Print Electrically Insulative, Flame-Retardant Parts with Fiberon™ PPS-GF20 Designed for engineers who demand the best in thermal resistance, dimensional stability, and dielectric insulation. This glass fiber–reinforced PPS filament is the go-to choice for high-performance applications across electronics, aerospace, and industrial environm
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Impressive Engineering Filament
C
Collin · September 7, 2026
PPS-GF20 outperformed PPS-CF10 by 18%
In our compression tests done on a lock stand fixture,
Polymaker PPS-GF20 did better by 18% than PPS-CF10.
Parts were printed at 340noz, 110bed, 65chmbr. 100% infill and salt annealed with the (high load), gradual rise, hold, fall method. 230c peak hold for 2.5 hours.
These parts withstood 650lbs for 15 seconds with less than .2mm of deflection!
When we tested the parts under heat at 130c we felt so comfortable with the results that we're now saving over $2000/month by switching to 3d printed PPS-GF20 parts over the brass machined versions. Just wished I could print this material at 100c! With 20% GF I bet I could produce and even stronger tensile strength part for another application. Polymaker hit a home run with this. Very impressed!