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5 Best flexible filament brands in 2021

5 Best flexible filament brands in 2021 - Reviews

Flexible filaments can give you a whole new perspective on 3D printing. It can make you enjoy printing more than before and give your prints a beautiful look. Flexible materials are used for printing a range of objects, but you need first to understand how to use them appropriately.
Before you visit the market to purchase a flexible filament for printing, it'll be wise to know which brand is the best for your needs. There are various available brands, each with their respective features and suitable for different kinds of prints. You must know all these features so you can make a wise choice.
Here, we've prepared a list of 3D flexible filament brands for you together with their features plus pros and cons. They should help you make the right choice. Below are the five best flexible filament brands:

5 Best flexible filament brands in 2021


1. Zyltech Black TPU

Zyltech Black TPU

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Zyltech filament is a beautiful flexible filament for printing. TPU is an acronym for Thermoplastic Polyurethane — a subclass of thermoplastics suitable for printing strong, flexible parts. It is famous for its strength and flexibility. It works well with all 3D printers in the market, which accept 1.75 mm filament. It is ultra-flexible, doesn't break easily, and Perfect for making smooth printing without clogs. It is specifically made for those looking for a filament made of environmentally friendly materials. It is also vacuum-sealed, which helps keep away dust and moisture that can affect prints' quality.
Zyltech has excellent adhesion strength, has less stringing and controllable bridging. Its exceptional adhesion strength makes it easily adhere to printer beds, thus, making printing easier. This brand has a weight of 1 kg (about 2.2 lbs) and a diameter of 1.75 mm. You can get Zyltech Black TPU for less than $23. Hence, if you need to purchase a budget-friendly filament brand, this is not a bad option to choose from. It is one of the most affordable flexible filament brands you can buy to make quality prints.
For a smooth print with this brand, you should maintain an extrusion temperature of 200°C – 240°C and keep your printing speed at 20-60 mm/s. Your bed temperature should be kept at 50-90 °C. Zyltech has a shore hardness of 95A, and its tolerance is ±.05mm.

What I Like About This Brand

  • It is affordable
  • High strength and flexibility
  • Works well with all 3D printers that accept 1.75 mm filament.
  • Perfect for making smooth printing without clogs.
  • It is made of environmentally friendly materials
  • Vacuum sealed
  • Excellent adhesion strength

What I Don't Like About This Brand

  • Printing with this brand requires technical knowledge

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2. NinjaTech Ninjaflex Flexible Filament

NinjaTech Ninjaflex Flexible Filament

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NinjaTech is a leading flexible filament brand with incredible features. This brand comes with superior flexibility and longevity, better than other brands made of non-polyurethane materials. It is made for those who need a flexible filament made from a specially formulated thermoplastic polyurethane (TPU) material.
One of this 3D flexible filament brand's outstanding features is that it boasts of a low-tack, easy-to-feed texture. If you use Ninjaflex, you'll get a uniquely flexible print with a strong texture. It has a shore hardness of 85A and 660% elongation. Ninjaflex allows for repeated movement and impact. With this brand, you don't have to be worried about wear or cracking.
With Ninjaflex, you're assured of having a consistent diameter and reliable, high-quality prints. It is also chemical resistant to many materials. Thus, your prints will not be chemically attacked when it comes in contact with substances like naphtha, petroleum, ASTM Oils #1-3, and Freon.
It is suitable for high-temperature printing. Hence, you can set your extruder temperature up to 225°C – 235°C. It also works well at a high print speed of 15-35 mm/ sec (900-2100 mm/ min).
Ninjaflex is a popular brand, and it has become so famous that it is already becoming synonymous with flexible filament. Therefore, when most people hear 3D flexible filament, they automatically think of Ninjaflex.
If you select Ninjaflex for your printing project, you don't need to get infill before you can make flexible objects. You can get this beautiful flexible filament for printing for just $45, cheaper than most flexible filament brand.
You'll find two different types of flex filament of this brand — TPU filament and the semi-flex filament. However, TPU filament is more popular and easier to use than the semi-flex filament. On the other hand, if you need a more rigid filament, the semi flex filament will be a better option.

What I Like About This Brand

  • It has superior flexibility and longevity
  • Excellent print results
  • It doesn't wear or crack
  • Easy to use
  • Chemical resistant
  • High-quality prints
  • Recovers original shape after deformation
  • Works with virtually any standard 3D printer

What I Don't Like About This Brand

  • Unprotective filament packaging

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3. Lay-filament Flexible filament

Lay-filament Flexible filament

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The Lay-filament flexible filament is a beautiful flexible filament brand with a nominal diameter of 1.75 mm and high flexibility. It comprises 35% recycled wood plus a binding polymer. Hence, with this filament brand, you can print flexible objects with the smell and look of wood. You can also do other things with your creation, just as you do for woods. Such things include grinding and painting.
Being a highly flexible filament, you don't need heat to bend your prints if you use Lay-filament. One of the reasons many people opt for this brand is that it allows you to change your prints' brightness by varying the extruder temperature. Hence, the brightness you will get with a low temperature will be different from what you'll get when you use a higher extruder temperature. At 180 °C, your print will have a light color, while it'll become darker at 245 °C. However, the elasticity of your printed material will be higher in darker layers. The lower the extrusion temperature, the less elastic your print material will be. Hence, if you want a high elasticity when you use this brand, you should print with a high extrusion temperature.
Lay-filament has a diameter tolerance of +/-0.1 mm. Its print bed temperature is 40 degrees Celsius. This filament sells at a price slightly above $30. Therefore, it is one of the most affordable flexible filament for printing you'll find in the market. If you're looking for a filament that can make flexible prints and create innovative decorative pieces, choosing a Lay-filament brand is not a bad idea.

What I Like About This Brand

  • Allows you to choose between bright or dark colors by just varying temperatures
  • It allows users to grind and paint their creation
  • Affordable
  • High flexibility

What I Don't Like About This Brand 

  • Only works with certain printers 

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4. Taulman3D T-lyne Flexible Filament

T-lyne Flexible Filament

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This brand is specifically made for people looking for a unique super durable material with incredible flexibility. If your print is designed with T-lyne, it can be softened or reshaped by dunking it in warm water. This ability to reshape is a unique feature of this brand. It contributes significantly to why most people go for it as their choice of filament. After it has been reshaped by dunking in warm water, it can be hardened again by immersing in cold water. This is a feature you rarely find in another flexible filament brand.
Amazingly, after your creation has been reshaped, it will maintain the shape as though it was printed that way. This makes T-lyne an ideal filament for printing prosthetics as well as customized medical appliances. Taulman3D T-lyne has a print temperature of 185°C to 220°C. However, if you use smaller nozzles, you can use a higher temp up to 235°C. It has a print speed of 25mm/s and a print bed temperature of 40°C.
T-lyne is a beautiful, crystal clear polyethylene copolymer with unique viscosity and a wide temperature range. Its high durability is another factor why you'll fall in love with it. That's not all. With this brand, you can obtain a glass-like aesthetic at high layer sizes. To achieve this, all you need is to use low speed and low temperatures when printing. The printing temperature should be maintained at 185 C to 242 C.
To print utility-style parts with this filament, just set your temperature a bit higher. 245 degrees Celsius is fine in this case, depending on nozzle size. You can design a clear print with this filament such that you can quickly look through and see where necessary adjustments are required.
The surface of Taulman3D T-lyne is not slippery; therefore, if you use this brand to print hand tools, you don't have to be bothered about it slipping out of hand.

What I Like About This Brand

  • It is highly durable and flexible
  • Ability to reshape creation by just dunking in water
  • The surface is not slippery
  • Unique viscosity and a wide temperature range
  • It gives a glass-like aesthetic

What I Don't Like About This Brand 

  • Not suitable for printing rigid objects 

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 5. YOYI Flexible Filament

YOYI Flexible Filament

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YOYI Flexible Filament is a brand with a shore hardness of 85A. If you print with the YOYI brand, you'll have an ultra-smooth print with no bubbles. It has an excellent bed adhesion with low- warp and low-odor. These unique features make printing easy with this filament. It has a dimensional accuracy of ±0.02 mm, better than what you'll get from other flexible filaments.
The excellent bed adhesion of this filament makes it a perfect option for various projects without warping. It works with all FDM printers on the market, which accept 1.75 mm filament. YOYI Flexible Filament comes with a one-month free trial and 30-day money-back. Hence, if you're not fully satisfied with it, you will get a refund, provided the filament has not been opened.
To have a successful print with YOYI flexible, ensure that the print speed is kept low and consistent. The recommended extrusion/nozzle temperature of this filament is 200°C – 210°C (392℉~ 410℉), while its heat bed temperature is 60°C – 80°C (140℉~ 176℉).
You can get YOYI Flexible Filament for less than $30. Therefore, it is more affordable than most of the popular flexible filament for printing with similar qualities.
If you are always irritated with the smell of filaments, you may want to try out this brand. It has no smell, which means you will be more comfortable working with it. It also doesn't clog nor tangle. This means it'll remain nearly rolled both when in use and when not in use. If you've ever fallen victim to a tangled filament, you'll understand the importance of this feature. A tangled filament can be frustrating, and it may cause delays during printing. However, with YOYI Flexible Filament, that is nothing to worry about. The YOYI Flexible Filament also has minimal warping.

What I Like About This Brand

  • Ultra-smooth print with no bubbles
  • Excellent bed adhesion with low- warp
  • A high dimensional accuracy
  • Budget-friendly
  • Has no smell
  • Minimal warping

What I Don't Like About This Brand

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THE VERDICT

A flexible filament brand is not suitable for all sorts of printing. They're the best for anyone who desires to make compressible objects that can easily assume their original shape after compressing. On the other hand, if you need a filament for rigid printing, you may want to look for other filament types because this is not what you need. For those looking for a flexible print, flexible filament will do the magic for you.
Zyltech Black TPU is the overall best of all the listed flexible filament brand, and it owes this to a couple of reasons. It is highly affordable and works well with all 3D printers that accept 1.75 mm filament. It is also suitable for smooth printing without clogs, and it is made of environmentally friendly materials.

CONCLUSION

Don't be overwhelmed with the many available options available. Consider all the features explained plus their pros and cons. Look for anyone that fits perfectly into your needs and go for it. This is the right way to select wisely without getting overwhelmed with the many available options.

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