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Product Code: IWSSGM494
SGM494 is water-repellent, work-stable, non-melting, tasteless and odourless silicone grease for electrical insulation purposes; it may also be used for potable water supplies.
Key Features
Typical Applications
It is a very versatile grease that has been used successfully in many applications such as:
- Sealing electrical systems against water ingress
- Prevention of corona discharge
- Protection of insulation against corona discharge
- Potting of small electronic components
- Lubrication of electric cables through conduits
- Screw threads lubrication to prevent sticking and corrosion
- Packing of mineral fibre glands to prevent sticking
- Laboratory stop-cock lubrication
- Vacuum sealing of ground glass joints
Effect on Materials
SGM494 has little effect on metals and most plastics. It may, after prolonged contact with plasticised rubbers and plastics, have a slight effect due to plasticiser migration.
General Characteristics
The following are typical values for the product and should not be taken as specification limits.
Rheology Paste
Colour Translucent
Specific Gravity 1.00
Unworked Penetration,
(cone weight g) mm/10t 190-250
Worked Penetration,
(cone weight g) mm/10t 190-300
Note: All penetration values have been measured according to Petroleum Standard IP50/69 or ASTM-D217-68
Water Potable Yes
Weight Loss, 30 hours/ 200¨C, % 1.5
Bleed, 30 hours / 200¨C, % <6
Minimum working temperature ¨C -50
Maximum working temperature ¨C 200
Thermal Conductivity w/mK
Electrical Properties
Dielectric Strength at 1MHz, kV/mm 19.5
Dielectric Constant at 1MHz (BS 2067) 2.9
Volume Resistivity, ¥Ø.cm (BS 6233) 1.0E+15
Power Factor at 1MHz (BS 2067) 1.5E-3
Dielectric Breakdown Voltage kV
Health and Safety
Detailed advice for the safe handling and disposal is given in the individual product Material Safety Data Sheets, available on request.
Storage and Shelf Life
SGM494 grease should be stored in its original sealed containers to prevent contamination of the product. If stored in its original sealed containers it is virtually unaffected by storage temperatures and will be stable under such conditions for 24 months.
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