Hydroxy-Terminated Polydimethylsiloxane (OH POLYMER)
Technical Data
| Chemical Structure |  |
| Molecular Formula | HO[(CH3)2SiO]nH |
| Molecular Weight | 122000g/mol |
| CAS No. | 70131-67-8 |
| Appearance | Colorless transparent viscous liquid |
| Viscosity(25℃)/(mPa·s) | 1000 , 2000 , 3000 , 5000 , 10000 , 20000 , 50000 , 80000 |
| Volatiles(150℃,3h) | ≤2.00% |
| Surface Vulcanization Time/h | ≤2 |
| Boiling Point(℃) | 182 |
| Relative Density(water=1) | 0.97 |
| Solubility | Insoluble in water, dissolved in organic solvents, such as benzene, gasoline etc. |
Application
It is widely used as a demoulding of a variety of materials such as plastics and rubbers;
It is widely used in building sealing, insulation of electronic components, shock-proof, moisture-proof and corrosion prevention;
And also used in rubber product’s mold making, demoulding and leather smoothing agent, release agent etc;
And also the basic raw materials of RTV-1 and RTV-2.
Special specifications can be used in fabric finishing and daily chemical industry.