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MOLYKOTE® 4 Electrical Insulating Compound is an NLGI Grade 2–3, silicone-based, semi-flowable compound with a silica thickener for moisture-proof sealing. It is commonly used in electrical assembly.
MOLYKOTE® 4 Electrical Insulating Compound is a silicone-based greaselike lubricant product that can be used across a broad range of equipment types and applications. MOLYKOTE® 4 Compound provides high dielectric strength and excellent water repellency, making it an ideal solution for moisture-proof seal performance in aircraft, automobile, and marine vehicle ignition systems.
MOLYKOTE® 4 is translucent, odorless, and maintains a semi-flowable, greaselike lubricant consistency across a broad operating temperature range of −40°C to 200°C (−40°F to 392°F).
Product type: Lubricant compound
Chemistry: Silicone
NLGI Grade: 2–3
Thickener: Silica
High temp: 204°C
Low temp: −40°C
Color: Translucent white
Hazmat: No
Certifications: NSF 51, NSF 61, SAE AS 8660, FDA 21 CFR 175.300
Volume resistivity (23°C min): 1x1013
Waterproof seal: Pass
Insolubility 8-day soak: Pass
NSF 51 certified
NSF 61 certified
Meets FDA 21 CFR 175.300
Kosher, pareve, and halal certified
Meets SAE AS 8660
Adheres to a variety of substrates (metals, ceramics, rubber, plastics, resins, etc.)
Low volatility
High dielectric strength
Highly moisture resistant and water repellent
Good chemical stability
Good thermal oxidation
Odorless
Deeper penetration with semi-flowable rheology
Leaky or poorly sealed O-rings
Water contamination, infiltration, or rust
Insufficient or variable dielectric strength
DuPont MOLYKOTE® 4 Electrical Insulating Compound can be used in a broad range of lubricating and sealing applications, including but not limited to the following:
Metal-on-plastic and metal-on-rubber surfaces
Cable connectors
O-rings (polymer and elastomer)
Moisture-proof sealing
Battery terminals
Terminals requiring semi-flowable consistency
Rubber seals
Switches
Assembly lubricant
Ignition systems
Spark plug connections
Disconnection junction
MOLYKOTE® 4 Compound was previously known as Dow Corning 4 of Dow Corning DC-4 silicone compound.
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