fuse3d · SLS · Fuse 1+ 30W · material datasheet
TPU 90A (TPU 90A Powder)
Elastomer for flexible parts, cushioning and seal selection.
MATERIALSSLS · Fuse 1+ 30WTPU 90A Powder
TPU 90A
Elastomer for flexible parts, cushioning and seal selection.
TPU 90A for flexible parts: hardness of 90 Shore A, elongation at break of 310% in X/Y and 110% in Z. These are specimen results, not a range of elastic deformation. For a seal, tell us the medium, pressure, temperature and duration of use.
Manufacturer datasheet (PDF)Powder handling and quotation
- refresh rate
- 20%
- The share of fresh powder added to each build. It determines the variable material cost more directly than the listed price of a powder bag.
- build chamber atmosphere
- Air
- Where the manufacturer permits printing a nitrogen-grade powder in air, we use a higher refresh rate and include it in the quotation.
- individual quotation
- reviewed quote
- A technologist will confirm the price, powder availability and lead time after reviewing the model and quantity.
We print mainly in PA12. Switching to PA11 or TPU 90A requires thorough cleaning of the chamber to remove the previous powder.
When to use this material and when to avoid it
＋ Choose it when
- Elongation at break of 310% in X/Y (ASTM D412-16 Method A), useful when selecting flexible parts.
- Tear strength 66 kN/m in the layer plane.
- Volume loss of 122 mm³ in the ISO 4649 abrasion test (40 rpm, 10 N load).
- SLS prints elastomers without supports. Channels and cavities need access for powder removal; a fully enclosed space retains powder.
− Avoid it when
- Results differ by axis: tear resistance of 66 versus 39 kN/m and elongation at break of 310% versus 110% in X/Y and Z.
- Weak chemical resistance: acetone +28.6%, xylene +20.8%, and concentrated HCl causes mass loss, i.e., material degradation.
- Compression set of 59.9% at 70 °C (ASTM D395-18 Method B). A seal under sustained compression is selected for its actual working conditions.
- There is no automatic calculator rate yet; we prepare an individual quotation within 24 working hours.
Keep this datasheet for your records: the print version contains the material values and test standards without navigation or calls to action.
Mechanical properties
Values with test standards
Formlabs TPU 90A Powder TDS (2301750)
Scroll the table sideways to see the remaining columns.
| Property | Value | Test standard |
|---|---|---|
| Shore hardness | 90A | ASTM D2240-15 |
| Tensile Strength | 8.7 · 7.2 MPaX/Y · Z | ASTM D412-16 Method A |
| Elongation at Break | 310% · 110%X/Y · Z | ASTM D412-16 Method A |
| Stress at 100% elongation | 7.2 · 7.0 MPaX/Y · Z | ASTM D412-16 Method A |
| Tear resistance | 66 · 39 kN/mX/Y · Z | ASTM D624-00 |
| Volume loss in abrasion testing | 122 mm³ | ISO 4649 (40 rpm, 10 N) |
X/Y is the powder spreading plane, Z is the build direction. The difference between axes is not a measurement error but a process characteristic. How we choose build orientation.
Thermal and physical properties
Temperature and moisture
Scroll the table sideways to see the remaining columns.
| Property | Value | Test standard |
|---|---|---|
| Compression set at 23 °C | 20.5% | ASTM D395-18 Method B |
| Compression set at 70 °C | 59.9% | ASTM D395-18 Method B |
| Vicat softening temperature | 94.3 °C | ASTM D1525 |
| Sintered density | 1.14 g/cm³ | manufacturer method |
| Water absorption (part) | 0.89% | ASTM D570 |
PA12 and PA11: samples conditioned for 7 days at 50% relative humidity and 23 °C, per manufacturer datasheets. The TPU 90A datasheet does not state the same conditioning protocol. Results depend on geometry, orientation, temperature and humidity; they describe test specimens, not guaranteed part properties.
Chemical resistance
Mass change after 24 h
1 cm³ cube
Scroll the table sideways to see the remaining columns.
| Medium | Mass change after 24 h | Assessment |
|---|---|---|
| Water | 0.9% | test result |
| Isopropanol | 4.8% | test result |
| Hydraulic oil | 2.8% | test result |
| Skydrol 5 | 6.5% | test result |
| TPM | 9.9% | test result |
| Butyl acetate | 16.5% | do not use |
| Xylene | 20.8% | do not use |
| Acetone | 28.6% | do not use |
| Concentrated Hydrochloric Acid | −5.2% (mass loss) | do not use |
The immersion test ran for 24 h on a 1 cm³ cube. Mass change may indicate absorption or degradation, but does not determine part service life. A low value does not confirm suitability for continuous contact. Tell us the medium, concentration, temperature and contact duration for an application review.
Compare another powder
Sources: Formlabs TPU 90A Powder TDS (2301750). The manufacturer PDF is linked below. We do not accept medical devices or safety-critical parts. Specimen biocompatibility data describes the material in manufacturer tests, not the compliance of a finished product.
Manufacturer datasheet (PDF)Quote a model in TPU 90A
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