Rizium CF — Carbon Fiber COC Filament

Rizium™ CF is the only fiber-filled Cyclic Olefin Copolymer (COC) blend filament on the market, reinforced with carbon fiber and engineered for engineers who need results, not problems. It delivers fast, low-failure FFF printing with outstanding surface finish, dimensional stability, and near-isotropic strength — with no drying required.

Why Rizium CF

• Near-isotropic strength — superior layer adhesion in all directions
• High rigidity — maintains stiffness under load for precision parts
• No drying required — <0.01% moisture absorption
• High strength at low density — ideal for aerospace and robotics
• Chemical resistance to acids, alcohols, and ketones
• Low VOC — UL GREENGUARD 2904 certified, safe to print indoors

Mechanical Properties

• Flexural Strength: 85 MPa (ISO 178)
• Flexural Modulus: 4.8 GPa (ISO 178)
• Tensile Strength: 56 MPa (ASTM D638)
• Tensile Modulus: 6.7 GPa (ASTM D638)
• Tensile Elongation: 1.1% (ASTM D638)
• IZOD Impact, Unnotched: 225 J/m (ASTM D256)
• IZOD Impact, Notched: 75 J/m
• Glass Transition: 78°C  |  HDT: 73°C  |  Flame: UL94-HB
• Specific Gravity: 1.02 g/cm³  |  Moisture Absorption: <0.01%

Print Settings

• Nozzle: 220–260°C, hardened steel / wear-resistant
• Bed: 90°C (PEI, textured, or G10)
• Print speed: up to 250 mm/s  |  Flow: up to 30 mm³/s
• Diameter: 1.75 mm ±0.02 mm

Note: Due to poor hydrocarbon (oil/gas) resistance it is not ideal for automotive applications, and not ideal for sustained high-temperature use above its 73°C HDT. Due to its low density, an 820g spool offers filament length similar to a 1kg PLA spool. Available in 500g and 820g.

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