In stockSainSmart
SainSmart TPU flexible filament, 1.75 mm, 0.8 kg
1.75 mm · 0.8 kg
2 options available
From £28
Material: Flex
Prusa Research 4.5/5 on Trustpilot (opens in a new tab)company reviews, not this product

SKU PRUSA-3846-0
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Prusament TPU 95A 10x spool multipack. Every Prusament color is formulated and locked to a documented spectroscopic recipe. Material: Flex.
Prusament TPU 95A 10x spool multipack · Technical features from Prusa Research.

Prusament is manufactured in our facilities in the Czech Republic (Europe) and Delaware (United States). That means faster shipping, lower import duties where applicable, and a supply chain under our full control.
There's no third-party manufacturer who can quietly change a raw material supplier. No surprise batch failures from a factory you've never visited.

The Prusament TPU 95A offers very low moisture absorption and high hydrolysis resistance. Its high elasticity and impact resistance remain even at low temperatures (as low as -50 °C). Finally, this material is resistant to microbial degradation, comes with good temperature resistance (HDT 78.6 °C at 1.80 MPa), and great chemical resistance (mostly to oil and grease).

TPU (in general) is hard to manufacture while maintaining a precise and consistent diameter. Most manufacturers don’t consider this issue and simply sell their filaments with significantly varying diameters. We can proudly say that our TPU is truly 1.75 mm in diameter; however, for maximum transparency, we’re stating 0.06 mm as the highest tolerance. As always, you can check each individual spool for manufacturing data and see for yourself.

We worked on several factors that make printing of Prusament TPU 95A as easy as it could be: first, there’s the precise diameter. Second, there’s a chemical modification of the polymer, which, in its final state, is harder to deform. This prevents filament from being entangled in the extruder gears. Third, the Nextruder (MK4/S, CORE One, XL) is built in a way that makes printing soft filaments easier than ever.
New spools with OpenPrintTag
Starting October 2025, all Prusament filaments ship on a redesigned spool with a fully rewritable NFC tag powered by the OpenPrintTag standard.
The OpenPrintTag attached to your Prusament spool contains essential data about the material and can be read with the Prusa mobile app. It works entirely offline, it is free to extend, and open for anyone to build upon.
The details that matter
Manufacturer figures, with plain-English notes where useful.
8 specifications
We recommend using the Satin or PA Nylon sheet instead. If you need to use a smooth sheet anyway, don’t forget to apply a separation layer onto it.
Prusament TPU 95A absorbs moisture and may be prone to stringing during the print. This can be significantly reduced by drying the filament and storing it in a drybox. You can use the Prusa USS Drybox , for example.
TPU's biggest advantage isn't flexibility but its extreme wear resistance. When printed in thin layers, the material is soft and flexible. But when printed in thick layers, the models printed from TPU get virtually indestructible.
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