MOLYKOTE® 4 Electrical Insulating Compound

Grease-like material containing an inert silica filler in combination with selected polydimethyl silicone fluids.

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Key Properties

NLGI Grade 2-3, translucent white, used primarily in electrical wiring systems and electrical assemblies and terminals.


A moisture-proof seal for aircraft, automotive and marine ignition systems and spark plug connections, disconnection junctions in electrical wiring systems also in electrical assemblies and terminals.  Used as a seal in lubricant for cable connectors, battery terminals, rubber door seals, switches and rubber and plastic O-rings and as assembly lubricant for various metal-on-plastic and metal-on-rubber combinations.

Features & Benefits

High dielectric strength; Low Volatility; Moisture-resistant; Good thermal oxidation and chemical stability; Highly Water repellent; adheseres readily to dry metals, ceramics, rubber, plastics and insulating resins. Retains its grease-like consistency from -40°C to +204°C; Odorless; Highly water-repellent. Meets MIL-S-8660C; Meets SAU AS 8660; Certification to NSF 51 & 61;  Meets requirements for FDA 21 CFR 175.300.

Product Details

Product Type: 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


12 ea Tube (12x150g): FDA 21 CFR 175.300; SAE:AS8660; AEROJET: APSP-44498
18.1 kg Pail : FDA 21 CFR 175.300; SAE:AS8660
199.5 kg Drum : FDA 21 CFR 175.300
4 ea Can (4x3.6kg): FDA 21 CFR 175.300; SAE:AS8660

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