FlexiFil™ filament is a rubber-like 3D printer filament which allows you to print flexible objects, such as rubber machine parts, soft toys, flip-flops, and other rubbery items. FlexiFil™ opens doors to a whole new field of application when it comes to desktop 3D printing. It’s up to your own imagination what you would like to create and print. FlexiFil™ is a flexible Thermoplastic Co-Polyester 3D printer filament with a Shore hardness of 45D.
FlexiFil™ is a revolutionary new rubber-like high-performance Thermoplastic Co-Polyester (TPC) filament. FlexiFil™ has unique flexural strength properties, as 3D printed objects with FlexiFil™ will have a “flexural memory”, allowing objects to return back to their original position after being bent, dent, or folded.
FlexiFil™ is not only a flexible filament. It has quite some more remarkable characteristics. FlexiFil™ is a high-performance TPC that offers a unique combination of flexibility, high temperature resistance, strength, and an excellent UV resistance and good resistance to chemicals. The combination of above features make FlexiFil™ a unique filament in its kind.
FlexiFil™ filament is a BIO-performance TPC with a substantially reduced carbon footprint compared to typical Co-Polyester 3D printer filaments, as FlexiFil™ is partially made out of renewable carbon content, such as bio-based oils.
Unique features of FlexiFil™ filament
Very flexible / Flexural memory
Good resistance to chemicals
Excellent UV resistance
Long term heat resistant
The Charpy Notched Impact Strength Test method indicates “No Break” for FlexiFil™, meaning that FlexiFil™ will not deform, or break when stressed by bending.
Product Specifications FlexiFil™ filament has a great roundness and very tight diameter tolerances. This flexible TPC 3D printer filament is spool-wrapped on a polystyrene plastic spool with 500 grams of filament.
Filament Net Weight:
0.5 Kg ± 2%
Spool Size (D x h):
200 mm x 55 mm
Spool Hub Diameter:
Carton Box Size (L x W x H):
220 mm x 220 mm x 70 mm
For more technical specifications about our FlexiFil™ 3D printer filament, please have a look at the 'SPECIFICATIONS' tab.
General Tips & Tricks for printing with FlexiFil™ It is recommended to significantly lower your printing speed (compared to printing with PLA, or ABS) when printing with FlexiFil™. The guideline for an optimal printing temperature is to print at approximately 210°C. The recommended heated bed temperature varies between ± 60˚C and ± 100˚C. Various other options (also without heated bed) are possible depending on the type and size of the object to be printed.
In order to get a good first layer adhesion it is important that your print bed is really level and clean. Depending on the printer it can also help to use a glue stick to improve the first layer adhesion. A combination of Blue Tape, like Eurocel Blue Masking Tape, and glue stick can also do wonders.
The flexibility/rubbery characteristics of FlexiFil™ can cause some friction in the printer’s bowden tube, resulting in unstable feeding process of the filament into the extruder. As a remedy one can use a tiny bit of lubricant – like WD40 – in one’s bowden tube in order make sure there won’t be any friction.
Please do keep in mind that above recommendations are only guidelines and that every desktop 3D printer requires different settings for optimal printing results.
As FlexiFil™ is a relatively new 3D printer filament we would like to receive as many feedback as possible with respect to user experience and optimal printer settings for as many desktop 3D printers as possible. We can then compile a “tips & tricks” document for a wide range of desktop 3D printers to share with our fellow 3D printing enthusiasts.
So, we would like to ask you to tweak around with your printer settings and please do share your experiences with us. We will be very grateful for your input!
Filament Net Weight:
± 0.5 Kg
± 0.05 mm
Print Temperature Guideline:
220 - 260° C
Glass Transition Temperature:
Ovalidity Tolerance (max):
Print Speed Guideline:
10 - 20 mm/s
Fabian Posted on 15 May 2015 at 15:51
Prints great at 210C on UP! Plus on all speed levels (fine, normal and fast). It works fine with all these 3 settings. There were some problems with the stiffness of the thin vertical parts during the print. But in general the result is of decent quality. Flexifil is a very resistant material.
Meir Bienenstock Posted on 16 October 2013 at 19:22
Printing with a Makerbot Replicator 2. This has been printing beautifully for me at the standard 230C. It helps to slow it to 50 mm/s, but it works fine at 90 mm/s as well. I use cubify cubestick on the print bed, and it has been sufficient.
Radim, are you using the Makerbot plunger upgrade? I had similar feeding trouble until I upgraded, now it works perfectly.
Julia Truchsess Posted on 16 October 2013 at 02:05
I love this stuff. It feeds very easily, adheres well to glue stick or hairspray or perfboard, and makes good parts at 210C and layer heights of 200-300 microns. I've found that slow speeds are necessary, at least with my Up/Afinia. Here's a part I made with it: http://www.thingiverse.com/thing:166406 and here's another, more complex one: http://www.pp3dp.com/forum/viewtopic.php?f=11&t=23119
radim petruska Posted on 14 October 2013 at 23:43
I am using Makerbot replicator 2. Blue painters tape on the board. I would like to suggest 2 tricks.
1. I am printing usually with raft. Flex was not able to stick on blue painters tape, thats why I am printing raft from any normal PLA I have, and then change PLA by FLEX, and it works really great.
2. Beware of touching FLEX by your hands. I had a problem, that feeding stops randomly. I had found, that this is causing grease
from my hands o filament. I had washed out Filament with degreaser (any dishes degreaser), and this feeding problem has gone.