Prusament PC Blend Carbon Fiber Black Filament 800g

Prusament PC Blend Carbon Fiber Black 800g Prusament PC Blend Carbon Fiber (PCCF) is Prusa's in-house polycarbonate blend reinforced with chopped carbon fiber. A mix that adds rigidity and toughness on top of the base material's already strong heat resistance. Compared to the standard PC Blend, it prints more easily, warps less, and is resistant to UV and common chemicals, all while staying solid in temperatures as high as 114 °C, and climbing to roughly 130 °C when annealed. That combination makes it well suited for load-bearing technical parts that need to retain their shape under heat and stress. The fibers are abrasive though, and a hardened steel nozzle is a must. Each 800g spool is built to a ±0.04 mm diameter tolerance and arrives with its own measured production data. Why Choose Prusament Prusament comes from the same people who design Prusa's printers, produced entirely in-house rather than sourced from a third party. Each spool is made to a ±0.04 mm tolerance with tightly controlled color, and the data lets you verify that consistency from the first meter to the last. Made By Prusa Unhappy with what the filament market offered, Prusa started making its own. The result is held to the standard a printer manufacturer expects from the material feeding its own machines. Premium Materials, Tested It begins with premium-grade resin, and every production stage is checked for diameter, color, and mechanical performance, so nothing leaves the line unless the spool measures up. Quality Reports Every spool comes with the real numbers from its run: diameter logged along the whole length, plus weight and ovality. No other filament maker hands you that, so you can confirm the quality rather than take it on faith. Made in the EU and USA Made in-house. Never outsourced. Prusament is produced in Prusa's own plants in the Czech Republic and in Delaware, USA, not handed off to some anonymous supplier. Keeping production in-house means quicker shipping, lower import duties where they apply, and a supply chain Prusa controls end to end. No outside factory is free to swap a raw material behind the scenes, so there are no nasty batch surprises from a site nobody has set foot in. Carbon Fiber Reinforced More rigid, more durable, and friendlier to print than plain PC Mixing carbon fiber into the polycarbonate lifts its strength, stiffness, and tensile numbers while holding on to the impact and wear resistance PC is known for. The fibers also tame the material, so it prints more predictably than unfilled PC Blend and handles demanding technical work without the usual polycarbonate fuss. In exchange, PCCF is a touch more brittle than the standard blend, and the carbon content gives finished parts a clean, matte black look. High-Temperature Resistance Stable to 114 °C, and up to 130 °C once annealed PCCF holds its form in heat as high as 114 °C, which keeps it usable next to motors, electronics, and other warm spots where PLA or PETG would sag. Need more margin? Annealing a finished part lifts that ceiling to around 130 °C. It's a reliable pick for heat-loaded components like fan shrouds, and anything else expected to keep doing its job as temperatures climb. Dimensional Stability Big parts without the enclosure The carbon fiber gives PCCF unusually good dimensional stability for a polycarbonate, with much less warping than the material is normally known for. That lets you run large models without an enclosure, something pure PC Blend tends to fight you on, and its low creep means working parts can drop straight into machinery. It also stands up well to UV and everyday chemicals, and it prints without any need to dry the spool first. Pros & Cons Pros ✓ Rigid and tough, with strong impact and wear resistance ✓ Handles heat to 114 °C, or about 130 °C after annealing ✓ Dimensionally stable enough to print large parts without an enclosure ✓ Good UV stability and everyday chemical resistance ✓ Clean, professional matte-black surface ✓ About 5% lighter than standard Prusament PC Blend ✓ Prints straight off the spool, no drying needed ✓ Uses carbon fiber recycled from manufacturing waste Cons ✕ Needs a hardened steel nozzle ✕ A little more brittle than standard PC Blend ✕ Slightly looser diameter precision (±0.04 mm) from the carbon fill Print Preparation Nozzle, sheet, and surface, get these right first The carbon fiber is abrasive, so a hardened steel nozzle isn't optional; brass wears out fast. For adhesion, reach for a satin or powder-coated sheet and keep it clean. Wipe it with IPA on a paper towel while it's still cold, since a warm sheet boils the alcohol off before it can lift any grease. Warm water with a drop of dish soap does the job too. Mind the bed, it sits at 110 °C for PCCF and will burn you. Skip printing PCCF straight onto a smooth PEI sheet; it grips that surface hard enough to tear it. When you want a smooth finish, lay down a thin layer of glue stick (Kores works well) first. And if PCCF is a regular in your queue, a glue stick on the satin sheet is a habit worth keeping, as it shields the surface from gradual wear. New spools with OpenPrintTag Smarter spools. Open standard. No cloud lock-in. Since October 2025, every Prusament spool arrives on a redesigned reel carrying a fully rewritable NFC tag built on the OpenPrintTag standard. It stores the filament's key details and reads straight into the Prusa mobile app. The tag runs completely offline, is free to extend, and stays open for anyone to build on. Read more in Prusa's announcement article Technical Parameters Print Settings Nozzle Temperature 285 °C Heatbed Temperature 110 °C Recommended Nozzle 0.4 mm hardened steel nozzle Recommended Steel Sheet Satin or powder-coated Material & Compatibility Filament Diameter 1.75 mm (±0.04 mm) Net Weight 800 g Temperature Resistance Up to 114 °C / 237 °F (up to 130 °C after annealing) Supported Print Profiles CORE One/+/L, XL, MK4/S, HT90