In stockSainSmart
SainSmart TPU flexible filament, 1.75 mm, 0.8 kg
1.75 mm · 0.8 kg
2 options available
From £28
Material: PA (Nylon)
Prusa Research 4.5/5 on Trustpilot (opens in a new tab)company reviews, not this product
1 / 6SKU PRUSA-4141-0
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Prusament PA11 Natural 800g (NFC). Prusament is a premium-grade material made by the same people who build the printers. Material: PA (Nylon).
Prusament PA11 Natural 800g (NFC) · 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.
PA11 is a type of polyamide used primarily in SLS technology and is very rare in the field of FFF 3D printing. Commonly used PA6 and PA12 polyamides have several disadvantages: PA6 is extremely hygroscopic, making it very difficult to print with it even 1 day after unpacking. PA12 isn’t as hygroscopic, but it warps extremely and has very poor adhesion to standard print sheets. PA11 is a good middle ground – it’s less hygroscopic, warps less, and offers better adhesion to various print surfaces.

Prusament PA11 offers low friction and good abrasion resistance. Combined with decent mechanical properties (impact and tensile strength), it's perfectly suitable for printing gears and other moving parts.

PA11 has good resistance to bases (e.g. NaOH), alcohols (Methanol, Ethanol), toluene, acetone, motor oil, petrol, diesel, etc. This makes it usable in laboratories and, again, in automotive and other demanding industry fields.
Prusament PA11’s tensile strength anisotropy coefficient reaches r=0.84 when printed with Prusa Core One+. This is the highest value of all Prusaments. This means the material is much harder to break and withstands stress in every direction, no matter the layers’ orientation. This vertically printed umbrella holder serves as a good example.
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.
Prusament PA11 can easily peel and warp when printed on conventional sheets. Sure, smaller models with sparse infill can be printed on PEI sheets coated with stick glue, but for reliable printing of technical models, you need something better. Prusament PA11 in particular can easily peel and warp when printed on conventional sheets. That’s why we have developed a new surface layer of a special material that provides significantly better adhesion for polyamide printing materials.
The details that matter
Manufacturer figures, with plain-English notes where useful.
9 specifications
This print sheet gets damaged when cleaned with isopropyl alcohol, acetone, or other chemicals. Instead, the sheet's surface should be washed with water before use. If you need to degrease the surface, wash it with dish soap.
PA11 adheres strongly to the PA Nylon Sheet. We recommend applying a thin separation layer to prevent any damage, especially when printing large components.
If the absorbed humidity reaches high levels, the print quality will deteriorate. Deterioration occurs between a few days and a month. If you are not sure how long it has been since you opened the sealed bag or if you haven’t been printing for a long time, we recommend drying the filament at 90 °C for 6-8 hours before printing.
We recommend printing in a well-ventilated room because PA11 may release a noticeable odor into the air and produce ultra-fine particles. Printing on an enclosed 3D printer helps contain the odors and particles, plus the increased temperature may improve layer-to-layer adhesion.
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