RememberRegistered Now



Hydride Terminated Polydimethylsiloxane RJ-203

※MSDS Download Be Without TDS Download Inquiry


Chemical Structure:

hydrogen-terminated silicone fluid.png

CAS No.: 70900-21-9

Technical Index

Item  Specification
Appearance  Colorless and transparent liquid
Viscosity(at 25°C, mm2/s)  5~400
Hydrogen Content,%  0.01~0.30
Volatile Content:  (120°C, 3H) <10 (viscosity≤10);  <5 (viscosity>10)
Density(25 ℃,g/cm3)  0.98~1.00
Refraction Index(25 ℃)  1.390~1.410 


Hydride Terminated Polydimethylsiloxane is one kind of polysiloxane, which contains Si-H bonds on its end groups. This Si-H bonds is led by the hydrogenation reaction

It can be used as raw material for end-reactive linear modified silicone.

It can be used as chain extender and crosslinker for addition cure liquid silicone rubber.

It is the basic raw material and key silicone intermediates for producing silicone-modified block or graft copolymer.


200KG drums or 1000KG IBC drums


The product should be stored in a ventilated, cool and dry environment, do not allow

to be contacted with acid, alkali and other harmful substances.

Shelf life

1 year.