Max Service
Overview
Standard flexible filament. Firm but compressible — similar to shoe sole rubber. Abrasion resistant, tear resistant, oil resistant. Print 220-240°C nozzle, 30-50°C bed. Direct drive strongly preferred.
Properties
Difficulty
intermediate
Flexibility
flexible
Layer Adhesion
excellent
Enclosure
no
Heated Bed
no
Dry Storage
required
Pros
- Extremely flexible and rubber-like
- High impact resistance
- Excellent abrasion resistance
- Good chemical resistance
- No enclosure needed
- Durable and long-lasting
- Wide hardness range available (82A-95A)
- Good for wearables and gaskets
Cons
- Difficult to print (requires direct drive)
- Slow print speeds
- Poor bridging and overhangs
- Stringing issues
- Hygroscopic (dry before use)
- Can jam in Bowden extruders
- Not biodegradable
- Moderate VOC emissions
Best For
- Phone cases
- shoe soles
- grips
- gaskets
- cable protectors
- RC tire inserts
- vibration dampeners
Avoid For
- Bowden printers (possible)
- structural parts
- fine detail
- fast printing
Storage
Very hygroscopic. Dry 6-8h @ 55°C. Wet TPU prints brittle and snaps rather than flexes.
Laser Compatibility
LASER INTERACTION
Safety: CAUTION to AVOID — TPU combustion products depend heavily on formulation.
Fumes: Thermoplastic polyurethane releases isocyanates and other urethane decomposition products when burned. Isocyanates are potent sensitizers — exposure can cause permanent asthma.
Warning: Isocyanates are one of the most hazardous industrial chemicals — small exposures can cause lifelong respiratory sensitization. Exercise extreme caution. If laser marking TPU is required, use maximum ventilation, NIOSH-approved organic vapor respirator, and keep power and exposure extremely low.
If attempting (not recommended): CO2 at 500mm/s @ 8% maximum. Avoid any visible smoke.
Brands
Bambu Lab TPU 95APolymaker PolyFlex TPU90NinjaflexeSUN TPUSainsmart TPUFiberlogy TPU