End-Blocked Hydrogen silicone fluid
Viscosity(cs), H%（wt), Volatile content% ;
10–20, 0.12±0.02, -　;
30–40, 0.07±0.02, -　;
50–70, 0.05±0.02, ≤2 ;
150-170, 0.028±0.02, ≤2 ;
150-171, 0.028±0.03, ≤2 ;
150-172, 0.028±0.04, ≤2 ;
450-550, 0.015±0.05, ≤2 ;

It is a key starting material and an important intermediate for the production of organosilicone modified block or graft copolymer.

because the reactive hydride is on the ends of the chain, they can be used in chain extending reactions where minimal crosslinking is required.