Decompositon Temperature 440 dc, GTT 360 dc Cyanate Ester: more than 10 ... ESTER- CAS No.30944-92-4- Lower dielectric Constant- Higher Glass Temperature- with high quality & competitive price- own patents.Apperance Crystalline powder ... , Moisture 1000mg/kg Max, Dielectric Constant 3 max, Decomposition Temperature 260-450, Glass Transition Temperature 180-260. m Packed in 25, 50, 100kgs drums ...