MOLYKOTE DC-4
MOLYKOTE® / DOWSIL™ DC-4 is a premium silicone-based electrical insulating compound designed for protecting, sealing, and lubricating electrical and electronic components.
It provides long-lasting insulation, moisture protection, and corrosion resistance — making it a trusted product in aviation, aerospace, defense, marine, and industrial environments where reliability is critical.
DC-4 is known for its excellent dielectric strength and ability to maintain stability over wide temperature extremes, vibration, and high-altitude conditions typical in aircraft operations.
Key Features & Benefits
Excellent electrical insulation
Prevents moisture, arcing & corona discharge
Protects against corrosion & contaminants
Stable across very wide temperature range
Lubricates rubber & plastic parts without swelling
Non-melting, water-resistant silicone compound
High dielectric strength for electronic systems
Long service life in harsh aerospace environments
Technical Information
| Property | Value |
|---|---|
| Appearance | Smooth, translucent/white silicone grease |
| Base | Polydimethylsiloxane (silicone) |
| Consistency | Grease-like, non-melting |
| Worked Penetration | ~220–250 (ASTM D217) |