Product Guide for Design Engineers - Quadrant

Classifi cation of Plastics
Semi-crystalline Ertalon ® /Nylatron ® grades offer good mechanical strength and stiffness, high toughness,
low friction and very good wear resistance. These properties make them ideal replacements for a wide variety
of materials from metal to rubber.
Ertacetal ® provides high mechanical strength and stiffness coupled with enhanced dimensional stability. As a
semi-crystalline material, Ertacetal is characterised by a low coeffi cient of friction and good wear properties.
Unreinforced, semi-crystalline Ertalyte ® offers very good dimensional stability in combination with excellent
wear resistance, low friction, high strength, creep resistance and resistance to moderate acidic solutions.
Although exhibiting considerably lower mechanical strength, stiffness and creep resistance than Ertalon/
Nylatron, Ertacetal and Ertalyte, the range of TIVAR ® grades meets the demands of many industries and this
from cryogenic temperatures up to about 85 °C. These materials show outstanding impact strength, excellent
wear and abrasion resistance, low friction and excellent release properties.
Duratron ® PBI, Duratron ® PI and Duratron ® PAI are designed for top performance in both structural and
friction & wear applications! Characterised by an extreme temperature resistance [up to 310 °C continuously
for Duratron PBI], these materials perform where others would fail.
The semi-crystalline Ketron ® PEEK, Techtron ® PPS, Fluorosint ® and Symalit ® PVDF typically offer a
combination of excellent chemical and mechanical properties, also at elevated temperatures. These materials
can be used for both structural and friction & wear applications. Symalit ECTFE and particularly Symalit PFA
exhibit an excellent chemical and heat resistance combined with remarkable electrical insulating and
dielectric properties.
The amorphous Quadrant ® PPSU, Quadrant ® PSU and Duratron ® PEI exhibit an outstanding retention of their
mechanical properties up to the glass transition temperature and excellent electrical properties. Additionally,
their hydrolysis resistance [autoclavability] offer great possibilities for structural parts in medical,
pharmaceutical and dairy industries.
From Semitron ® ESd 225 – a static dissipative acetal grade – up to Semitron ® ESd 520HR – a static
dissipative polyamide-imide grade – six Semitron ESd grades are available to service static dissipative needs
over a broad range of temperatures and mechanical loading conditions.
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