Silicone Grease Type D is very firm silicone gel, colourless, odourless and slightly opaque. It is a product slightly thixotropic. Developed for the apparatus working under ultra-high vacuum.
Operating temperature range from -40°C to +250°C.
Silicone Grease Type D is used as a lubricant, sealant and releasing.
The substances contained in the product comply with FDA regulations for NSF H1 (chapter 21 CFR 178.3570) for incidental contact with food.
- Low vapor pressure component allows the use of the apparatus, operating under ultra-high vacuum and at high temperatures.
- Water resistance - protection against corrosion of coated components.
- Very wide temperature range of application.
- Silicone Grease Type D is not soluble in the following solvents: water, methanol, ethanol, glycerol, glycol, mineral oils.
- Silicone Grease Type D is soluble in gasoline, petroleum ether, toluene, kerosene, methylene chloride.
|
Color |
colourless, slightly opaque |
|
Density at 20°C, g/cm3 |
1,04 ± 0,01 |
|
60 stroke worked penetration at 25°C, mm×10-1 |
160 ÷ 210 |
|
Solidification temperature,°C |
-45 |
|
Dropping Point,°C |
do not drop |
|
Operating temperature range, °C |
-40°C ÷ 250°C |
|
Weight loss, 30 h at 200°C, not more than % |
1,5 |
|
Oil separation, 30h at 200°C, not more than, % |
1,0 |
|
Dielectric loss factor, tgd, 1 kHz |
<0,008 |
|
Dielectric loss factor, tgd, 5 kHz |
<0,002 |
|
Dielectric constant, e, 1 ÷ 5 kHz |
2,3 ÷ 3,0 |
|
Resistivity, r, [Wcm] |
>1013 |
|
Dielectric strength, [kV/mm] |
19 |
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