--- product_id: 635633662 title: "– Siraya Tech Fibreheart PET-CF 3D Printer Filament, High Strength, Black 1kg" brand: "siraya tech" price: "€ 92.98" currency: EUR in_stock: true reviews_count: 12 category: "Siraya Tech" url: https://www.desertcart.hr/products/635633662-siraya-tech-fibreheart-pet-cf-3d-printer-filament-high-strength store_origin: HR region: Croatia --- # ±0.1mm dimensional stability High heat resistance up to 90°C+ 15% chopped carbon fiber mesh – Siraya Tech Fibreheart PET-CF 3D Printer Filament, High Strength, Black 1kg **Brand:** siraya tech **Price:** € 92.98 **Availability:** ✅ In Stock ## Summary > 🖤 Print Strong, Print Smart — Own the Future of 3D Precision! ## Quick Answers - **What is this?** – Siraya Tech Fibreheart PET-CF 3D Printer Filament, High Strength, Black 1kg by siraya tech - **How much does it cost?** € 92.98 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.hr](https://www.desertcart.hr/products/635633662-siraya-tech-fibreheart-pet-cf-3d-printer-filament-high-strength) ## 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 Tough:** Perfect balance of strength and low weight ideal for drones, mechanical parts, and sports gear. - • **Pro-Grade Printability:** Easy to print with excellent layer bonding—just keep it dry to unlock peak performance. - • **Heat & Moisture Resilience:** Engineered to resist heat and moisture better than PA and PC, ensuring long-term performance. - • **Precision Printing Guaranteed:** Superior dimensional stability reduces warping and shrinkage for flawless, functional parts. - • **Carbon Fiber Reinforced Strength:** 15% chopped carbon fibers form a mesh skeleton for unmatched rigidity and durability. ## Overview Siraya Tech Fibreheart PET-CF is a premium 3D printing filament combining PET with 15% chopped carbon fiber reinforcement. It delivers exceptional mechanical strength, heat resistance, and dimensional stability, minimizing warping and shrinkage. Ideal for professionals and enthusiasts demanding tough, lightweight, and precise parts, this filament requires careful moisture control for optimal results and comes vacuum-sealed for freshness. ## Description Product Description 15% Chopped Carbon Fiber Reinforced Uses Siraya Tech's proprietary fiber reinforcement technology to control fiber dispersion, forming a mesh structure that improves mechanical properties, heat resistance, and part dimensional stability with no warping. PET-CF vs PETG-CF Siraya Tech Fibreheart PET-CF is a high-performance material that should not be confused with PETG-CF. While both contain carbon fiber reinforcement, PET-CF offers superior mechanical properties, heat resistance, and dimensional stability compared to PETG-CF. PET-CF is an ideal choice for demanding applications that require higher strength, stiffness, and precision. Compared to PAHT-CF, PET-CF demonstrates better resistance to moisture and lower creep tendencies. PET's highly regular molecular chain structure and rigid rings result in less deformation under long-term loads, making it an ideal choice for applications requiring consistent performance in varying environmental conditions. Dimensional Stability PET-CF filamentcom bines ease of printing and strong interlayer adhesion with increased stiffness and enhanced strength for superior dimensional stability. No Warping, Shrinkage Carbon fibers in the PET matrix enhance mechanical strength, heat resistance, and dimensional stability, preventing warping. Pro-Tips for Usage: Although finished parts have low moisture absorption, the raw PET-CF filament is hygroscopic. To avoid stringing and ensure structural integrity, we strictly recommend using a filament dryer or dry box during the printing process. Dry at 90°C for 4-6 hours if needed. Storage and Handling Although PET has very low moisture absorption, it is still sensitive to humidity. Store unused Siraya Tech Fibreheat filament in sealed packaging with desiccant. Dry filament at 100-120°C for 4-6 hours to restore print quality if needed. Cautions for Use: AMS NOT Compatible. Review: Nice stuff, not a nightmare to print - Bought this to print a high temp tool head for my Voron printer. It wasn't too hard to print, but you'll need to achieve some quite high temperatures so you won't be printing this on a big standard printer. Once annealed it's quite tough, light and very brittle. It's quite hard to keep dry, you'll need the ceramic bead drying stuff, dessicant won't cut it and an active heater needs to be warmer than your typical filament dryer will go; some people dry it in an air fryer I hear, but don't use the one you cook food in, it's not safe; buy one specifically for drying this and annealing in salt. Haven't used the whole roll yet but this will be my go to next time I need more. Review: Tough Filament - This is the first PET CF filament I tried so I cannot compare it to others. All I can say is the resulting prints are very tough and rigid. Dry, dry, dry, absolutely necessary with this filament as you're no doubt aware. Straight out of the vacuum sealed bag it was pretty good but after a day the prints were rough. Heated dryer was purchased (Creality Official Space PI Filament Dryer Plus) and this resulted is perfect prints. Attached pic, two bottom components printed from freshly opened bag. Top after drying for 12 hrs at 65 deg C. Note the glossy textured finish and lack of layer lines, its actually better than depicted. The print between opening the bag and drying the filament went straight into the bin, ragged and rough. This was circa 12hrs exposed to UK cold and humidity. I thought I would try and pull the print apart to see just how strong it was, absolutely no chance. It opened up a little at the clamping end but went no further. Overall, great value for money, print using the specified parameters, keep it dry. ## Features - Improved Performance & Reliability Our PET-CF filament is a high-performance composite material that combines polyethylene terephthalate (PET) with carbon fibers. The PET-CF 3D filament ensures easy printability, good layer bonding and excellent mechanical properties. It offers increased rigidity, improved dimensional stability and significantly higher strength. - Intelligent fiber reinforcement technology: Carbon fibers form a mesh skeleton within the PET matrix, which significantly improves the mechanical properties, heat resistance, and dimensional stability. Thanks to the internal stress release, no deformation occurs. - Superior dimensional stability: The highly regular molecular chain structure of PET and the rigid benzene rings result in better mechanical properties and less deformation under long-term stress compared to PA and PC materials. Our PET-CF filament reduces warping and shrinkage, ensuring your prints maintain their precise dimensions and shapes – crucial for functional parts and complex designs. - LIGHTWEIGHT AND DURABLE Our PET-CF filament offers a perfect balance between longevity and a lightweight profile. Its low moisture absorption makes it ideal for applications where both strength and weight are crucial factors. It is an excellent material for making robust but lightweight components such as drone parts, mechanical assemblies and sports equipment. - Versatile Applications: Whether you need reliable, high-strength components as a professional or work on detailed, functional projects as a hobbyist – our PET-CF filament is versatile enough to meet a variety of requirements. Its easy printability and mechanical properties make it suitable for everything from industrial prototypes to custom sports equipment. ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B0CSPFL7MB | | Best Sellers Rank | 2,953 in Business, Industry & Science ( See Top 100 in Business, Industry & Science ) 153 in Filament 3D Printing Materials | | Brand | Siraya Tech | | Brand Name | Siraya Tech | | Colour | PET-CF Black 1kg | | Country Of Origin | China | | Customer Reviews | 4.4 out of 5 stars 237 Reviews | | Global Trade Identification Number | 00850019574630 | | Item Diameter | 1.75 Millimetres | | Item Weight | 1.2 Kilograms | | Item diameter | 1.75 Millimetres | | Item weight | 1.2 Kilograms | | Manufacturer | Siraya Tech | | Manufacturer Part Number | PET-CF | | Material | PET-CF | | Material Type | PET-CF | | Model Number | 3003 | | Number of Items | 1 | | Special Features | Combination of PET and carbon fiber, intelligent fiber reinforcement technology, excellent dimensional stability | | Special feature | Combination of PET and carbon fiber, intelligent fiber reinforcement technology, excellent dimensional stability Special feature Combination of PET and carbon fiber, intelligent fiber reinforcement technology, excellent dimensional stability See more | | Unit Count | 1000.0 gram | ## Product Details - **Brand:** Siraya Tech - **Colour:** PET-CF Black 1kg - **Item diameter:** 1.75 Millimetres - **Item weight:** 1.2 Kilograms - **Material:** PET-CF ## Images ![– Siraya Tech Fibreheart PET-CF 3D Printer Filament, High Strength, Black 1kg - Image 1](https://m.media-amazon.com/images/I/713TvuvfSiL.jpg) ![– Siraya Tech Fibreheart PET-CF 3D Printer Filament, High Strength, Black 1kg - Image 2](https://m.media-amazon.com/images/I/71-VLQmVE5L.jpg) ![– Siraya Tech Fibreheart PET-CF 3D Printer Filament, High Strength, Black 1kg - Image 3](https://m.media-amazon.com/images/I/71nfIHSPvsL.jpg) ![– Siraya Tech Fibreheart PET-CF 3D Printer Filament, High Strength, Black 1kg - Image 4](https://m.media-amazon.com/images/I/71PLVQOZuHL.jpg) ![– Siraya Tech Fibreheart PET-CF 3D Printer Filament, High Strength, Black 1kg - Image 5](https://m.media-amazon.com/images/I/61sltLj0XxL.jpg) ## Available Options This product comes in different **Color** options. ## Customer Reviews ### ⭐⭐⭐⭐⭐ Nice stuff, not a nightmare to print *by M***A on 2 October 2025* Bought this to print a high temp tool head for my Voron printer. It wasn't too hard to print, but you'll need to achieve some quite high temperatures so you won't be printing this on a big standard printer. Once annealed it's quite tough, light and very brittle. It's quite hard to keep dry, you'll need the ceramic bead drying stuff, dessicant won't cut it and an active heater needs to be warmer than your typical filament dryer will go; some people dry it in an air fryer I hear, but don't use the one you cook food in, it's not safe; buy one specifically for drying this and annealing in salt. Haven't used the whole roll yet but this will be my go to next time I need more. ### ⭐⭐⭐⭐⭐ Tough Filament *by G***L on 2 January 2026* This is the first PET CF filament I tried so I cannot compare it to others. All I can say is the resulting prints are very tough and rigid. Dry, dry, dry, absolutely necessary with this filament as you're no doubt aware. Straight out of the vacuum sealed bag it was pretty good but after a day the prints were rough. Heated dryer was purchased (Creality Official Space PI Filament Dryer Plus) and this resulted is perfect prints. Attached pic, two bottom components printed from freshly opened bag. Top after drying for 12 hrs at 65 deg C. Note the glossy textured finish and lack of layer lines, its actually better than depicted. The print between opening the bag and drying the filament went straight into the bin, ragged and rough. This was circa 12hrs exposed to UK cold and humidity. I thought I would try and pull the print apart to see just how strong it was, absolutely no chance. It opened up a little at the clamping end but went no further. Overall, great value for money, print using the specified parameters, keep it dry. ### ⭐⭐⭐⭐⭐ Excellent engineering filament *by R***N on 29 November 2025* Bought this to upgrade some parts on my Voron which are currently ASA CF but I wanted the extra rigidity and temperature resistance of annealed PET CF. Yes, it is brittle compared to some other filaments but as long as your careful loading it's not an issue. Loaded it straight out of the box, downloaded the settings from the Siraya website and threw a benchy at it. Didn't bother with any of my usual calibration routines and was very impressed with the results. This will be my new go-to when I want strong heat resistant parts. ## 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 --- ## Why Shop on Desertcart? - 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016 - 🌍 **Shop Globally** — Access 737+ million products across 21 categories - 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price - 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members) - 🔒 **Secure Payments** — Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.hr/products/635633662-siraya-tech-fibreheart-pet-cf-3d-printer-filament-high-strength](https://www.desertcart.hr/products/635633662-siraya-tech-fibreheart-pet-cf-3d-printer-filament-high-strength) --- *Product available on Desertcart Croatia* *Store origin: HR* *Last updated: 2026-08-11*