---
product_id: 628102076
title: "Siraya Tech Fibreheart PET-CF 3D Filament - Carbon Fiber Reinforced, High Strength & Rigidity, Easy Print, Dimensionally Stable, Aluminum Foil Sealed Bag - for Strong and Precise Parts (Black, 1kg)"
brand: "siraya tech"
price: "A$99"
currency: AUD
in_stock: true
reviews_count: 8
category: "Siraya Tech"
url: https://www.desertcart.com.au/products/628102076-siraya-tech-fibreheart-pet-cf-3d-filament-carbon-fiber-reinforced
store_origin: AU
region: Australia
---

# Prints flawlessly at 305°C nozzle temp Carbon fiber mesh for max rigidity Dimensional stability with <0.1mm accuracy Siraya Tech Fibreheart PET-CF 3D Filament - Carbon Fiber Reinforced, High Strength & Rigidity, Easy Print, Dimensionally Stable, Aluminum Foil Sealed Bag - for Strong and Precise Parts (Black, 1kg)

**Brand:** siraya tech
**Price:** A$99
**Availability:** ✅ In Stock

## Summary

> 🖤 Print Strong, Print Smart — The Carbon Fiber Revolution in 3D Filament

## Quick Answers

- **What is this?** Siraya Tech Fibreheart PET-CF 3D Filament - Carbon Fiber Reinforced, High Strength & Rigidity, Easy Print, Dimensionally Stable, Aluminum Foil Sealed Bag - for Strong and Precise Parts (Black, 1kg) by siraya tech
- **How much does it cost?** A$99 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.com.au](https://www.desertcart.com.au/products/628102076-siraya-tech-fibreheart-pet-cf-3d-filament-carbon-fiber-reinforced)

## Best For

- siraya tech enthusiasts

## Why This Product

- Trusted siraya tech brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Lightweight Yet Durable:** Ideal for functional prototypes and mechanical parts where strength-to-weight ratio is critical.
- • **Precision Perfect Prints:** Achieve razor-sharp dimensional accuracy (<0.1mm) with virtually zero warping or shrinkage.
- • **Sealed Freshness Guarantee:** Comes in an aluminum foil sealed bag to preserve filament quality and ensure consistent print results.
- • **Unmatched Strength & Rigidity:** Carbon fiber reinforcement delivers industry-leading toughness and stiffness for parts that outperform.
- • **Effortless High-Speed Printing:** Optimized for smooth extrusion at up to 80 mm/s with excellent layer adhesion and matte finish.

## Overview

Siraya Tech Fibreheart PET-CF is a premium carbon fiber reinforced PET filament engineered for professionals demanding high strength, rigidity, and precision. Its advanced fiber mesh structure ensures exceptional dimensional stability and minimal warping, enabling flawless prints with fine detail and a sleek matte finish. Designed for high-speed printing at elevated temperatures, this filament balances lightweight durability with industrial-grade performance, making it perfect for functional prototypes, mechanical assemblies, and custom parts. Packaged in an aluminum foil sealed bag, it arrives ready to print with consistent quality.

## Description

desertcart.com: Siraya Tech Fibreheart PET-CF 3D Filament - Carbon Fiber Reinforced, High Strength & Rigidity, Easy Print, Dimensionally Stable, Aluminum Foil Sealed Bag - for Strong and Precise Parts (Black, 1kg) : Industrial & Scientific

Review: A Game Changer... - I have no idea how they pulled it off, but this filament has some of the most insane layer adhesion I've ever seen. And it bonds so aggressively to the bed that it actually fused to my textured PEI plate at 80°C. I had to switch to smooth PEI + glue stick at 50°C just to tame the adhesion to a usable level—and it worked. The glass fiber reinforcement makes it incredibly tough, stabilizes the material, and virtually eliminates warping, so small prints come out great even without a heated chamber. Thanks to the glass fibers, the surface has this beautiful, elegant, non-reflective matte texture that completely masks layer lines—but only at 0.15 mm layer height (or finer). Any higher (like 0.20 mm and up), and the lines start to show. It prints flawlessly at 80 mm/s with a 305°C nozzle temperature. Unfortunately, that's a bit past the limit of the Bambu-style hotend I'm using, but so far it's holding up pretty well. I'm genuinely impressed. The parts come out right the first time with accuracy and uniformity that put ASA and ABS to shame. I did dry the filament for 24 hours, but honestly it seemed printable straight out of the package. The team at Siraya clearly aren't messing around—they know how to get things done. I've never consistently hit 0.1 mm dimensional accuracy with any other filament so effortlessly; it was always 0.4 mm or worse and required endless tweaking. But yeah, I did ruin a build plate because of the ridiculous adhesion—but it's totally my fault. I was completely unprepared for such a game-changing material. I can finally print thin parts with confidence, and I no longer have to make multiple copies just to get a perfect fitment.
Review: Amazingly strong and rigid filament, a bit tricky to print but worth the effort... - Print recommendations: Elegoo Centuri Carbon .6 nozzle @ 320 Bed 100 Keep the chamber as hot as possible .96flow Print under 100mm/sex No fans Ensure your extruder gears are tight! This stuff requires some grunt to unwind. This filament took some trial and error to get it to print reliably in my Elegoo Centuri Carbon. I started printing with a .4 nozzle at 300 degrees using one of the generic filament profiles. It worked for a few small prints but after that I had numerous failures. I switched to a .6 and still had issues. After tightening my extruder gears to about half it made all the difference. I've gotten through some larger prints using the settings above. Seems to be printing well with no adhesion issues using a PEI plate with glue stick. Note this stuff is insanely rigid. I had to add a riser to my printer and ensure the Bowden tube doesn't bend too far or it will snap and your print will pause/fail. I also had to weigh my dry box down because it was lifting it due to the filament being so rigid during unwinding. I was able to print straight from the package without drying. Did I mention this stuff is rigid? It's crazy rigid and strong. Overall this filament is amazing and seems so much stronger than PA6-CF but it is a little trickier to use. I really want to get back to a .4 nozzle and am hopping my changes will allow me to. I hope prices continue to come down as I would likely use this over my normal PA6-CF that's about 30% cheaper.

## Features

- Enhanced Performance & Reliability: Our PET-CF filament is a high-performance composite material, expertly blending Polyethylene Terephthalate (PET) with carbon fiber. PET-CF 3d filament maintains ease of printing, good interlayer adhesion, and good mechanical properties, and exhibits increased stiffness, improved dimensional stability, and significantly improved strength.
- Smart Fiber Reinforced Technology: Carbon fibers form a mesh skeleton structure within the PET matrix, greatly improving mechanical properties, heat resistance, and dimensional stability. Prints have no warpage thanks to internal stress release.
- Superior Dimensional Stability: PET's highly regular molecular chain structure and rigid benzene rings result in better mechanical properties and less deformation under long-term load compared to PA and PC materials.. Our PET-CF filament reduces warping and shrinkage, ensuring your prints maintain their precise dimensions and shapes, critical for functional parts and intricate designs.
- Lightweight Durability: Perfectly balancing durability with a lightweight profile, our PET-CF filament is tailor-made for applications where both strength and weight are key factors. Its low moisture absorption rate makes the part la It¡¯s an excellent material for producing robust yet lightweight components such as drone parts, mechanical assemblies, and sporting equipment.
- Versatile Applications: Whether you are a professional in need of reliable, high-strength components or a hobbyist working on detailed, functional projects, our PET-CF filament is versatile enough to meet a wide range of needs. Its ease of printing and mechanical properties make it suitable for everything from industrial prototypes to custom sporting goods.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B0CSPFL7MB |
| Best Sellers Rank | #1,722 in Industrial & Scientific ( See Top 100 in Industrial & Scientific ) #136 in 3D Printing Filament |
| Brand | Siraya Tech |
| Color | Pet-cf Black 1kg |
| Customer Reviews | 4.3 4.3 out of 5 stars (397) |
| Date First Available | January 23, 2024 |
| Ink Color | Black |
| Item Weight | 2.64 pounds |
| Item model number | 3003 |
| Manufacturer | Siraya Tech |
| Manufacturer Part Number | PET - CF |
| Material Type | Polyethylene Terephthalate |
| Number of Items | 1 |
| Product Dimensions | 8.27 x 2.95 x 8.27 inches |

## Product Details

- **Brand:** Siraya Tech
- **Color:** Pet-cf Black 1kg
- **Item Diameter:** 25 Centimeters
- **Item Weight:** 1.2 Kilograms
- **Material:** Polyethylene Terephthalate

## Images

![Siraya Tech Fibreheart PET-CF 3D Filament - Carbon Fiber Reinforced, High Strength & Rigidity, Easy Print, Dimensionally Stable, Aluminum Foil Sealed Bag - for Strong and Precise Parts (Black, 1kg) - Image 1](https://m.media-amazon.com/images/I/61BnW6PeBEL.jpg)
![Siraya Tech Fibreheart PET-CF 3D Filament - Carbon Fiber Reinforced, High Strength & Rigidity, Easy Print, Dimensionally Stable, Aluminum Foil Sealed Bag - for Strong and Precise Parts (Black, 1kg) - Image 2](https://m.media-amazon.com/images/I/61eEp-ECBNL.jpg)
![Siraya Tech Fibreheart PET-CF 3D Filament - Carbon Fiber Reinforced, High Strength & Rigidity, Easy Print, Dimensionally Stable, Aluminum Foil Sealed Bag - for Strong and Precise Parts (Black, 1kg) - Image 3](https://m.media-amazon.com/images/I/61sltLj0XxL.jpg)
![Siraya Tech Fibreheart PET-CF 3D Filament - Carbon Fiber Reinforced, High Strength & Rigidity, Easy Print, Dimensionally Stable, Aluminum Foil Sealed Bag - for Strong and Precise Parts (Black, 1kg) - Image 4](https://m.media-amazon.com/images/I/71-VLQmVE5L.jpg)
![Siraya Tech Fibreheart PET-CF 3D Filament - Carbon Fiber Reinforced, High Strength & Rigidity, Easy Print, Dimensionally Stable, Aluminum Foil Sealed Bag - for Strong and Precise Parts (Black, 1kg) - Image 5](https://m.media-amazon.com/images/I/713TvuvfSiL.jpg)

## Customer Reviews

### ⭐⭐⭐⭐⭐ A Game Changer...
*by A***N on January 12, 2026*

I have no idea how they pulled it off, but this filament has some of the most insane layer adhesion I've ever seen. And it bonds so aggressively to the bed that it actually fused to my textured PEI plate at 80°C. I had to switch to smooth PEI + glue stick at 50°C just to tame the adhesion to a usable level—and it worked. The glass fiber reinforcement makes it incredibly tough, stabilizes the material, and virtually eliminates warping, so small prints come out great even without a heated chamber. Thanks to the glass fibers, the surface has this beautiful, elegant, non-reflective matte texture that completely masks layer lines—but only at 0.15 mm layer height (or finer). Any higher (like 0.20 mm and up), and the lines start to show. It prints flawlessly at 80 mm/s with a 305°C nozzle temperature. Unfortunately, that's a bit past the limit of the Bambu-style hotend I'm using, but so far it's holding up pretty well. I'm genuinely impressed. The parts come out right the first time with accuracy and uniformity that put ASA and ABS to shame. I did dry the filament for 24 hours, but honestly it seemed printable straight out of the package. The team at Siraya clearly aren't messing around—they know how to get things done. I've never consistently hit 0.1 mm dimensional accuracy with any other filament so effortlessly; it was always 0.4 mm or worse and required endless tweaking. But yeah, I did ruin a build plate because of the ridiculous adhesion—but it's totally my fault. I was completely unprepared for such a game-changing material. I can finally print thin parts with confidence, and I no longer have to make multiple copies just to get a perfect fitment.

### ⭐⭐⭐⭐⭐ Amazingly strong and rigid filament, a bit tricky to print but worth the effort...
*by B***E on September 28, 2025*

Print recommendations: Elegoo Centuri Carbon .6 nozzle @ 320 Bed 100 Keep the chamber as hot as possible .96flow Print under 100mm/sex No fans Ensure your extruder gears are tight! This stuff requires some grunt to unwind. This filament took some trial and error to get it to print reliably in my Elegoo Centuri Carbon. I started printing with a .4 nozzle at 300 degrees using one of the generic filament profiles. It worked for a few small prints but after that I had numerous failures. I switched to a .6 and still had issues. After tightening my extruder gears to about half it made all the difference. I've gotten through some larger prints using the settings above. Seems to be printing well with no adhesion issues using a PEI plate with glue stick. Note this stuff is insanely rigid. I had to add a riser to my printer and ensure the Bowden tube doesn't bend too far or it will snap and your print will pause/fail. I also had to weigh my dry box down because it was lifting it due to the filament being so rigid during unwinding. I was able to print straight from the package without drying. Did I mention this stuff is rigid? It's crazy rigid and strong. Overall this filament is amazing and seems so much stronger than PA6-CF but it is a little trickier to use. I really want to get back to a .4 nozzle and am hopping my changes will allow me to. I hope prices continue to come down as I would likely use this over my normal PA6-CF that's about 30% cheaper.

### ⭐⭐⭐⭐⭐ Print settings conflict, prints easily, but shrinks and is brittle- unusable
*by U***1 on March 7, 2025*

I printed a mechanical piece that I had printed with PLA Professional. Using that filament, everything fit and worked properly. I found this needed 290 nozzle and 90 bed in a Creality soft-sided enclosure on an Aritllery X4 Plus S1 using it's PEI sheet with glue stick. I printed on the Y axis. At 280/80 one side of the base layer pulled loose when the oblong item was printed aligned on the X axis. I printed a .2mm layer height at 100mm/s with fans 20-60%, 2mm retraction @ 40mm/s and 100% infill. See below for print setting conflicts. I used this filament right out of the bag, as it says on the site not to dry it unless you have problems. Once the part printed, I was able to get the supports out relatively easily, and the surface while not smooth was decent. This portion was a marked improvement over the Overture Easy Nylon I tried before. I then removed an internal metal support from the same model in PLA plus and it would not fit into the same opening. I tried to push it into place and the front portion of the pocket cracked, turning the model into 3 pieces. This material is very brittle. A second larger metallic piece designed to be removable fit most of the way in, but jammed once seated. It easily pulls in and out of the PLA plus. I have deducted one star for various reasons- 1. The print settings vary between what is on the bag (I got old stock marked PAHT) and what is on the website. 2. The shrinkage made my item unusable. I'll have to experiment to get the enlargement right in Cura. UPDATE- can't be done, see below. If you go by the label on the bag, here are the print settings: Nozzle 280-300 Bed 80-100 Speed 30-220 Fan 0-80 On the spool, it says Nozzle 280-300 (same) Bed 80-100 (same) Speed 30-200 (slightly lower) Fan 0-80 (same) On their website (product page), it says this: Nozzle 260-280 (lower) Bed 70-80 (lower) Speed 30-120 (lower) Fan 20-60 (lower) On their website's user guide, it says this: Nozzle Temperature 280-300 (same as bag) Bed 70-80 (lower than bag, same as product page) Speed 30-120 (same as product page) Fan 20-60 (same as product page) UPDATE- Reduced to 2 stars. This material is just not suited for precision printing. I adjusted my model in Cura after measuring the failed piece and one that printed OK as-is in PLA Professional. I added 7% to X and 2% to Y and Z. I also reduced layer height to .16. While the support fit in the pocket this time, the locking pin that holds it in place would not go all the way through. It started on one side, and it ended up cracking in the exact same spot as before when I tried to drive it into place as designed- something PLA Pro has no problem with. I also found there was too much slack for the other part that fit into the model. Seems like nice material, but just not suited for what I needed it for. You shouldn't have to spend so much time dialing in shrinkage for such an expensive filament when filaments that are about 1/3 the cost don't have this problem. UPDATE 2- The seller contacted me and advised the website setting were correct, then offered to refund my money. Revised up to 5 stars, that is how to correct a problem.

## Frequently Bought Together

- Siraya Tech Fibreheart PET-CF 3D Filament - Carbon Fiber Reinforced, High Strength & Rigidity, Easy Print, Dimensionally Stable, Aluminum Foil Sealed Bag - for Strong and Precise Parts (Black, 1kg)
- Polymaker PLA PRO Filament 1.75mm 1kg, Tough & High Rigidity Black 3D Printing Filament, PolyLite PLA PRO 3D Printer Filament 1.75mm, Print with Most 3D Printers
- Polymaker Fiberon PET-CF17 3D Printing Filament Black 1.75mm 0.5kg, Excellent Stable Stiffness - Fiberon Carbon Fiber Reinforced PET 3D Printer Filament, Ideal for Jigs and Fixtures

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*Product available on Desertcart Australia*
*Store origin: AU*
*Last updated: 2026-01-27*