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Rizium GF filament spool
Engineering Filament · RIZIUM® Line

Rizium GF

The only fiber-filled Cyclic Olefin Copolymer (COC) blend filament on the market - glass-fiber reinforced for high rigidity and near-isotropic strength, with an outstanding surface finish straight off the printer and no dehydrating required.

$99.00
500 g spool · in stock
↓ Download data sheet (PDF) ↓ Download safety data sheet (SDS)
No dehydrating neededNear-isotropic Chemical resistantCryo / cold-resistantUV stableLow outgassing
Base polymer
Cyclic Olefin Copolymer (COC) blend + glass fiber
Process
FFF - any printer with hardened gears & nozzle
Moisture absorption
<0.01% - always ready to print, no dehydrating
Specific gravity
1.06 g/cm³ - an 820 g spool ≈ the length of a 1 kg PLA spool
Glass transition / HDT
75°C / 75°C
Flame class
UL94-HB
Emissions
Low VOC · no venting required
Diameter
1.75 mm ±0.02 mm
Print profile
Nozzle 220–260°C · bed 90°C · up to 250 mm/s · 30 mm³/s
Mechanical Properties

Tested performance

Measured on a RIZE™ ONE printer, solid infill, X-Y plane.

Flexural strength
87 MPa
ISO 178
Flexural modulus
2.9 GPa
ISO 178
Tensile strength
57 MPa
ASTM D638
Tensile modulus
3.6 GPa
ASTM D638
Tensile elongation
1.9%
ASTM D638
IZOD impact, unnotched
230 J/m
ASTM D256
IZOD impact, notched
83 J/m
ASTM D256

Best for functional prototypes, end-use parts, jigs & fixtures, drone/UAV frames, and cleanroom/lab parts. Note: not ideal for automotive (hydrocarbon exposure) or sustained high-temp use (75°C HDT); support bridges and overhangs well.

Key Benefits

Why print in Rizium GF

KB-01

Stable at negative temperatures

Holds its mechanical properties in sub-zero conditions, so parts stay reliable in cold environments.

KB-02

Lighter weight

Lighter than standard FDM materials - parts weigh less without giving up performance.

KB-03

Nylon-like, far easier to print

Similar properties to Nylon and comparable composites, but much easier to print - no warping and no need to dehydrate the material.

Want us to print it for you?

Skip the spool - send the part and we'll produce it in Rizium GF.

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