MJF Powder · TPU · Elastomer

MJF TPU 01 Flexible Elastomer 3D Printing

Name: MJF TPU 01 Flexible Elastomer 3D Printing
Brand: RYSE 3D

The flexible MJF elastomer — Shore A 88–90 TPU that stretches to 291% elongation and springs back with 63% rebound, backed by 61 kN/m tear resistance. RYSE 3D prints TPU 01 on our Multi Jet Fusion platform in Shipston-on-Stour for flexible production parts: lattices, cushioning, grips and seals tough enough for end use, not just prototypes.

Quote in TPU 01 → All MJF materials MJF TPU 01 datasheet (PDF) ↓

Also known as MJF TPU · thermoplastic polyurethane · flexible nylon powder · elastomeric TPU · rubber-like powder

Overview

Rubber-like parts at production volume

Flexible parts usually mean tooling — and tooling means volume commitments before you've sold a thing. TPU 01 on MJF prints rubber-like parts straight from CAD: bellows, seals, grips and lattice structures no mould could release, with 291% elongation, 61 kN/m tear resistance and 63% rebound so they stretch, compress and spring back in service rather than taking a permanent set.

The lattice is the signature application, and it is the one that genuinely cannot be moulded. Because the powder supports the part, internal geometry prints freely — variable-density cushioning, energy-absorbing structures and conformal padding come off the machine in one piece with no core to pull and no release constraint to design around. That is a capability, not a compromise.

At Shore A 88–90 it is a firm rubber rather than a soft one: grippy and compressible while still holding its shape under load. Printed and finished in-house on our UK MJF platform, TPU 01 comes off the machine grey with a soft, matte elastomer surface, then every batch is finished and inspected under one roof before it ships.

Technical data

MJF TPU 01 material properties

Headline properties for our MJF TPU 01 elastomer.

Reviewed by the RYSE 3D engineering team · August 2026. Download the full datasheet below, or have it confirmed with your instant quote. Values vary with geometry and orientation.

Property	Value
Shore hardness	Shore A 88–90
Elongation at break	291%
Tear resistance	61 kN/m
Rebound resilience	63%
Ultimate tensile strength	9 MPa
Build envelope	380 × 284 × 380 mm

Elastomer figures are not comparable with rigid tensile figures. 9 MPa here and 48 MPa for MJF PA 12 describe completely different materials doing completely different jobs — the point of an elastomer is that it stretches and recovers, not that it carries load. No heat deflection temperature is published for this grade.

Download MJF TPU 01 datasheet (PDF) ↓

Applications

What MJF TPU is used for

Where production parts have to stretch, cushion and seal.

Lattice cushioningGrips & handlesSeals & gasketsBellows & bootsVibration dampingFootwear & wearablesSoft-touch end-use partsProtective paddingFlexible ducting

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Why TPU 01

Why choose MJF TPU 01

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End-use tough

61 kN/m tear resistance — a production elastomer for parts in service, not just concept models.

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Stretches & springs back

291% elongation with 63% rebound — parts flex, compress and return to shape, cycle after cycle.

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Lattices no mould can make

The powder supports internal geometry, so cushioning lattices and bellows print freely — no tooling, no release constraints.

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Shore A 88–90

A firm rubber feel — grippy and compressible while holding its shape under load.

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Seals & gaskets

Compresses against mating faces for sealing, vibration damping and soft-touch contact points.

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No tooling, any volume

From one bellows to a production batch — priced by the build, no mould, no minimum order.

Finishing

Most MJF parts arrive grey. Yours don't have to.

Every MJF finish happens in our building, on our machines, with no third party in the chain — tell us where the part ends up and we'll spec the right finish for your TPU with your quote.

MJF part bead-blasted to a uniform matte grey finish at RYSE 3D — **Bead-blasted grey** — as standard. Uniform matte grey, clean detail, ready to fit.

MJF part through-dyed black at RYSE 3D — **Dyed black** — through-dyed so it won't chip or flake, consistent across the batch.

MJF part vapour smoothed to a sealed semi-gloss skin at RYSE 3D — **Vapour smoothed** — chemically sealed to a semi-gloss skin, easier to clean and genuinely sealable.

TPU 01 ships with a soft matte elastomer surface as standard. Elastomers respond differently to dyeing and smoothing than rigid nylons do, so tell us the finish you need at quote and we'll confirm what is achievable on your geometry before you commit.

Design guidance

Designing for MJF TPU 01

Typical guidelines for MJF TPU 01 elastomer. We'll confirm the specifics for your part with a free design-for-additive review at quote.

Design feature	Typical guideline
Build envelope (MJF)	380 × 284 × 380 mm
Turnaround	5–7 days, printed, finished & inspected
Supports	None — the powder supports the part, so lattices print freely with nothing to cut off
Lattices	The signature TPU application. Vary cell size and strut thickness to tune stiffness through the part — one component, several compression zones, no assembly
Powder escape	Every internal void needs a route out for unfused powder. Dense lattices trap it, so design generous escape holes or keep cells open
Sealing faces	Design a defined lip or compressible bead rather than a flat face — a bead seals far more reliably than a flat printed surface
Nesting	Whole beds nested in 3D — cost per part falls as the bed fills, so batch quantities price far better than one-offs
Service temperature	No heat deflection temperature is published for this grade. Treat it as an ambient material and tell us at quote if heat is part of the duty cycle
Bigger than the bed?	Split, print, bond and inspect — though a bonded joint in an elastomer is a weak point, so tell us early and we'll look at the geometry
Finish	Soft matte elastomer surface as-printed; finished and inspected in-house

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Honest limits

Where MJF TPU 01 is the wrong call

TPU 01 gives you rubber behaviour at production volume with lattice geometry no mould could release. What it does not give you is strength, heat resistance or a moulded-rubber surface. These are the cases where something else wins — told straight, so you don't find out after the first batch.

Carrying any load

9 MPa is an elastomer figure. Nothing here should be holding alignment or taking load-path duty — that is a job for MJF PA 12 at 48 MPa or FDM PA6-CF at 109 MPa.

Sustained heat

No heat deflection temperature is published for this grade, so we treat it as an ambient material and won't specify it into a hot environment. Where heat matters, MJF PA 12 is stable to 175 °C.

Fine-detail flexible parts

MJF has a fine grain and no supports, which is what makes lattices possible — but it will not match SLA for crisp small features on a sealing face. For a detailed one-off gasket or grip, SLA Flexible 80A is smoother and softer at 83 Shore A.

A softer rubber feel

Shore A 88–90 is firm. If the part has to squash easily under hand pressure — a soft grip overlay or a low-durometer seal — this is the wrong hardness and no amount of geometry will fix it. Tell us the durometer you need at quote.

Dense trapped-powder geometry

Lattices are the strength here, but a closed cell with no escape route keeps its unfused powder permanently. Design the escape holes in from the start rather than discovering the problem on the first article.

Parts over 380 mm

The MJF bed is 380 × 284 × 380 mm. Beyond that a part has to be split and bonded, and a bonded joint in an elastomer is a weak point that will find the load path in service.

Compare

MJF TPU 01 vs SLA Flexible 80A vs MJF PA 12

Two elastomers and a rigid nylon. Quantity and geometry decide the first pair: TPU 01 prints lattices with no supports and scales to production, while SLA Flexible 80A is softer and smoother for detailed one-offs and sealing faces. If the part doesn't actually need to flex, MJF PA 12 is cheaper and far stronger. Full range on all 3D printing materials.

Property	MJF TPU 01 (this page)	SLA Flexible 80A	MJF PA 12
Process	MJF	SLA	MJF
Character	Firm elastomer	Softer elastomer	Rigid nylon
Shore hardness	Shore A 88–90	83 Shore A	Not on the Shore A scale
Elongation at break	291%	230%	20%
Tear resistance	61 kN/m	28 kN/m	Not applicable
Rebound / resilience	63% rebound	58% Bayshore	Not applicable
Supports required	No	Yes	No
Lattices & internal geometry	Prints freely	Limited by supports	Prints freely
Scales to volume	Strong	Moderate	Strongest
Best for	Lattices, cushioning, seals at volume	Detailed seals, grips, one-offs	Rigid production parts

Note: TPU 01 and Flexible 80A are both elastomers but their figures come from different processes and are not guaranteed to be quoted to the same test methods — the SLA figures are ASTM D412 tensile and D624 tear. Treat the comparison as indicative of family and behaviour rather than a like-for-like ranking, and send us the part if the decision is close.

MJF

All MJF Materials

PA 12, impact-tough PA 11 Gen2 and flexible TPU 01 compared.

See MJF materials → SLA

SLA Flexible 80A

The softer, finer-detail elastomer for seals, grips and one-offs.

See Flexible 80A → All

All 3D Printing Materials

Every material across SLS, MJF, FDM and SLA.

See all materials →

FAQ

MJF TPU 01 FAQ

What is MJF TPU 01?

TPU 01 is a flexible thermoplastic polyurethane elastomer printed on our MJF (Multi Jet Fusion) platform. Shore A 88–90 with 291% elongation and 63% rebound, it stretches, cushions and springs back — a production elastomer for lattices, grips, seals and flexible end-use parts.

How flexible is TPU 01?

Shore A 88–90 is a firm rubber — grippy and compressible while still holding its shape under load, roughly the feel of a heavy-duty seal or a shoe sole rather than a soft squishy gel. It stretches to nearly four times its length before failing at 291% elongation and returns 63% of the energy on rebound.

Can you 3D print lattices in TPU?

Yes, and it is the reason to use this material. Because the powder supports the part, cushioning lattices, bellows and internal geometry print freely with no supports to remove and no release constraint — structures no mould could ever produce. Vary cell size and strut thickness and you can tune stiffness through a single component, so one part does the job of an assembly. Design a powder escape route into every closed cell.

What is MJF TPU used for?

Lattice cushioning, grips and handles, seals and gaskets, bellows and boots, vibration damping, footwear and wearables, soft-touch end-use parts, protective padding and flexible ducting.

How does MJF TPU 01 compare with SLA Flexible 80A?

Quantity and geometry decide it. TPU 01 is firmer at Shore A 88–90, tougher at 61 kN/m tear resistance, prints with no supports and scales properly to production — and it is the only one of the two that can produce lattices. Flexible 80A is softer at 83 Shore A with a smoother, finer-detail surface, which suits detailed one-off seals and grips. Send the CAD and the batch size and we'll recommend one.

Can MJF TPU parts be used as seals and gaskets?

Yes — it compresses against mating faces for sealing, vibration damping and soft-touch contact. Design a defined lip or compressible bead rather than relying on a flat face, since a bead seals far more reliably on a printed part. Tell us the fluid, the pressure and the temperature at quote and we'll be straight about whether it suits.

How heat resistant is TPU 01?

No heat deflection temperature is published for this grade, so we treat it as an ambient material and won't specify it into a hot environment. Where heat is part of the duty cycle, tell us at quote — MJF PA 12 is stable to 175 °C if the part can be rigid.

How many TPU parts can you produce?

Our instant quote handles anything from one part to 100,000. MJF prices by the build rather than by the part, so the cost per part falls as the bed fills — and there is no mould and no minimum order, which is the whole point compared with moulded rubber.

Where can I find TPU 01 material properties and a datasheet?

The key material properties are listed above, and you can download the full MJF TPU 01 datasheet (PDF) or have the figures confirmed with your instant online quote.

How do I order flexible TPU parts in the UK?

Upload your CAD to our instant online quote and select MJF TPU 01. As a UK 3D printing service bureau we print, finish and inspect every part in-house in Shipston-on-Stour, Warwickshire, and ship UK-wide — from a single lattice prototype to a hundred thousand flexible production parts, in 5–7 days.

Get your TPU parts priced in seconds.

Upload your CAD for an instant online quote in MJF TPU 01 — from a single lattice prototype to 100,000 flexible production parts, priced by the build. Printed and finished in the UK.

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Printed and finished at our own ISO 9001 facility in Shipston-on-Stour, Warwickshire. Call us on 024 7736 0144.