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Material Info
Design Guidelines


Also known as Thermoplastic Polyurethane


White Strong & Flexible

About TPU

Thermoplastic Polyurethane, or TPU, is an industry-standard flexible, rubber-like material that is great for elastic end-use products. Printed using Selective Laser Sintering (SLS), a robust process that solidifies material layer-by-layer, TPU parts are durable and can include interlocking features.

Common Applications

Automotive, Medical, Robotics, Hoses, Seals, Footwear, Helmet interiors, Toy tires

Material Properties

Rubber-like Flexibility
Good Impact Resistance

Handling and Care

Melting Temp 95C/203F

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Frequently Asked Questions

What colors are available for this material?

TPU is available in Natural (off-white).

How long will it take to receive a model in this material?

Production time depends on the model size, but usually products ship within 13 business days.

How is this material made?

This material is made using Selective Laser Sintering (SLS) technology. A bed of powder is sintered with a laser layer-by-layer, solidifying the powder into TPU. The unfused powder acts as the support material and no additional support structures are needed.

Technical Documents

More Materials

Professional Smooth Finish

High Strength & Durability


Cases & Mounts
Mechanical Parts
Multi-Jet Fusion
Good Strength
Many Colors Available
High Density
Tools & Accessories
Home Decor
Binder Jetting
  • Bounding Box
  • Wall Thickness
  • Wires
  • Surface Details
  • Escape Holes
  • Clearance
  • Sprues
  • Interlocking Parts
  • Multiple Parts
  • Accuracy
  • Design Tips
  • Pricing


200 x 200 x 200 mm
15 x 15 x 0.7 mm
X + Y + Z ≥ 15.0 mm

Your model should be the minimum and maximum bounding box sizes. The maximum bounding box represents the largest model that that we can manufacture. The minimum bounding box size is the smallest dimension in which we can manufacture in this material.


Minimum Supported Wall Thickness
0.7 mm
Minimum Unsupported Wall Thickness
0.7 mm

A supported wall is connected on at least two sides. Walls in your model must meet the minimum measurements to ensure it survives the printing and cleaning process. Thin walls are prone to warping during printing and are fragile to clean. Objects that meet the minimum requirements may still be rejected based on the geometry in which case our production team will communicate with you if the design needs improvements and can assist you to strengthen your model.


Minimum Supported Wires
1.0 mm
Minimum Unsupported Wires
2.0 mm

A geometry considered a wire when its thinner in both unconnected directions than its length. Wires that are under our suggested minimums are prone to breaking in the cleaning process, or warping.


Min embossed detail
1.0 mm high & wide
Min engraved detail
1.5 mm high & wide

We recommend these minimum measurements for details like embossing or engraving, based on printer resolution.


Single Escape Hole Diameter
4.0 mm
Multiple Escape Hole Diameter
3.0 mm

Pressurized air is used to blast excess powder from models that are hollow, or contain hollow cavities. In order for us to safely do this, escape holes need to be larger than 4.0 mm in diameter. For models larger than 50.00 mm鲁 we require two or more escape holes at least 3.00 mm in diameter.

A single escape hole at the end of a cavity will not allow material in the corners near the escape hole to fully escape. So we recommend multiple escape holes at both ends of the cavity.


1.0 mm

Clearance is the space between two parts, e.g. space between gears or a ball and socket joint.


1.5 mm thick, attached in at least 2 places per part

Sprues are wires that keep two models together. Sprues are more likely to break compared to other wires because they typically connect parts with high mass on either side. For this reason, they need to be thicker than our minimum wire thickness.



TPU is printed with an SLS process that uses a laser to fuse together nylon powder. This enables interlocking parts, as long as the distance between them is greater than the indicated minimum.


Up to 250.


卤 0.3- 0.7 mm for every 100 mm

Please note: Geometries tend to print larger than designed and small features (close to the minimum guidelines) experience greater dimensional variation than large features.


Print Lines or "Stepping"

A "staircase" effect, or print lines, can occur on the surface of your print. These can become more pronounced on curved and angled surfaces.

Preventing Warping

Making your design more stiff (increasing torsional rigidity) will reduce the risk of warping. Longer walls need to be thicker than short ones.

Wiry and Delicate Parts

Thin, wiry models with weak geometries are very difficult to print without damaging the part in the cleaning process. These models typically require multiple reprints which delays production. Parts that eventually print successful are very prone to breaking during shipping. For these reasons, parts that are too delicate to print may be rejected and our staff will work do their best to help you improve your model for LOL电竞下注 printing.

Avoid "Spikes"

If your model has spike-like geometry where the spike is longer than it is wide, it's possible for it to break in the cleaning process.


Our production team does their best to evaluate your product and orient it to optimize either dimensionally accuracy or aesthetics depending on the application. Generally, the top surface will have more visible stepping than the bottom surface. The mating surface and other important features like holes are the most accurate when placed in the horizontal plane.

Holes & Small Holes

We cannot clean holes that are too small compared to their depth. Additionally, tubes with corners can be difficult to reach and we may not be able to fully clean your model.

We recommend creating multiple access points to holes and small tubes so that we can properly clean your model.

Laser Lines

Our printers operate with two lasers at the same time. If a product in the printer is located in the overlap plane where the two lasers meet, miniscule calibration differences between the lasers may create a visible line on the surface of the product. We aim to arrange products in the printer away from the overlap plane. However, products larger than 33cm long in any direction may be too large to fit in one laser's area, so you may see a visible line along the overlap plane on your product.


Please do not design threads into your TPU parts as threads printed in TPU will not be functional.


How will the price of my model be calculated?

  • Material Volume - the amount of material needed to LOL电竞下注 print your product
  • Machine Volume - the amount of space your product takes inside our LOL电竞下注 printers
  • Number of parts - a part is a piece of a model that can be separated from other pieces of the model
  • Production - associated production costs including labor; quality control; machine maintenance; general utilities; and other supporting services required to LOL电竞下注 print your product

What is the minimum price per part?




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