Rizium materials
Rizium CF and Rizium GF are carbon and glass fiber filled cyclic olefin copolymer (COC) blends. They print on standard FFF printers with a hardened nozzle, need no drying, and are the base polymers for APD.
Two grades
Carbon fiber filled
The stiffer grade, with 4.8 GPa flexural modulus and 6.7 GPa tensile modulus, and a black, low-sheen finish with fine layer lines.
Typical uses: jigs, fixtures and tooling, brackets, robot end effectors, drone frames, research fixtures.
Glass fiber filled
Off-white, with 87 MPa flexural strength and 83 J/m notched impact, and the base material for full-color APD parts, like the wood grain insert above.
Typical uses: end-use parts, lab accessories, enclosures, parts for wet or humid environments.
Properties
| Property | Rizium CF | Rizium GF | Standard |
|---|---|---|---|
| Flexural strength | 85 MPa | 87 MPa | ISO 178, Method A |
| Flexural modulus | 4.8 GPa | 2.9 GPa | ISO 178, Method A |
| Tensile strength | 56 MPa | 57 MPa | ASTM D638 |
| Tensile modulus | 6.7 GPa | 3.6 GPa | ASTM D638 |
| Tensile elongation | 1.1% | 1.9% | ASTM D638 |
| Izod impact, unnotched | 225 J/m | 230 J/m | ASTM D256 |
| Izod impact, notched | 75 J/m | 83 J/m | ASTM D256 |
| Glass transition | 78 °C | 75 °C | |
| Heat deflection temperature | 73 °C | 75 °C | |
| Specific gravity | 1.02 g/cm³ | 1.06 g/cm³ | |
| Moisture absorption | below 0.01% | below 0.01% | |
| Flame classification | UL94 HB | UL94 HB | |
| Filament diameter | 1.75 ± 0.02 mm | 1.75 ± 0.02 mm | |
| Spool | 820 g | 820 g |
Values from the Rizium CF and GF technical data sheets, rev 1.2. Mechanical specimens printed on a RIZE One printer with solid infill in the X-Y plane. These are measured values, not guaranteed specifications; results depend on part design, printer and settings. Because of its low density, an 820 g spool holds about the same length of filament as a 1 kg PLA spool.
Parts
Chemical resistance
Methanol, ethanol, IPA, acetone, MEK, dilute and concentrated hydrochloric acid, 10% sulfuric acid, nitric acid, phosphoric acid, 10% acetic and formic acid, 50% caustic soda, 10% ammonia, 30% hydrogen peroxide, 40% formaldehyde, ethylene oxide, DMSO and DMF.
Hydrocarbons (pentane, hexane, toluene, xylene, oils and fuels), ethers and THF, cyclohexanone, limonene, concentrated sulfuric acid and 1,2-dichloroethane.
Ratings from the chemical resistance table in the technical data sheets. Exposure time and temperature are not specified, so test parts in their actual service conditions.
Limits
Printing
* Depends on the hotend; measured on a Bambu Lab X1C. Support all bridges and overhangs steeper than the threshold for a good surface. Avoid feed paths with tight tube bends, and use multi-material systems only if they are rated for fiber filled filament. Keep spools in their bag when not in use; shelf life is one year.
Rizium Support
Rizium Support is a support filament made to pair with Rizium CF and GF. Print the part from one nozzle and the supports in Rizium Support from the other, with zero interface distance. The supports snap away by hand and leave smooth, clean undersides on overhangs and bridges.
In use
Prymetech, a metrology and quality control engineering firm, needed a fixture to cradle a heavy metal part with complex geometry during coordinate measuring machine inspection. PLA, PETG and ABS were not strong enough for the load, and machining the shape would have meant long lead times and a lot of waste. Prymetech printed the fixture base in Rizium CF on an XRIZE APD system, with release ink at the supports, and assembled it with standard modular fixturing components.
Questions
No. Rizium CF and GF absorb less than 0.01% moisture, so they print straight from the bag. Store the spool in its bag between prints.
Any FFF printer for 1.75 mm filament with a hardened steel or wear resistant nozzle and hardened drive gears. No enclosure is needed. Avoid feed paths with tight tube bends, and use multi-material systems only if they are rated for fiber filled filament.
Rizium CF is filled with carbon fiber and is the stiffer grade, with 4.8 GPa flexural modulus against 2.9 GPa for GF. Rizium GF is filled with glass fiber, is off-white, and is the base material for full-color APD parts.
Parts exposed to oils, fuels and other hydrocarbons, and parts that run hot: the heat deflection temperature is 73 °C for CF and 75 °C for GF.
Rizium CF, Rizium GF and Rizium Support are sold through the Niche 3D Store at niche3d.store. For samples or material for development work, contact Palitra.
New customers order Rizium CF, Rizium GF and Rizium Support through the Niche 3D Store. For samples or material for a development project, contact us.