I'm pretty sure that even the manufacturer of this filament does not have this much data of their product! Thanks for your awesome work!
@Polymaker Жыл бұрын
True
@hot_wheelz2 ай бұрын
@@Polymaker😮
@cj5376 Жыл бұрын
This channel is the best filament review and testing I've seen. Deserves much more traffic. 👏
@szekerespista3758 Жыл бұрын
Agree!
@aviatorbja Жыл бұрын
Agree. This is highly objective data here.
@0x80O0oOverfl0w Жыл бұрын
Definitely, one of the few KZfaqr's that puts effort into legit testing.
@hot_wheelz2 ай бұрын
This channel and CNC Kitchen really stand alone as absolute authorities in this area.
@runklestiltskin_2407 Жыл бұрын
Still the best channel for filament property information!
@MyTechFun Жыл бұрын
Thank you!
@PowerScissor Жыл бұрын
I can never get enough temperature tests...and this video doesn't disappoint!
@fail_fast Жыл бұрын
This is such an absurd amount of work. I've had a video like this in the making for almost a year....Thank you so much for posting and sharing the data. It's amazing to see how much the material properties of different nylon filaments can vary.
@MyTechFun Жыл бұрын
One more work I will have with these filaments, because I got several suggestions, that annealing will improve mechanical properties, especially less creeping.
@fail_fast Жыл бұрын
@@MyTechFun I would love to see that!
@firebloomstudios14010 ай бұрын
Agree, you found a really good niche. Insane work. Will recommend your channel for all Material tests. Keep up the good work!
@benjaminmarquis6250 Жыл бұрын
I have been printing in pa-6cf for the last two months or so. I have been absolutely thrilled with it's performance. I think the annealing process helps greatly with layer adhesion and tensile strength. If you try annealing it I think you'll be impressed.
@freekshow0011 Жыл бұрын
A great idea for a follow up video would be doing the same test but anneal the parts and then compare results
@JulienStoeffler Жыл бұрын
Do you have any resource you can recommend to learn the annealing process for PA6-CF?
@benjaminmarquis6250 Жыл бұрын
@@JulienStoeffler I just toss it in the oven at 190F for 8 hours after it cools down on the print bed. It made a piece that was strong enough to hold up four corners of my backyard gazebo. Make sure you let it cool down for an hour after you take it out of the oven.
@JulienStoeffler Жыл бұрын
@@benjaminmarquis6250 Thank you, I'll try that! Quick question if you don't mind: do the part deform at all? I have some projects that have tight dimensional tolerances and I'm afraid of annealing because of that.
@benjaminmarquis6250 Жыл бұрын
@@JulienStoeffler it will deform some. I've seen experiments that show +/- .5% deformation in the x y and z axis sometimes in different directions at the same time. One thing I have heard of but have not tried is submerging the part in sand to hold the dimensions while it is baked.
@legoboy-ox2kx8 ай бұрын
Thanks for doing such thorough testing on these materials! The PA-6 fibrous materials are amazing for functional parts!
@colinfielder6695 Жыл бұрын
Thank you for taking the time to do all the testing you do saving us time and choices for future projects
@ThingsYouMightLike Жыл бұрын
This was hugely helpful. Thank you for all this work. PA6-CF is going to be a great substrate for some of our products.
@K1GBD Жыл бұрын
This is the most thorough test I think I've ever seen in my life.
@justgriff1295 Жыл бұрын
Excellent tests! I thought PA 12 was more heat resistant. Glad I watched this.
@stevenwinegar93555 ай бұрын
Amazing information. The manufacturer should definitely be paying you for this.
@MyTechFun5 ай бұрын
I am glad, that you liked it. Nice suggestion for the payment, but I would like to stay independent. Sample products are enough to me.
@marklandsaat3696 Жыл бұрын
Great video, really like the testing of less common filaments. Thanks for all the hard work
@K8Stuff11 ай бұрын
Now you also got PA612-CF to test. 😅
@michaelb7071 Жыл бұрын
Great info, thanks for testing and sharing! Gives me confidence to continue using Polymide PA6-CF. Regarding the timing belts: You cannot print those kind of parts with CF-Nylons. Nylon without fibers could work, but is still very stiff. Maybe usable with large pulleys, certainly not those tiny ones as they are found on printers for example.
@backgammonbacon Жыл бұрын
When printing without fan you need to move the printhead away from the parts to let them cool down. I always print a cylinder in the corner of the bed thats the same height as the part and thats normally good enough for even small parts. Increasing the cooling just makes the part weaker.
@bloogaming8827 Жыл бұрын
That’s a super neat tip about adding a cylinder
@andreaspoulsen8017 Жыл бұрын
Thank you for the test, really well done. One note, maybe have PLA as a comparison.
@MyTechFun Жыл бұрын
Similar PLA test comming soon (PLA vs PLA strongman) with same test objects.
@AndrzejBrudniak Жыл бұрын
I am really impressed how good the bed adhesion is with Polymaker. I've also used satin sheet with this gluestick, and PA12 and PA6 warped like crazy from the bed. With Magigoo PA it was much better but finally with Prusa PA Sheet it is just fantastic. Congratulations to Polymaker to make such easy to print filaments
@MyTechFun Жыл бұрын
I agree, with this testing I almost forgot how problematic is the warping of the regular nylon..
@AndrzejBrudniak Жыл бұрын
@@MyTechFun Also it is interesting that the bed is 50°C, unlike the one i used that you have to print between 90-110°C. I thought that it is because of higher glass transition temperature and that those with 50 degress would be worse in high temperatures. You prove me wrong with 200°C and nearly no warp 😅
@joehimes9898 Жыл бұрын
Great job. It has been fun watching your progress over time. Definitely better than anything I could do. Learn so much.
@goawaybaizuo Жыл бұрын
I just found you. I've been looking at printing CF nylon. I really appreciate your testing methodology.
@MyTechFun Жыл бұрын
I still must test the annealing with these filaments, it could be very important.. soon...
@mrnukeduster6 ай бұрын
Amazingly thorough tests. I wish you had printed them in higher temperature printers with enclosures, and printed with a higher nozzle pressure. Those have been key to my findings of ultimate strength. I am aware that they state to use a lower print bed, but I have achieved highest tensile strength and impact strength by printing in 60 degree enclosure with 90 degree print bed, 300c for PA6, 275c for PA12 or PA612. I do not use CoPA. I have printed approximately 100kg of Polyamides over the last few years with these settings, making hard use items.
@santiagoblandon3022 Жыл бұрын
Amazing video! thank you so much for doing all this work. The new bending test is great in my opinion. ISO and ANSI should copy it for testing polymers haha
@marcus3d Жыл бұрын
19:56 this highlights a problem with your testing method. The back of the hammer is further away from the pivot point than the front, so there can be lots of friction if the sample didn't break off completely. This friction has nothing to do with impact strength, so will distort the results, as it did in the PA6-CF test here. To fix this I'd suggest to turn the hammer around, with the pointy end forward, and angle the head down at a 60-80 degree angle. This way there's only 1 contact point and no possibility of further friction.
@garyhsk86 ай бұрын
Very very helpful data. Thankyou for taking the time to make this incredibly detailed video
@berntsteinmetz85648 ай бұрын
Thanks ! It really is Great to see real engineers at work.
@coachsmith508 ай бұрын
Wonderful video! Thank you for your attention to detail and time to go through each test and the results. This video has been the best resource for understanding the actual performance difference between these filaments.
@christiansantiago3007 Жыл бұрын
Been using Esun PA-CF and it has made some good strong parts. Interested in trying polymaker glass filled nylon for something. Admittedly i have not annealed anything. Im scared of warping. Great video!
@garyhsk86 ай бұрын
Saved me some $$$ on filaments to test. Thankyou!
@MyTechFun6 ай бұрын
Thank you, I am glad that you liked the video. I hope I will get soon their newest PA612-CF too for the testing.
@spongecounter Жыл бұрын
Awesome video, Igor. Thank you for the updated spreadsheet on the Patreon page, very useful. With respect to the new bending test, I like it. I would like to see a longer stabilization time on the higher loads so we can see where it levels off. That would add even more effort to your tests so I understand why you might not want to do that. With respect to the torque test, I find the method adequate for me. I don't use printed bolts often, though I have done a few and 6 mm diameter is the smallest I go. So the test part diameter you use is a close enough approximation of the max torque I can apply. That is useful to know. With respect to the screw creep torque test, I do see creep in my bolts on my functional parts, so this test is really educational and useful. How many perimeters, and at what line width, do you have around the hole? I am sure the hole wall thickness will affect the results. I try to have solid material under the washer or bolt head. Many thanks for your work Igor. Tom
@MyTechFun Жыл бұрын
Thank you Tom for supporting and for suggestions. Soon same testing with some PLA filaments (including new bending test, you will see soon, no need to wait more than 1 min)
@SplitPhotography Жыл бұрын
Nice and consistent testing of interesting materials. Like it! 👌😁💯
@Thor_Asgard_ Жыл бұрын
Very good effort. If you wouldve used a heated chamber, your results wouldve improved alot when it comes to layer adhesion.
@jessejuliano8056 Жыл бұрын
Dude I looooove your videos so much you literally have so much information that I am seeking!
@MyTechFun Жыл бұрын
Thank you!
@MuziV4 Жыл бұрын
Wow! Thank you so for much for your effort, this video is just perfect
@marklandsaat3696 Жыл бұрын
Thanks!
@MyTechFun Жыл бұрын
Thank You Mark, I am glad that you like my work.
@Jarlefinken Жыл бұрын
Very interesting video. Thank you very much for sharing the comprehensive and scientific testing.
@pk63361587 ай бұрын
I like the new bending test but knowing the max load it can take is good as well, If we can have both that would be good. Over all, you do whats best.
@MrElbowgrease Жыл бұрын
Excellent in-depth review, I'm really impressed with the results from these filaments.The PA6-GF and PA6-CF were both outstanding performers. I'm going to give PA6-GF a try for its excellent price / performance ratio. Don't think I would will use PA12-CF in the near term given its price is very steep and the PA6 filaments were really stout performers.
@MyTechFun Жыл бұрын
Soon I will do another test with these filaments, because feedbacks says that strength is impruved with annealing. We will see soon..
@riba22337 ай бұрын
@@MyTechFun pozdrav, jeste li uspjeli možda testirati ove materijale nakon procesa žarenja (annealing, ako sam dobro preveo)? Puno hvala i imate izvrstan kanal, najbolji testovi koje sam vidio do sada!
@MyTechFun7 ай бұрын
@@riba2233 not yet, I am waiting for Polymaker PA612CF, and then I can do a deeper testing of this filament, including the annealing (pišem na engleskom da bi i ostali razumjeli, pozdrav)
@riba22337 ай бұрын
@@MyTechFun Great, thank you a lot :) (puno hvala i jos jednom svaka cast na detaljnom testiranju!)
@chatroux399 Жыл бұрын
excellent video, now we need a comparison with prusa PA11 CF and fiberlogy CPE
@MyTechFun Жыл бұрын
I just recieved a spool of Prusament PA11-CF, video probably in 2-3 weeks.. Not sure about Fiberlogy.
@chatroux399 Жыл бұрын
Really good news for the prusa filament, the CPE is by far my favourite filament, ft isood safe, high temp, and easy to print. Thank you for your work 👍
@MyTechFun Жыл бұрын
@@chatroux399 Oh, yes, CPE HT, that test is in the progress. I am testing it exactly from the food safety aspect, since this filament can be boiled. I am waiting the bacterial test results from our partner university of Novi Sad and video will be finished. Only thing I don't like with CPE HT is weak layer adhesion on recommended printing temperatures.
@JulienStoeffler Жыл бұрын
@@MyTechFun Filamentum also has great technical filaments: CPE HG100, CPE CF, PC+ABS. They have a great tech support, and I've already talked to them about your channel :)
@chatroux399 Жыл бұрын
@@MyTechFun fantastic ! impatient to watch your video ! I only use it with my prusa with the prusa slicer profile and the layer adhesion is impressive
@TheBlackboro Жыл бұрын
This ist a really excellent Video with so much useful information, thank you very much for your work!!
@naasking10 ай бұрын
Also, data for annealed parts would be interesting. I've read that many carbon fiber filaments don't suffer from significant shrinkage when annealed, but that it can significantly improve creep.
@archaeo Жыл бұрын
Fantastic review of the PolyMaker PA filaments - absolute gold! I would love to know the speed, retraction and bridge flow settings used in those tests - I have been printing with PolyMaker PA6-CF for some time and getting clean bridges and smooth surfaces (on dried filament on a Voron) has not been easy - but your temperature towers looked very clean first go.
@MyTechFun Жыл бұрын
Check those default settings in PrusaSlicer. Only as mentioned in the video, I reduced the part cooling.
@LoupozE309 ай бұрын
Which settings excactly?@@MyTechFun
@0x80O0oOverfl0w Жыл бұрын
Great write up and video. I saw that Polymaker has a new PA612-CF filament in "beta" testing, curious how it stacks up against their current lineup.
@MyTechFun Жыл бұрын
Thx for informing me, after holidays I will contact them and ask if they want to send it for the testing.
@fluxcapacitorАй бұрын
@@MyTechFun Did they answer since then and were you able to test PolyMide PA612-CF?
@MyTechFunАй бұрын
@fluxcapacitor they told me they will send a spool when it will go out from beta phase. Maybe they need a reminder(?)
@fluxcapacitorАй бұрын
@@MyTechFun I think so because the rolls have been available on various markets for a moment! Notably at 3DJake in the EU.
@aliancemd4 ай бұрын
Seeing that oven test, makes me curious which one transfers heat the best(Carbon should do good but it is usually not contiguous and peppered randomly in the material) - use-case: a battery case that assists in removing internal heat to the outside.
@3dPrintingMillennial Жыл бұрын
Not finished with the video yet but you can't use the timing belt right off the plate. Need to soak it in water overnight first
@MyTechFun Жыл бұрын
If I soak it, I know it will be flexible and soft. But after it dries again, the same problem is back..
@3dPrintingMillennial Жыл бұрын
@@MyTechFun it shouldn't dry out unless you're using it in a dessicating environment (at least from what I've found). Thank you for the wonderful experiments! Love the channel.
@gitss7367 Жыл бұрын
Thanks for such useful information.
@donr62 Жыл бұрын
Brilliant video. Very informative thank you.
@Richard.Andersson Жыл бұрын
The timing belts in nylon needs to be humidified before bending. Dry nylon is very brittle, but after some time in ambient air it will become much less brittle. Think if regular zip-ties, new from the bag they can sometimes be brittle, but after only a few days in the opened bag the zip-ties are much stronger and will not break.
@bradleysr3 ай бұрын
Great test, but don't expect me to eat your home made meals.
@MrBiggs-wu2kfАй бұрын
Thank you for this video.
@naasking10 ай бұрын
Another excellent video! I mostly stick with eSun filaments and have enjoyed your videos on those. I have a few spools of their ePA-CF which I was planning to use for some projects, but no one's done any testing on these from what I can see, so that would be my suggestion for a future video (along with their ePA12-CF, and ePAHT-CF for good comparison with the Polymaker filaments).
@VorpalForceField Жыл бұрын
Awesome content ..!! As always you are extremely thorough ... Thank You for sharing.. Cheers :)
@CantilEdgeАй бұрын
Polymaker just made a new line called fiberon. They are the same materials just now called "fiberon" which are enchanced. Would you be doing a new test on these?
@fakel87 Жыл бұрын
Thank you for your tests!
@marsma18 Жыл бұрын
I wonder if you cannot extrude more filament or just have bigger line on line cross section. You test probes looks like underextruded on the curves. There is lack of filament in many cases. Like the way you test it but can you try to add more filament to it ?
@MyTechFun Жыл бұрын
I already tested flow rate effect to layer adhesion. Not sure how they should look like exactly, but my esteps are correct.
@VentusSolus Жыл бұрын
This is so well done! Thank you!
@burakozney4 ай бұрын
A very nice review, a very small question, is the glue you use any kind of glue? Is the content different?
@brynparrott7361 Жыл бұрын
The tests are very useful, however one test for nylon/PA is missing. Nylon is often used to make washers and bushes, and that is because it has slippery surface- self lubricating. I can imagine a test which has the object under test as a bush, and a bolt is fastened through the bush and a metal lever is sandwiched between, and bolt is tightened to a specified torque. then the torque required to move the lever is measured. a lower value is better. Take the test further to move the lever through iterations of movement and see how much wear occurs on the object under test.
@kfirbehar6720 Жыл бұрын
Polymaker claim that best performance for these filaments is achieved only after annealing. I wonder if the results would have changed if the parts were annealed (I'm particularly interested in the CO-PA creep test)
@MyTechFun Жыл бұрын
Annealing test is in my to-do list too.
@alycapo3391 Жыл бұрын
bravo, also are we ad free moving forwards? either way congratulations! so PC is the overall best filament out there?
@MyTechFun Жыл бұрын
Yes, from Polymaker range PC max is my favorite. Then their odorless ABS.
@TheEtbetween8 ай бұрын
Excellent job! Thanks a million
@PurchenZuPoden Жыл бұрын
Thanks for this great review!
@GekoPrime Жыл бұрын
For the timing belt, CoPA will be much more flexible after hydrating and annealing in boiling water for an hour
@MyTechFun Жыл бұрын
But when it dries, it would again become brittle.
@GekoPrime Жыл бұрын
That’s a fair point. Maybe you mentioned this, but I wasn’t clear from the video if you tested the timing belt in its dry state immediately after printing or if it had a few days to reach equilibrium with the ambient environment. In my own tests with CoPA the material properties were very different in dry vs wet states
@GekoPrime Жыл бұрын
Maybe you could do a video examining how material properties can change after printing? PA is sensitive to moisture Polymaker recommends annealing their PA and PC products There are a few annealable PLAs on the market with impressive impact and heat deflection claims, for example PLA PRO from 3dfuel and Volcano from formfutura
@realPinkfong3 ай бұрын
What is the best for gun/ frames?
@CarModsGarage Жыл бұрын
great video!
@TurKFXI2 ай бұрын
Are you planning to test PC-GF?
@j.g545 Жыл бұрын
i would be intrested to see comparison between polymaker pc-max prusa pcblend, or any other pcblends
@JulienStoeffler Жыл бұрын
If you support him on Patreon there's a spreadsheet that compares these 3 filaments side by side. If you don't want to support him, you can watch his videos. Polymax PC: kzfaq.info/get/bejne/qtOfiqyp0b6sd4E.html Polylite PC: kzfaq.info/get/bejne/frOIh8imzbnMkXU.html PC Blend: kzfaq.info/get/bejne/mJujltVmvtvclWg.html PC-CF: kzfaq.info/get/bejne/qaebfcWKs7anoKM.html
@Pitman5566 ай бұрын
Where's paht-cf come in?
@DaGaitaHBas Жыл бұрын
Very nice for the vídeo you the best brother...
@runklestiltskin_2407 Жыл бұрын
I am a bit surprised that the PA12 creeped worse than the PA6, I have heard different stories
@MyTechFun Жыл бұрын
I don't believe to stories, that's why I like to test things. And more than one test showed similar results.
@runklestiltskin_2407 Жыл бұрын
@@MyTechFun I have no experience with the Polamide lineup, I always used ePA-CF from esun, so I can't say anything against your results.
@Sillysillylittleman Жыл бұрын
@@runklestiltskin_2407 I am thinking about EPA cf from esun can you tell me more about it like strength?, surface quality? ect. I think the price of the esun epa cf is reasonable, there are other filaments that I would like to use but are unavailable in Australia or just really expensive.
@runklestiltskin_2407 Жыл бұрын
@@Sillysillylittleman Hi, I have no scientific data. I like the ePA-CF from esun, it has Nylon typical layer adhesion and is way stiffer then Nylon without CF. I use the material for printer parts, such as berd-air nozzles and rc parts like spoilers, it creeps less than Extrudr's PLA CF crap, that I used before and less thea resin parts printed with Syraja tech blue. It needs to be dried out of the box, though, so an ofen 80C (be careful with pizza ofens) or a dehydrator 70C are a must. It needs an enclosure, if you want to print big parts, bigger than a benchy, It needs a hot bed 100C and above and an all metal hotend. It's abrasive, so a ruby nozzle, or hardened nozzle is also a must have. I print this material on sanded FR4 that's the fire retardant version of G10 (fibre glass in resin) it's possible to get similar adhesion on PEI smooth.
@dniokk9562 Жыл бұрын
Please show us your solution for the y axis motor cooling on S1 Pro when you are done.
@MyTechFun Жыл бұрын
Ok. Soon, after I decide how to power it. Or from led power or exterrnal..
@sovahc Жыл бұрын
Thank you, Engineer 😌
@PosParts28 күн бұрын
This is a wonderful video and very informative. After using Taulman Nylon 645 for years, they went out of business and I’ve been hunting a replacement. CoPA seems like the winner for me here due to its flexibility. Have you tested any chemical resistance on these filaments?
@MyTechFun28 күн бұрын
Chemical resistance - not yet. But over all (claims by manufacturers), nylon is one of the most resistive filament. After this PETG. But I don't have my own tests for this.
@56Victorine5 ай бұрын
fansastic, great job!
@XY-nc7nc Жыл бұрын
should also compare with the PPACF
@josiahong5177 Жыл бұрын
Can you test all of polymakers pc filament? Includes pc pbt and pc abs and pc fr
@MyTechFun Жыл бұрын
I have some PC ABS here, but I don't have heated enclosure. If those 45-50°C will be enough, there will be a video and testing..
@0x80O0oOverfl0w Жыл бұрын
Could you give a walk through of your PrusaSlicer settings for these filaments? I'm not having any luck with PA6-CF or PA6-GF, they both come out looking like an over extruded mess.... Maybe I just need to dry them, but I've never had this much trouble with new filament before. The PA12 prints fine and so does the PA612.
@mfr5725 Жыл бұрын
thank you, great info!
@RandalTurnerMKULTRA Жыл бұрын
Which of these would you use for printing small drone propellers 0.6mm blade tip with base around 1.2mm I was planning on the PA6-gf but due to the small thin blade I am wondering if using PA6 or PA12 cf would be better? Blade are under Constant flexing pressure when used.
@MyTechFun Жыл бұрын
PA6 CF would be my choice
@calmarcalmar8 ай бұрын
thanks a lot
@melangkoh4184 Жыл бұрын
hello Igor, you have a lot of printing hours on your back, do you think it has any real benefits of changing the heatblock and the partfan on the Ender 3s1, if you never print faster than 70-80mm/s?
@Remy21289 Жыл бұрын
Hello. What size nozzle for pa6 cf?
@MyTechFun Жыл бұрын
I used 0,4mm , no problems so far
@shoegum736215 күн бұрын
Can you compare these results to PA612-CF? Or have you tried PA612-CF yet?
@MyTechFun15 күн бұрын
I lost my contact from Polymaker (Nick from their livestreams). Nobody other reply to me from them so far. I will try to ask in one of their next livestreams.
@f1hotrod527 Жыл бұрын
Who makes a good filament dryer available in USA?
@4thhorseman390Ай бұрын
Nothing against this channel but it's annoying that Polymaker flooded the web and YT with content about only their MODIFIED versions of Nylon. In many, perhaps most applications plain nylon PA6 or PA12 is superior. Sure sometimes the additives help but most of us printing Nylon want the strongest parts we can make, that's NOT possible with this Polymaker stuff. That said I still really like this channel.
@Crappy.Consumer.Reports2 күн бұрын
Shots fired
@lolzlarkin3059 Жыл бұрын
Does it make any difference to strength on the small cross section areas if instead of increasing fan speed, you increase layer time with no fan?
@MyTechFun Жыл бұрын
The effect to layer adhesion is similar
@lolzlarkin3059 Жыл бұрын
@@MyTechFun interesting. I never seen anyone test. Similarly I have heard a few people saying fast printing is always weaker, but I don't think I have seen anyone test it.
@JulienStoeffler Жыл бұрын
@@lolzlarkin3059 Not an expert, but part cooling and slowing down print speed both reduce the temperature that the filament has when the next layer is applied. This reduce how well the two layers stick to another. I imagine part cooling will have a stronger effect though, because it also cools the current layer, so it has less time to stick to the bottom one. But you're basically trying to maximise the temperature of the filament until you get undesirable deformation. I think it would be worth experiencing without fan and with reducing the print speed only, or making a pause between layer (with cura's "minimum layer time' for exampel)
@SplitPhotography Жыл бұрын
Have you done comparison on PC vs PA (gf/cf) ?
@MyTechFun Жыл бұрын
Yes, in separate video, but most of the results are comparable.
@SplitPhotography Жыл бұрын
@@MyTechFun thanks!
@AlJay0032 Жыл бұрын
The way things break show your printing temperature was not high enough for optimal layer adhesion. With higher printing temperatures you would get even stronger parts.
@conorstewart2214 Жыл бұрын
You should not test the nylon belts right off the bed, leave them to absorb moisture first or soak them in water to speed it up. As nylon absorbs moisture it becomes much more flexible. You are testing it in its driest state which is not really indicative of it in use unless you use it in a very dry environment.
@endregyorfi480711 ай бұрын
the pa6 component is drastically weakened by moisture. (hygromechanik)