One 150g (5.3 oz) tube of electrical insulating compound.

Electrical insulating compound for sealing electrical connections

A dimethyl silicone compound, 4 Electrical Insulating Compound lubricates and forms a moisture-proof, electrically-insulating seal for  electrical connections, electrical assemblies and terminals. Also, it can seal and lubricate cable connectors, battery terminals and rubber and plastic O-rings. It can be used as an assembly lubricant in metal-on-plastic and metal-on-rubber combinations.

4 Electrical Insulating Compound is resistant to wide range of organic and inorganic chemicals, as well as mineral oils, vegetable oils, air, dilute acids, alkalines, and most aqueous solutions. Odorless, practically nonvolatile, nontoxic and non-melting, the compound has excellent release and sealing properties and shows little tendency to dry out in service. It maintains serviceable consistency from -70° to 400° (-57° to 204°C).


One tube, 150g (5.3 OZ)


Dow Corning


Dimethyl silicone compound

Typical properties

Arc resistance: 130

Color: Translucent

Dielectric constant at 100 Hz: 2.98

Dielectric constant at 100 kHz: 3.01

Dielectric strength: >450 volts per mil v/mil

Dissipation factor at 100 Hz: .0001

Dissipation factor at 100 kHz: .0002

NLGI number: 2

Service temperature (high): 204 Deg C

Service temperature (low): –57 Deg C

Shelf life: 1,800 days

Specific gravity @ 25C: 1

Volume resistivity: 1.1e+015 ohm-centimeters

Worked penetration: 240 mm/10

Note: These values are typical properties and are not intended for use in preparing specifications.


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