Siraya Tech Fibreheart ABS-GF 3D Printer Filament, High-Temp, Black, 1kg

I can’t say enough good things about siraya tech’s filament. This ABS-GF has printed excellent for me with 0.4mm nozzle using the Orca Slicer profile that Siraya tech provides on their website for my Qidi plus 4. Very first prints came out perfect. I have also used their CF-PET with great results but the ABS is a more affordable option with high temperature resistance and great layer adhesion and strength. I have not yet experienced any warping or stringing or anything really. Even longer bridges and overhangs come out great as you can see from my photos printed without supports. I have left this abs-gf out in the open in my 40% humidified home for a few weeks and I have still not had issues with moisture. My PETG on the other hand would be extremely stringy by now. The ABS-GF does have a bit of ABS smell for sure but it’s not as strong as some others i’ve tried in the past. This might be my new go-to filament instead of PLA. The surface is slightly abrasive, not quite as much as the PET-CF but the parts look almost identical. I noticed more skin irritation with the PET-CF. This ABS-GF does not seem to bother my skin at all really unless i’m cutting or sanding on it. The ABS GF is still quite flexible like regular ABS but a little less, since it’s only 10% glass but that also means better layer adhesion and less abrasive surfaces. I think the flexibility is close to PLA, but the filament itself is still pretty brittle. The PET-CF is a LOT more stiff and also more brittle but INCREDIBLY strong. The CF-PET, for example, I had a thing piece of support material maybe one or two walls thick, and when trying to bend it, it was incredibly strong. When it finally broke it exploded and have my finger a little cut. I hope to see more colors come out in the future. I would love an ABS-GF in Purple.

This gf black abs is very strong and with a print chamber I have had almost no issues with bed or layer adhesion and VERY minimal warping with taking no precautions in my prints. It is a little bit inconsistent with retractions, but no significant stringing or blobbing. I very much like this filament. It comes in a aluminized plastic package that is resealable to keep it dry. I have printed it with and without drying first and had very minimal difference between the two. The cardboard spool it comes on has marking to tell you about how much weight is left which is very nice. I have bought several spools of it so far. It does make a rough finish from the fiber glass and can make you a bit itchy when youre messing with it, though it goes away pretty quickly. If you have very soft or sensitive skin I would recommend some kind of protection. Printing on a textured PEI bed and have never had adhesion issues printing with bed temp at 100°C and nozzle temp of 255°C, i've gone to 120mm/s with no issues, as soon as bed gets below about 50°C the print detaches from the bed on its own. So once the bed is cool, it is basically just sitting on top of the bed.

This was my first run with Siraya Tech’s ABS‑GF (glass‑fiber reinforced ABS), and I approached it the same way I did with ASA: prep first, print second. I dried the filament overnight, then spent time dialing in my slicer profile. That effort was worth it—the prints came out strong and clean. You have to print in an enclosure to make this work. Adhesion was solid using a PEI sheet with a light application of bed adhesive, and release was easy once cooled. The filament flows consistently, and with proper calibration, it produces parts with excellent dimensional accuracy. For testing, I printed structural rocket components, including couplers and centering rings. The results were impressive: the glass‑fiber reinforcement adds noticeable stiffness, making it well‑suited for load‑bearing parts in high‑power rocketry. The finish is black but not glossy, more of a matte look with a subtle texture from the fibers. I also noticed the odor during printing was less than the ASA I’ve used, which made the overall experience more pleasant. Bottom line: With proper prep, Siraya Tech ABS‑GF delivers strong, reliable prints that excel in structural applications. Great choice for hobbyists who need durability beyond PLA and PETG, especially for rocket parts.

I create firearm products using ABS-GF filament, primarily Bambu ABS-GF, due to its impressive strength and durability. In product testing, I’ve even run parts over with a car, and they show little to no compromise. Compared to PETG-CF, ABS-GF offers significantly greater strength. Before anyone attributes this to print settings or machine quality, let me clarify: my Ender 3 days are long behind me. I now operate a Bambu X1 Carbon with settings meticulously optimized for production. Additionally, I perform detailed tuning for all filaments before using them, whether for commercial or personal projects. When Bambu ABS-GF was out of stock, I tried Siraya Tech's ABS-GF filament in black as an alternative. While the print quality is comparable to Bambu's, the strength is disappointing. Parts printed with Siraya Tech filament snap with minimal effort—almost like a dry twig. In contrast, Bambu's filament takes significant force to break, often requiring a real struggle by hand. This weakness is also apparent during automated material switching (AMS), where Siraya Tech’s filament snaps whereas Bambu’s filament has never snapped. If returns were an option, I wouldn’t hesitate. For anyone seeking a filament with robust shear strength, this product isn’t for you. If the shoe were on the other foot, I would leave Bambu labs the same review. However, this stuff is very weak. I expect my prints to be both visually appealing and exceptionally strong, but unfortunately, Siraya Tech's ABS-GF fails to meet the mark.

Ran this ABS-GF on my Bambu Lab P1S and it’s been solid from the start. Extrudes clean with no hiccups, and prints come out consistent every time. The strength is noticeable compared to standard ABS—great for parts that actually need to hold up. Surface finish is clean, layers bond well, and I didn’t have to fight it to get good results. If you’re looking for a durable, high-quality filament that just works, this is it.

I am running this on a Qidi pro 1 with a heated chamber and this stuff just flies. I am using Qidi's abs-gf profile with a .4mm nozzle. It is very accurate in terms of printing, with almost perfect fitups to mechanical pieces with hardly any post processing. At the time of the review it is $28 and for that price the quality and results are great. I am not seeing any warping on even very large flat prints. I suspect the glass and heated chamber are helping this. Layer lines even at .2mm are minor and require work to notice making for a possible consumer level part. It is fairly tough and impact resistant. I wouldn't say it stands up to a filled nylon, but for every day fixtures it will be a filament I keep around for it's speed to print and accuracy where for most little things it out preforms filament in this range. Printing at: .2mm layer height 260 C print head 100 C print bed 55 C chamber heater PEI Sheet with Glue Stick (NEEDED as release agent) See attached for speeds (default from profile)

Good brand that is known for abs like tough resin. I was hoping for the material to be much stiffer due to the GF, but I was disappointed with its mechanical properties. The manufacturer shows elongation at break of 3%, but the material seems to yield as opposed to snapping at once. FIlament printed extremely well with next to no stringing or oozing even with pushing temps (260*c). Good filament, but lacking in stiffness, and manufacturer doesn't disclose full TDS or GF fill %.

Great filament. I don't know anything about the company and this is the only of their filament's I've used, but I have been using it for 2 years. I sometimes wonder if Polymaker would be better, but I don't see how, and it is 80% of the price. I've had a lot of luck with this. Zero warping with the right bed plate setup. Looks awesome. I've been able to use the AMS. It is a little brittle, even when dry. It has broken in the PTFE tube before. I've never really tested the strength, however.

Prints great!

Lässt sich sehr gut drucken und hält was es verspricht. Ich nutze es für diverse Teile in meinen Vorons und auch für andere mechanisch beanspruchte Bauteile. Dazu sieht es sehr gut aus. Wichtig ist, wie bei jedem Filament, trocknen/trocken halten und ordentlich Kalibrieren. Von der Optik wollen wir erst gar nicht sprechen, die ist top 😍. Wenn das Filament im Angebot ist ZUGREIFEN.

Prints great, zero complaints with this filament!

Utilizzato su Bambu X1C con piatto BIQU CryoGrip Pro Glacier: nessuna deformazione e adesione impeccabile. La stampa è risultata stabile e precisa fin dal primo layer. Ho usato il profilo consigliato disponibile sul sito Siraya Tech, e ha funzionato alla perfezione. Consigliatissimo!

Prints really well with the settings provided