Sinterit Flexa Gray (TPU, SLS)
Sinterit · SLS powder · discontinued
Sinterit's TPU powder for Selective Laser Sintering.
Sinterit datasheet values, printed parts
Other TPU grades and fills
Compare the TPU products and conditions in the library; see the grade overview at TPU.
- Sinterit Flexa Gray
- EOS TPU 1301
- Formlabs TPU 90A
- Forward AM Ultrasint TPU01
- Sinterit Flexa Bright
- Lubrizol ESTANE 3D TPU M88A
- Lubrizol ESTANE 3D TPU M95A
- Shore D 60
- As Printed
- Shore A 70
- FR V-0
- ESD
- Aliphatic
- Ether
- Shore A 85
- Shore A 60 to Shore D 80
- Ester
- GF20
- Shore A 95
Compare all 19 grades and fillsHide
| Grade · open for datasheet | Best for | Yield MPa | Tensile MPa | Elong. % | Hardness |
|---|---|---|---|---|---|
Sinterit Flexa GrayThis page SLS powder | — | — | 4 | 136 | 70 Shore A |
SLS powder | — | — | 7 | 250 | 86 Shore A |
Formlabs TPU 90A Powder · SLS powder | A tough, skin-safe TPU elastomer for flexible parts requiring high elongation, tear resistance, and everyday durability. | — | 9 | 310 | 90 Shore A |
MJF powder | A rubber-like TPU combining elasticity, rebound, fatigue resistance, and shock absorption for durable flexible parts. | — | 9 | 280 | 88 Shore A |
SLS powder | — | — | 10 | 318 | 79 Shore A |
MJF powder | A soft, durable TPU for complex flexible production parts and lattice structures with straightforward cold unpacking. | — | 15 | 440 | 88 Shore A |
MJF powder | A durable polyether TPU with high elasticity, abrasion resistance, energy rebound, and skin-contact suitability. | — | 17 | 400 | 93 Shore A |
Rigid engineering TPU | Choose for stiff snap-fit housings, wheel cores, chain guides and cable strain relief that must still absorb impact at low temperature. | 25 | 55 | 320 | 60 Shore D |
FDM/FFF printed TPU filament (typ. 95A) | Use for printed flexible prototypes, gaskets and shoe midsoles; expect 60–80 % of injection-moulded strength and Z-direction weakness. | — | 28 | 380 | 45 Shore D |
Soft TPU | Pick for soft-touch overmoulds, flexible tubing, bellows and low-durometer seals. | — | 28 | 680 | 70 Shore A |
Halogen-free flame-retardant TPU | Specify for cable jackets, connectors and enclosures needing UL 94 V-0 at 1.5–3 mm; some loss of tear strength and elongation. | — | 28 | 400 | 40 Shore D |
ESD / antistatic conductive TPU | Use for antistatic hoses, conveyor parts and ESD-safe flexible components in electronics handling. | — | 30 | 350 | 42 Shore D |
Aliphatic (HDI/H12MDI) optically clear, non-yellowing TPU | Use for clear films, paint-protection film, safety-glass interlayers and light guides where non-yellowing UV stability is required. | — | 35 | 500 | 35 Shore D |
Polyether-based TPU | Choose for wet, humid or microbe-exposed service and for good low-temperature flexibility; slightly lower abrasion/oil performance than ester. | — | 38 | 600 | 34 Shore D |
Shore A 85Default Medium-soft general purpose TPU | Default all-round hardness for seals, cable jackets, wheels, grips and flexible parts. | — | 40 | 550 | 33 Shore D |
Shore A 60 | Use when the design tolerates any TPU hardness and the exact grade is chosen later by the moulder. | — | 40 | 500 | 40 Shore D |
Polyester-based TPU | Best abrasion, tear, oil and fuel resistance at lowest cost — avoid continuous hot/humid or immersed service (hydrolysis). | — | 45 | 520 | 38 Shore D |
20 % glass-fibre reinforced TPU | Use where a semi-rigid, dimensionally stable structural part with TPU toughness is needed (housings, wheel hubs, sports hardware). | — | 45 | 25 | 70 Shore D |
Hard elastomeric TPU | Pick for load-bearing rollers, couplings, ski boots, hose and abrasion-critical parts needing stiffness with flexibility. | — | 50 | 480 | 45 Shore D |
What is Sinterit Flexa Gray?
Sinterit Flexa Gray is Sinterit's TPU powder for Selective Laser Sintering on Sinterit Lisa X / NILS 480. Sinterit Flexa Gray has a tensile strength of 3.7 MPa (0.537 ksi), weaker than 82% of polymer grades. Elongation at break is 136%.
About this powder
- Manufacturer
- Sinterit
- Product
- Flexa Gray
- Base polymer
- TPU
- Process
- Selective Laser Sintering (SLS)
- Printers
- Sinterit Lisa X / NILS 480
- As-printed colour
- Gray
- Build envelope
- 200 × 200 × 330 mm. Usable part size depends on orientation, spacing and process allowances.
- Build atmosphere
- No mandatory inert atmosphere recorded; follow the selected printer/material profile.
- Powder refresh
- 0 % fresh powder in the recorded recipe. Follow the manufacturer’s build and powder-management conditions.
- Manufacturer data source
- Sinterit source reference (2023-11)
- FabDigit material reference
- Download reference PDF — FabDigit layout with Sinterit data and source attribution.
- Ordering
- Discontinued by Sinterit; kept for reference and existing designs.
Sinterit Flexa Gray properties
Typical values for Sinterit Flexa Gray (2023-11); review each property’s test condition. Only this product’s reported properties are shown; unreported properties are omitted. Bars are the position among polymer grades.
Mechanical3
Sinterit Flexa Gray has a tensile strength of 3.7 MPa (0.537 ksi), weaker than 82% of polymer grades. Elongation at break is 136%.
per PN-EN ISO 37:2007
per PN-EN ISO 37:2007
per PN-EN ISO 868:2005; 70 or 90 depending on print settings and design
Use published values for design screening. Confirm the grade, build direction, conditioning and available lot documentation when quoting.
Sources
Product values come from the selected manufacturer source and are normalised for comparison. Confirm the quoted process, build direction, conditioning and available lot documentation for the finished part.