its now called dc4
Product Code: Dow Corning DC4 grease ( MS 4 ) - Electrical Comp
Dow Corning DC4 - EX MS4, Silicone grease electrical compound DC4 is a non melting, water proofing and insulating silicone compound for ignition systems, electronics equipment and block connector terminals
http://www.greyline.com/pdf/MSDS-DowCorning4.pdf
A non-melting, waterproofing and insulating silicone compound for ignition systems and electronic equipment. To specification MIL-59860-C.
Dow Corning DC4 is a dimethyl silicone compound for a variety of lubrication and protection applications. Uses of Dow Corning 4 Electrical Insulating Compound include:
Moisture-proof seal for aircraft, automotive and marine ignition systems and spark plug connections
Waterproof electrical connections
Electrical assemblies and terminals
Seal and lubricant for cable connectors, battery terminals, rubber door seals and rubber and plastic O-rings
Assembly lubricant for various metal-on-plastic and metal-on-rubber combinations
Lubrication for control and pressure plug valves
Features: Maintains serviceable consistency from -70 to 400°F (-57 to 204°C), Practically nonvolatile, Odourless, Resistant to a wide range of chemicals; generally resistant to mineral oils, vegetable oils, air, dilute acids, alkalines and most aqueous solutions, Moisture resistant, Electrically insulating, Excellent rubber lubrication, Excellent release and sealing properties, Resistant to oxidation, Essentially nontoxic and nonmelting, Show little tendency to dry out in service.
Dimethyl silicone is a polymer that acts as an anti-foaming agent and a propellant