Getting Started with 3D Printing
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Product label:
TPU Flex Filament - D53
Eolas Prints
SKU: TPU-D53-1.75M-BLK-1KG
Increments of 1
Minimum of 1
Maximum of
Low stock
In stock, ready to ship
Sale price
304,00 DKK
-100%
Regular price
0,00 DKK
Regular price
304,00 DKK
Unit price
per
Tax included.
Shipping calculated at checkout.
TPU Flex Filament - D53
Sale price
304,00 DKK
Regular price
0,00 DKK
Regular price
304,00 DKK
Unit price
per
Couldn't load pickup availability
Spain & Portugal (Mainland): Order before 4PM to receive it tomorrow. Except weekends.
Rest of the world: Express shipping options available at checkout.
EU VAT Exempt: No VAT on all EU B2B orders. Please contact us.
Spain: Electronic invoicing options available via FACe. Please contact us.
Spool dimensions
Our spools are compatible with all major 3D printer brands including Prusa, Bambu Lab (AMS & AMS Lite), Flashforge, and more. The standardised axle diameter ensures seamless integration with your existing equipment.
|
Specification |
1kg |
2kg |
5kg |
8kg |
10kg |
15kg |
20kg |
|---|---|---|---|---|---|---|---|
|
Outer Diameter (d1) |
200 mm |
300 mm |
350 mm |
335 mm |
335 mm |
335 mm |
335 mm |
|
Inner Diameter (d2) |
105 mm |
212 mm |
180 mm |
190 mm |
190 mm |
100 mm |
100 mm |
|
Hub Diameter (d3) |
52 mm |
52 mm |
52 mm |
51 mm |
51 mm |
31 mm |
31 mm |
|
Axle Diameter (d5) |
11 mm |
11 mm |
12 mm |
20 mm |
20 mm |
20 mm |
20 mm |
|
Flange Width (e1) |
44.5 mm |
44.5 mm |
44.5 mm |
70 mm |
70 mm |
70 mm |
70 mm |
|
Spool Length (l1) |
68 mm |
100 mm |
100 mm |
245 mm |
245 mm |
Variable |
Variable |
|
Winding Length (l2) |
59 mm |
90 mm |
90 mm |
220 mm |
220 mm |
Variable |
Variable |
|
Winding Volume |
1,342 cm³ |
3,220 cm³ |
6,366 cm³ |
13,147 cm³ |
6,366 cm³ |
— |
— |
|
Nominal Weight |
— |
600 gr |
600 gr |
1,050 gr |
1,050 gr |
— |
— |
Have a question?
Description
Eolas Prints TPU Flex D53 is the softest grade in our flexible filament range — a Shore D53 thermoplastic polyurethane designed for applications where comfort, skin contact, and conformability matter most. It is softer and more pliable than both 93A and D60, making it the right choice for wearables, orthopaedic supports, prosthetics, and any part that needs to flex gently against skin.
Key Properties
| Shore hardness | D53 — soft and conformable |
| Density | 1.21 g/cm³ |
| Diameter tolerance | ±0.08 mm |
| Food contact safe | Yes |
| Skin contact safe | Yes |
| Toy safe | Yes |
| Extruder compatibility | Direct drive only — not compatible with Bowden systems |
Shore Hardness in Context
D53 is significantly softer than our other TPU grades. To put it in perspective: D53 feels like a soft rubber eraser, 93A feels like a car tyre, and D60 feels like a hard rubber sole. Choose D53 when the part needs to flex easily and conform to a surface or body — not when rigidity or wear resistance is the priority.
Extruder Requirements
TPU D53 requires a direct drive extruder. It is not compatible with Bowden systems. At D53 hardness, the filament is too soft to push through a long Bowden tube — it will buckle and jam before reaching the nozzle. Direct drive extruders (Bambu Lab, Prusa MK4, Voron, Ratrig) handle D53 reliably. If you are using a Bowden printer, consider our TPU D60 UV Resistant instead, which is compatible with short Bowden setups.
Bambu Lab AMS is not compatible with TPU — load D53 exclusively via the external spool holder.
Recommended Print Settings
| Nozzle temperature | 220–230°C |
| Bed temperature | 50–60°C |
| Print speed | 10–20 mm/s |
| Retraction | 0–0.5 mm (minimal retraction) |
| Cooling fan | 50–70% |
| Extruder | Direct drive only |
Drying Before Printing
TPU D53 is highly hygroscopic. Dry at 50–60°C for 4–8 hours if the spool has been open for more than a few days. Wet filament causes stringing, surface bubbles, and weak layer adhesion. Store in a sealed container or dry box with silica gel desiccant between sessions.
Recommended Applications
- Wearables and skin-contact devices — wristbands, sensor mounts, smart textile components
- Prosthetics and orthopaedic supports — socket liners, soft padding components
- Custom grips and handles for tools and sports equipment
- Food-safe kitchen accessories — jar grippers, bottle openers
- Gaskets and seals requiring soft, conformable contact
- Flexible prototypes where material compliance is critical
Manufactured in Spain
TPU Flex D53 is manufactured at Eolas Prints' facility in Cantabria, Spain, under ISO 9001 and ISO 14001 standards. Available in 1.75mm and 2.85mm in Black, White, and Grey.
Download print profiles
Achieve superior 3D printing results with our custom print profiles, expertly calibrated for Eolas Prints filaments. These profiles are meticulously developed to ensure optimal performance, saving you time on configuration and testing. By using our dedicated print profiles, you can expect consistent quality and reliability with every print.
Bambu Studio
Prusa Slicer
Idea Maker
Ultimaker Cura
Shipping policy
When do you ship?
We ship daily from stock. Orders placed after 1PM and 4PM on Fridays are shipped on Monday.
| Spain & Portugal | Orders placed before 4PM CET are shipped the same day. |
| Rest of the world | Orders placed before 1PM CET are shipped the same day. |
How do you ship?
Shipping times and options are available at checkout.
| Spain & Portugal |
GLS: Next Business Day UPS: 1 - 2 Business Day |
| Rest of Europe |
UPS Standard: 2 - 5 Business Days UPS Worldwide Saver: 1 - 2 Business Days UPS Express: 1 - 2 Business Days (Before 2PM) |
| North America |
UPS Worldwide Saver: 1 - 2 Business Days UPS Express: 1 - 2 Business Days (Before 2PM) |
| South America |
UPS Worldwide Saver: 2 - 5 Business Days |
| Middle East |
UPS Worldwide Saver: 1 - 2 Business Days UPS Express: 1 - 2 Business Days (Before 2PM) |
| Asia |
UPS Worldwide Saver: 5 - 7 Business Days |
| Australia & New Zealand |
UPS Worldwide Saver: 5 - 7 Business Days UPS Express: 3 - 5 Business Days (Before 2PM) |
How about Taxes & Duties?
| Taxes and custom duties are included only for EU countries. For rest of the world, UPS our logistics provider will get in touch with you pay any import duties or taxes based on your destination country. |
Our Guarantee
Specifications
Material
Polyurethane elastomer
Density
1.17 g/cm3
Hardness
D53
Features
Abrasion resistance, High resistance to micro-organisms, Polyether based, 450% Elongation @ break, and Food contact safe.
Heat deflection temperature - HDT
N/A
Vicat softening temperature
N/A
Print temperature
195 - 240 °C
Bed temperature
0 - 60 °C
Print speed
20 - 65 mm/s
Nozzle
0.15 - 1.2 mm
Cooling
0 - 100 %
Chamber
Not Mandatory
Dry box
Recommended
Adhesive
Not mandatory (Use one for increased adhesion)
Diameter tolerance
± 0.08 mm
Compatibility
FDM (Fused Deposit Modelling) & FFF (Fused Filament Fabrication)
TPU Flex Filament - D53
In stock, ready to ship
Sale price
304,00 kr
-100%
Regular price
0,00 kr
Regular price
304,00 kr
Unit price
per
Why Choose Us?
-
Worldwide Shipping
-
Premium Quality
-
Technical Support
-
30 Days Returns Policy
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100% Secure Payments