EOS TPU 1301 (TPU, SLS)

EOS · SLS powder

EOS's TPU powder for Selective Laser Sintering.

SLSWhite

Request a quote in EOS TPU 1301 TPU overview

EOS datasheet values, printed parts

Other TPU grades and fills

Compare the TPU products and conditions in the library; see the grade overview at TPU.

Compare all 19 grades and fillsHide

Grade · open for datasheet	Best for	Yield MPa	Tensile MPa	Elong. %	Hardness
Sinterit Flexa Gray SLS powder	—	—	4	136	70 Shore A
EOS TPU 1301This page SLS powder	—	—	7	250	86 Shore A
Formlabs TPU 90A 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
Forward AM Ultrasint TPU01 MJF powder	A rubber-like TPU combining elasticity, rebound, fatigue resistance, and shock absorption for durable flexible parts.	—	9	280	88 Shore A
Sinterit Flexa Bright SLS powder	—	—	10	318	79 Shore A
Lubrizol ESTANE 3D TPU M88A MJF powder	A soft, durable TPU for complex flexible production parts and lattice structures with straightforward cold unpacking.	—	15	440	88 Shore A
Lubrizol ESTANE 3D TPU M95A MJF powder	A durable polyether TPU with high elasticity, abrasion resistance, energy rebound, and skin-contact suitability.	—	17	400	93 Shore A
Shore D 60 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
As Printed 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
Shore A 70 Soft TPU	Pick for soft-touch overmoulds, flexible tubing, bellows and low-durometer seals.	—	28	680	70 Shore A
FR V-0 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 ESD / antistatic conductive TPU	Use for antistatic hoses, conveyor parts and ESD-safe flexible components in electronics handling.	—	30	350	42 Shore D
Aliphatic 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
Ether 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 to Shore D 80 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
Ester 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
GF20 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
Shore A 95 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 EOS TPU 1301?

EOS TPU 1301 is EOS' TPU powder for Selective Laser Sintering on EOS FORMIGA P 110 / P 396 / P 500 / P 770. EOS TPU 1301 has a tensile strength of 7 MPa (1.02 ksi), weaker than 82% of polymer grades. Elongation at break is 250% and the elastic modulus is 0.06 GPa (0.0087 Msi). EOS TPU 1301 has a density of 1.11 g/cm³ (0.0401 lb/in³), lighter than 65% of polymer grades.

Advantages

Ductile — tolerates forming and impact — 250%, better than 79% of polymer grades

About this powder

Manufacturer: EOS
Product: TPU 1301
Base polymer: TPU
Process: Selective Laser Sintering (SLS)
Printers: EOS FORMIGA P 110 / P 396 / P 500 / P 770
As-printed colour: White; dyeing options depend on the base colour and grade
Build envelope: 340 × 340 × 600 mm. Usable part size depends on orientation, spacing and process allowances.
Build atmosphere: Inert atmosphere specified; confirm the gas and settings for the printer/material profile.
Powder refresh: 20 % fresh powder in the recorded recipe. Follow the manufacturer’s build and powder-management conditions.
Manufacturer data source: EOS source reference
FabDigit material reference: Download reference PDF — FabDigit layout with EOS data and source attribution.
Ordering: Specify this powder in your quote notes for an availability review.

Choosing TPU 1301

An SLS TPU for flexible, durable components that need rebound and toughness rather than rigid nylon behavior.

Consider it for: Automotive flexible components · Sports and protective parts · Grips, bumpers and compliant prototypes
Tradeoffs: The manufacturer publishes very different elongation by orientation; it is not an isotropic rubber replacement or a precision rigid material.
Design and validation: Use lattice or wall-thickness trials for the target feel, and orient a repeatedly bent section around the weakest published direction. Define the required hardness and compression behavior explicitly.
Finishing: White parts can be dyed after printing. Surface finishing may alter grip, appearance and friction, so evaluate it against the intended contact surface.
Before choosing: Do you need this TPU's 86A hardness range or a softer/harder elastomer? Will repeated flexing make orientation and fatigue testing decisive?

Selection notes based on EOS TPU 1301 material data sheet. Published test results depend on the stated printer, orientation and conditioning. Compare material families · Choose a finishing route.

EOS TPU 1301 properties

Typical values for EOS TPU 1301; 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.

Mechanical4

EOS TPU 1301 has a tensile strength of 7 MPa (1.02 ksi), weaker than 82% of polymer grades. Elongation at break is 250% and the elastic modulus is 0.06 GPa (0.0087 Msi).

Elastic (Young's) Modulus0.06 GPa0.01 Msi

per ISO 527-1/-2; X 0.06 / Y 0.06 / Z 0.06 GPa

Tensile Strength (Ultimate)7 MPa1 ksi

per ISO 527-1/-2; X 7 / Y 7 / Z 5

Elongation at Break250%

per ISO 527-1/-2; X 250 / Y 250 / Z 90

Hardness, Shore A86 Shore A

per ISO 868

Physical1

EOS TPU 1301 has a density of 1.11 g/cm³ (0.0401 lb/in³), lighter than 65% of polymer grades.

Density1.11 g/cm³0.04 lb/in³

per EOS Method

Use published values for design screening. Confirm the grade, build direction, conditioning and available lot documentation when quoting.

EOS TPU 1301 — frequently asked

What is EOS TPU 1301 used for?

An SLS TPU for flexible, durable components that need rebound and toughness rather than rigid nylon behavior. Consider it for automotive flexible components, sports and protective parts and grips, bumpers and compliant prototypes. The manufacturer publishes very different elongation by orientation; it is not an isotropic rubber replacement or a precision rigid material.

What should I validate before using EOS TPU 1301?

Use lattice or wall-thickness trials for the target feel, and orient a repeatedly bent section around the weakest published direction. Define the required hardness and compression behavior explicitly. Do you need this TPU's 86A hardness range or a softer/harder elastomer? Will repeated flexing make orientation and fatigue testing decisive?

How can EOS TPU 1301 be finished?

White parts can be dyed after printing. Surface finishing may alter grip, appearance and friction, so evaluate it against the intended contact surface.

Sources

EOS TPU 1301 material data sheet

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.