Dimethylpolysiloxane

Dimethylpolysiloxane

Dimethylpolysiloxane Property

201# Dimethyl Silicone Fluid is a kind of colorless, clear, transparent and odorless liquid, is a high viscosity Polydimethyl-siloxane polymer. Depending on using applicants, it has various viscosities from low to high, covering from 50cSt to 1,000,000cSt.

Dimethylpolysiloxane Feature and advantages:

Chemical name :dimethicone/silicone oil/silicone fluid/ polydimethylsiloxane/simethicone
CAS No.: 63148-62-9/9016-00-6/9006-65-9 .
EINECE : 203-492-7 .

1. Smoothness & softness & hydrophobicity & good chemical stability & insulation property.
2. High and low temperature resistance & high flash point.
3. Low freezing point (it can be chronically used in the temperature from -50℃ to +200 ℃).
4. Small viscosity-temperature coefficicent & big compression ratio & low surface tension.

Dimethylpolysiloxane General Properties

1. Name: Dimethyl Silicone Fluid

2. Model No.: AS-201#

3. Appearance: colorless, clear, transparent liquid

4. Smell: Odorless

5. Viscosity (25°C): 50～1,000,000 cSt

6. Specific Gravity (25°C): 0.955～0.978 g/cm3

7. Volatile Matter Content (150°C/24hr): ≤1.5%

8. Refractive Index (25°C): 1.390～1.410

9. Flash Point: 260°C～300°C

10. Pour Point: -50°C

11. Viscosity Temperature Coefficient: 0.59~0.61

12. Coefficient of Expansion: 0.00094~0.00104 cc/cc/°C

13. Thermal Conductivity (25°C): 0.10~0.16

14. Dielectric Constant (25°C, 50Hz): 2.60-2.80

15. Dielectric Loss Factor(25°C, 50Hz): ≤1.0×104
16. Volume Resistivity: ≥1.0×1015 Ω·cm
17. Breakdown Voltage: ≥1.0 KV/mm
18. Recommended dosage: 1~3%

Form
1. Clear, colorless, odorless fluids

2. High Viscosities

3. Non-Flammable

4. High Damping action

5. Low Temperature stability

6. High Temperature Stability

7. Little viscosity change at temperature

8. Inert to virtually all o-rings, gaskets, seals and valves 

9. Excellent lubrication

10. High oxidation resistance

11. High dielectric strength

12. High water repellency

13. High Shear resistance

14. High molecular weight

15. Although not recommended for silicone o-rings

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