Polymaker HT-PLA vs HT-PLA-GF: High-Temperature PLA Tested!

Would like you to check out the Qidi Plus4 hotend series I have over on my channel. Ceramic heatbreaks subject to cracking.
Hillbilly Engineer

What is your opinion on suitability for precision load bearing parts, such as gears and other precision fit functional parts? What materials have the most temperature resistance and outdoor exposure(intense direct sunlight water etc) tolerance. Thanks in advance.❤👍

Advances like this is why I keep a low inventory of filament. Looks like I have something to stock up on.

Literally the gold standard for reviewing filaments!

This stuff seems like magic and awesome testing procedures! What is with them speccing it for "printing up to 300mm/s" though? What sort of metric is that? You're saying I can't print it at 10x that speed at a lower layer height or narrower extrusion width? Does this material change as it approaches the speed of light?! 😂

Interesting results... with seeing the stringing on the glass fiber parts I will say that it appears that further drying is worth considering when using the material to see if the stringing can be less if not completely gone from the prints. I know it's probably more than they might recommend for drying. I say this because I have yet to see a drying box that can properly dry filament the same as a laboratory blast oven can. I'm pretty sure that is what they used to come up with the drying recommendations... I only wanted to bring this up because to me the stringing does give an indication of moisture... in my opinion anyway... I just think it would be interesting to see if once it was dry enough to have no stringing... if that would also give different test results... anyways, great video thanks for sharing the tests... I do appreciate you... you always give great information... I buy a lot of my filament relative to what I see from your tests... thank you...

We bought 4 rolls of this, thanks to your review to solidify the validity of their claims.

I print accessories that go inside of planes... it can get REALLY hot inside of a plane all buttoned up on the tarmac, so I've been doing ABS-GF because some of them are large and I needed protection against warping.

Maybe this is a solid alternative. Pricing and print success will make all the difference to me.

I'l love to see a comparison between HT-PLA, HT-PLA-GF and Bambu ABS-GF

Is there a version of this video available in English?

Looks like pet-cf is still my go-to for high temp engineering.

Very cool to see this though. I wonder if they some how get the pla crystalline structure to anneal as it cools down from coming out of the nozzle.

Great work, as always.

Have you thought about doing a video on voxel pla+?

It looks like layer adhesion becomes a lot worse than regular PLA with both.
Is that correct?

Do you know How much the HT-PLA GF is releasing glass particles? Is it safe to handle it. I had issues with CF where it was releasing small particles and I had to apply coating on all parts.

Do you think this material is suitable for outdoor use where it will be subjected to the elements?

Any review where the material is supplied by the vendor is inherently biased. Just like the temperature resistance tests in this video.

Ingeo and Polymaker are gold standards for filament; no surprises in this video. Thanks for the good content.

Very informative new to 3D printing and trying to take in as much information as possible 🖖🖖

Bro your color-coded chart colors are yellow, blue, yellowish-orange, and yellow…

PLA temperature is one thing, but UV resistance is at least as important! Wish you’d tested this as well, other than that great job

Excellent reviews and tests. This is very helpful information.

As always thank you for the extremely thorough review! We released HT-PLA at the beginning of summer so you makers can create some cool prints to withstand some heat 🔥😎

Thank you for the detailed video.

I’ve been annealing small PLA parts by printing them on a 90C bed before covering them up and leaving it at 90C for an hour, and I’m getting no warping and only a tiny bit of sagging, I do recommend. No part cooling either.

Other US sourced comparable filaments to Polymaker's new HT-PLA and HT-PLA-GF (off the top of my head) are ProtoPasta's HTPLA and HTPLA-CF (both Ingeo 3D850 based) and 3D-Fuel's Tough Pro PLA+ (Ingeo 3D870 based). I don't think 3D-Fuel has either a glass filled or a carbon filled variant of their Tough Pro PLA+. Both Ingeo 3D850 and 3D870 (as a raw resin) are designed to be both heat stable off the printer and increased heat resistance after annealing. I have yet to find out what resin Polymaker starts with (other Ingeo which is the resin family name, not the specific resin grade). I don't know (and don't expect any of them to tell us) what each company's "11 herbs and spices" are that they modify the base resin with. But it would be interesting to see a showdown between those three manufacturers (five filaments). An advantage that Polymaker's GF filament over ProtoPasta's CF filament is coloring. It's tough to get any color to show well past all the black chopped carbon fiber in a CF filament, but glass is clear so would take colors much better. Hopefully Polymaker will add colors to their HT-PLA-GF over time.

I'm wondering what chemical they blended in to achieve this?
Also, I compared the TDS's with my trusty dusty ASA and I was disappointed. It only wins in stiffness and in certain categories of heat tolerance, not all. Looks like I'm sticking with ASA.

Best filament review channel period! Loved this!

Thanks for the interesting and informative video. From the results, I don’t see this as being a specialist “engineering” material. And it isn’t priced like one.
It is PLA, for PLA buyers, but better - when “better” means not destroyed by boiling-water-temperature. But “better” in other properties/features might still lead to a different PLA, whether Plus, Pro, Matte, Rapid or whatever.
There is another option. And that’s a good thing.

Having watched the Polymaker vid yesterday I waited to see what your vid would say about it in an unbiased manner. Great filament it looks like, I ordered some for a few projects.

Impressive and unexpected results for strength. Great innovation from Polymaker and hopefully we see some good competition.

Why not just use petg

Polymaker isn't the only company making an HTPLA product. I know Proto-pasta has made an HTPLA filament for a very long time, and its possible other companies have as well. I'd be curious to see a comparison between the various brands of HTPLA on the market.

Love your reviews. I do wish with reviews like this you'd at least verbally talk about how it compares to other refrence filiments. Like here mentioning (or showing) what temp regular PLA fails, how it compares to regular PLA in strength tests.

What is done or added to this to make it stronger? Is it still as safe as standard PLA? Will it biodegrade? Will plants absorb anything harmful to their fruit/seed as it breaks down? My clients/following focus on this kind of stuff. They want human safe, plant safe, pet safe, and environmental friendly (biodegradable). As long as this follows that, this could be a real winner! The vast majority of my prints end up in greenhouses, or out in the elements. We don't need the prints to last forever, but they need to stay solid for a minimum of 3 years. By this time, the plants have matured enough to need a new home anyways, and this is the time people scrap the old, and get new. Would be amazing to be able to scrap the old stuff in a compost pile.

This filament pretty much eliminated the need for PETG. The only property that petg carries that this HT-PLA doesn't is chemical resistance which petg is great for.

Thanks Igor, great work letting us know how this performs. Some companies will make false claims about their products or have some very weird specific situations it works in. In this case you did a good job of using your scientific methods to validate Polymaker's claims. Thank you for the honest review and thank you to Polymaker for being a company with integrity.

Did I see that correctly? the HT PLA GF that was not annealed didn't distort in the oven until it hit 125c?

Но версия со стекловолокном врятли сгодится для пищевых нужд.

Will this decompose under constant exposure to Heat, Humidity, ana UV light? I mean in time scale of 3-10 years. All of printed PLA has been Thanosed to dust when I touch it after like 3-4 years.

no one cares if it's PLA just that we can print it without all the thermal/heated gymnastics you need for everything else and it doesn't turn into a blob on the first summer day

Wonder how this wound handle being used for printer mods. Cause where I have my printer, it's really not set up to print stuff like asa or abs, and some of the stuff I want to do to my k1 max needs to be printed in that kind of filament just to handle the temps. Wonder if this could be a sub for it instead 🤔

😅 Sometimes watching this channel, it feels like the old CNCKitchen retired and this channel is growing into that spot. His comparisons have been more excessive sometimes, but I think he is not doing them as often anymore.

So why anneal id it becomes weaker?

Fresh spools are very different in humidity from brand to brand!

Suggestion: Print a spool in ht-pla and see if it can survive drying various types of filament. If it can, I will totally use ht-pla for spools

BEFORE watching the video I call out their marketing BS. Give me thze industry standard of HDT @ 1.80 MPa / 0.45 MPa and you will see how their claim is nonsense.

I'm not sure I understand this testing. Did you anneal it?

Please do a review on Polymaker Fiberon PA612-CF! It seems like a great middle ground for nylon and entry level price. Maybe compare it to their PA6-cf and PA12-cf?

I'm looking forward to your food testing! If I can print utensils or bowls and cups, that would be so great! Thank you for the video!

you should test this against Protopasta HT-PLA.. I would like to see who has the better HT

Have you tried printing at higer temps to see if it helps the weak layer adhesion any?