"XecoT" is an aromatic polyamide resin which has overwhelming performance based on Unitika's original polymerization and compound technology. High crystallinity has been achieved by creating homo structure described above. High heat resistance, low moisture absorption, great sliding performance, which have been derived from its high crystallinity. XecoT are made by the biomass material.

XecoT™ graf


1. Heat resistance

Due to Unitika's special high polymerization technology, "XecoT" has high melting point(Tm), high crystallinity and other overwhelming performance than other crystalline resins. Compared with the other high heat crystalline resin such as PPS or other aromatic nylon, it has a definite advantage and great features such as reflow heat resistance and mechanical property at high temperatures.
It has following effect;
Excellent creep characteristic around automobile engine room under the physical load (intake and exhaust systems) at high temperatures. Reducing the blister during reflow in electrical and electronic applications.

  • Heat resistance comparison

    Heat resistance comparison
  • Tensile strength at high temperature comparison

    Tensile strength at high temperature comparison

2. Low water absorption

Water absorption of "XecoT" is lower than other nylons.
Change in physical properties due to water absorption is rarely observed, which means the dimensional change can be greatly reduced.

Water absorption rates comparison

Water absorption rates comparison

Water absorption test method

Test temperature 23°C
Test time 24h
Test condition underwater
Specimen size 4mmt

3. High Lubricate property

"XecoT" is the material which is low friction and abrasion. We also have high lubrication grade, which can be used in parts required high lubrication like gear and bearing-retainer parts.

Friction and abrasion property

Friction and abrasion property
Friction and abrasion property

Abrasion Test Method

Standard JIS K7218
(Suzuki method abrasion test)
Temperature At room Temperature
Test speed 500mm/sec
Test load 0.25MPa
Test distance 5.4km
The otherside material Metal(S45C)