Chemical name : Polydimethylsiloxane CAS No. : 63148-62-9 EINECE : 618-493-1 Apperance : colorless and transparent Physical and chemical features : a.Smoothness & softness & hydrophobicity & good chemical stability & insulation property b.High and low temperature resistance & high flash point. c.Low freezing point (it can be chronically used in the temperature from -50? to +200 ?). d.Small viscosity-temperature coefficicent & big compression ratio & low surface tension. -