
Flexible Series · TPU 72D
FilamentBay™ TPU 72D
Hard TPU: abrasion resistance with toughness
2.85 mm and 3.00 mm on request for wholesale orders.
72D is hard enough for the AMS feed path; keep the spool dry for reliable feeding.
2–5 business days
unopened spools
Shop Pay · PayPal
Slicer profiles
Features
Hard TPU: abrasion resistance with toughness
High hardness and outstanding wear resistance combined with excellent toughness and resilience. Built for durable functional and protective parts that take a beating.
Best for
Properties


Technical specifications
Everything you need before you hit print
Dry before printing if the bag has been open more than a few days: 55 °C · 4 h. See the drying guide.
Material properties
| Tensile strength (MPa) | 30 ± 3 |
|---|---|
| Elongation at break (%) | > 700 |
| Shore hardness | 72D |
| Density (g/cm³) | 1.2 |
|---|---|
| Melt flow index (g/10 min) | 28 ± 3 |
| Diameter tolerance | ± 0.02 mm |
|---|---|
| Net weight | 1 kg (0.25–5 kg available) |
| Spool outer diameter | 200 mm |
| Spool width | 65 mm |
| Spool hub | 54 mm |
| Empty spool weight | 160 g |
Tested by the Ultraline 3D lab on injection-moulded specimens: tensile ISO 527, Charpy ISO 179, HDT ISO 75. Values are typical, not guaranteed minimums.
Buy more, pay less per spool
Any 4+ spools of any FilamentBay material take 12% off automatically. From 50 spools a month, the Print Farm program prices per kilogram.
Print Farm pricing| Quantity | Price per spool |
|---|---|
| 1–3 | $29.99 |
| 4+ | $26.39 |
| 50+ / month | Per-kg ladder |
Frequently asked questions
Is 72D still flexible?
Does 72D work in an AMS?
Do I need to dry it before printing?
Downloads
Related guides
All guides
TPU hardness explained: 85A vs 90A vs 95A vs 98A vs 72D
What Shore hardness means for 3D printing, how each TPU grade feels, which extruder it needs and which parts each grade is for.
6 min read
Which spools fit the Bambu Lab AMS: dimensions, materials, TPU
Bambu Lab's published AMS spool limits, how the FilamentBay spool measures against them and which materials the AMS will not feed.
4 min read