This silicone compound features excellent dielectric properties and is highly water-repellent. It contains inert silica filler and selected polydimethyl silicone fluids, making it resistant to oxidation and nontoxic. Available in various consistencies, it is suitable for electrical insulation applications.
Overview
Dow Corning silicone compounds are greaselike materials containing a inert silica filler in combination with selected polydimethyl silicone fluids. They have excellent dielectric properties; are highhly water repellent, resistant to oxidation and essentially nontoxic. Dimethyl silicone compounds come in three bsasic consistencies: Light - DC7 Release Compound Medium - DC4 Electrical Insulating Compound Heavy - DC111 Valve Lubricant
Features & Benefits
Excellent dielectric properties: Prevents shorts and ensures reliable electrical performance
Highly water repellent: Creates a moisture barrier for protection in wet or outdoor environments
Wide service temperature range: Performs reliably in diverse environmental conditions
Resistant to oxidation: Long-lasting stability against air and chemical exposure
Non-melting, non-curing: Maintains consistent paste form without hardening or flowing
Material compatibility: Safe for most plastics, rubbers, and elastomers
Essentially nontoxic: Safer to handle compared to some industrial compounds
Specifications
Part Number: DC4-30Z
Container Size: 3 oz
Form: Grease-like Paste
Color: Translucent White/Light Gray
Odor/Scent: Odorless
Consistency: Medium (NLGI Grade 2-3 equivalent)
Composition: Inert silica filler combined with selected polydimethyl silicone fluids
Specific Gravity: 1.0 g/cm³
Dielectric Strength: >500 Volts/mil
Shelf Life: 60 months (5 years)
Technical Information
Applications: Sealing and insulating electrical connections, terminals, power assemblies; moisture-proof sealing for ignition systems, spark plug boots, disconnect junctions; lubricating O-rings and rubber gaskets; marine corrosion prevention
Military Specifications: Often meets or exceeds MIL-S-8660C requirements
Application Method: Can be applied by hand, brush, or automated dispensing; surfaces should be clean and dry for best results