Among the polyetheramines used as curing agents Polyetheramine D 2000 is by far the most commonly applied product. Addition of Polyetheramine D 230 and D 400 leads to higher reactivity of the curing system and also to harder films. If very high hardness is desired the trifunctional Polyetheramine T 403 provides for a stronger crosslinking. With the very long-chain Polyetheramine T 5000 as part of the curing system very flexible and elastic films are obtained. In addition to high flexibility the Polytetrahydrofuranamine 1700 leads to reduced moisture uptake and swelling as well as to improved abrasion resistance.

Curing Agents MW [g/mol] Viscosity [mPa*s]; Density [g/cm3] (23°C) AHEW [g/equiv] m.p. °C Registration Polyetheramine D 230 230 10 (23°C) 0.948 120 <-60 EINECS-conform, TSCA,ENCS/ISHL Polyetheramine D 400 400 25 (23°C) 0.972 220 <-40 EINECS-conform, TSCA,ENCS/ISHL Polyetheramine D 2000 2000 273 (23°C) 0.996 1000 -29 EINECS-conform, TSCA,ENCS/ISHL Polyetheramine T 403 440 102 (23°C) 0.983 160 <-20 EINECS-conform, TSCA,ENCS/ISHL Polyetheramine T 5000 5000 870 (23°C) 0.999 1940 -50 EINECS-conform, TSCA,ENCS/ISHL Polytetrahydrofuranamine 1700 (developmental product) 1700 194 (23°C) 0.953 (40°C) 800 24 EINECS-conform, TSCA,ENCS/ISHL

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