eSun eFlex 3D Printing Filament 1.75mm 1kg-Natural



Transparent, Soft texture, With high resilience. Fluent printing, Economic type products, High elastic, Good molding, Milk white.


  1. TPU rubber based.
  2. Very flexible and elastic.
  3. Shore A Hardness at 87A.
  4. Tensile Strength 52 MPa.
  5. Best print temperature: 210~230℃
  6. Base temperature: No Heat/(60-80)℃


Over the years 3D printing has evolved excellently and this technique plays a major role in different industries such as manufacturing, medicine, art, design etc., 3D printing filaments are thermoplastic raw materials used for filament freeform fabrication. The kind of flexible filament used impacts the process of 3D printing. A good filament is the one which has a higher consistency of diameter and which is evenly wound on the spool with an accurate tension without getting tangled when unwound.

The brand new eSun’s Platinum eFlex 3D printing is the best-known flexible 3D printers available in the market. It has got everything like transparent, Soft in texture, with high resilience, Fluent printing, Economic type products, High elastic, good molding, Milk white.

eFlex is a kind of transparent soft elastic material, or soft PLA, with high flexibility and very high mechanical strength (flexural tensile resistance), wear resistance, aging resistance. It is also very good at chemical resistance, water resistance, oil, and solvent resistance. Not only that, but eFlex also has waterproof, cold proof and anti-ultraviolet features. This type is available in white currently and has a greater demand when compared to other eSun products available due to its flexibility again with a best print temperature ranging between 210~230℃. The Base temperature is No Heat/ 60-80℃.

Printing with flexible filaments is yet another way to expand your 3D printer capabilities. Unlike most common materials (such as PLA or PET-G), these prusa filaments offer flexibility, great adhesion between the layers and often also elasticity. Printed objects can be not only flexible but extremely resistant to mechanical wear or damage as well. However, there are some downsides, too. Printing these filaments requires a more thorough pre-printing preparation, plus some tweaking and tinkering – in layman’s terms: having some experience with 3D printing is a huge plus.

There are two types of materials being used for 3D printing: TPE (Thermoplastic Elastomer) and TPU (Thermoplastic Polyurethan). Although having two different names, TPU is actually a type of TPE material; the main difference between them is mainly in shore hardness. Plastics called as TPU are usually tougher, their hardness is somewhere around 60A-90A on the shore hardness scale. 

Note that flex filament is soft.  You need to take special steps to ensure a smooth printing of flex materials, no matter from which vendor.

eSUN filaments are high-quality professional-grade filaments and are compatible with all FDM printers such as MakerBot, Reprap, UP, Afinia, Flash Forge and all FDM 3D Printers. Ensure that the printer is capable of handling flexible filament.

Depending on our interest and usage the product is indeed worth a try.

For more 3D printing filament

Additional information

Weight 1.6 kg
Dimensions 20.4 × 21.9 × 7.5 cm



1 kg/spool


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