Super Lube 3 oz NSF Silicone Dielectric & Vacuum Grease - High-Performance Food Grade Lubricant for Electrical Insulation & Sealing | -40°F to 500°F

SKU: 91003

Size: 3 oz Tube - Each
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Description

Super Lube® Silicone Dielectric & Vacuum Grease – 3 oz Tube

Super Lube Silicone Dielectric and Vacuum Grease is a high-performance, multi-purpose silicone compound engineered to protect, seal, and insulate critical components. Designed for electrical, vacuum, and general industrial applications, this grease provides exceptional dielectric strength, superior moisture resistance, and long-lasting stability across a wide temperature range.

Its unique formulation prevents corrosion, reduces leak rates in vacuum systems, seals out contaminants, and protects sensitive electrical connections. NSF H1 registration also makes it suitable for incidental food-contact environments, including commercial kitchen equipment and food processing machinery.

Whether you're maintaining electrical connectors, sealing vacuum O-rings, or protecting sensitive components from moisture and chemical exposure, Super Lube delivers reliable performance in demanding conditions.


Key Features

High Dielectric Strength

Provides excellent electrical insulation for connectors, terminals, ignition systems, and other energized components.

Moisture & Contaminant Barrier

Forms a waterproof, non-curing barrier that protects electrical contacts from corrosion, condensation, dirt, and chemical exposure.

Reduces Vacuum Leaks

Fills gland surface imperfections and reduces leak rates in vacuum systems, making it ideal for labs, instrumentation, and process equipment.

NSF H1 Food Grade Registered

Safe for incidental food contact—suitable for kitchen equipment, food processing machinery, and beverage systems.

Material Compatibility

Safe for use with most plastics, rubbers, elastomers, and electrical-grade polymers.

Stable, Clean Appearance

Translucent white grease maintains a clean presence and avoids visual contamination in sensitive environments.

Specifications
NLGI Grade 2
Color Translucent White
Temperature Range -40°F to 500°F (-40°C to 260°C)
Viscosity (Base Oil) cSt @25°C 5000
Specific Gravity @25°C (77°F) 1.07
Penetration, Worked 60 Strokes 265 – 295
Specific Heat (Joules/g,°C) 1.5
Thermal Conductivity 0.16
Dielectric Loss 1.2 x 10¹²
Dielectric Resistivity @25°C 1 x 10¹⁵
Dielectric Constant @25°C 2.8
Oil Separation, 21 hrs / 100°C 0%
Evaporation Loss 22 hrs @212°F 0.4%
Outgassing Characteristics: TML < 1.0%, CVCM < 0.1%

Frequently Asked Questions (FAQs)

What is this grease used for?

It is designed for electrical insulation, vacuum sealing, moisture protection, and general lubrication. Common uses include connectors, terminals, O-rings, gaskets, switches, mating surfaces, and scientific or industrial vacuum systems.

Is this grease electrically conductive?

No. It is dielectric, meaning it resists electrical current and provides insulation. This makes it ideal for protecting electrical connections, not improving electrical conductivity.

Can it be used on rubber and plastic components?

Yes. The formulation is compatible with most rubbers, plastics, and elastomers, including silicone rubber, EPDM, nitrile, neoprene, and PVC.

Is it waterproof?

Yes. It forms a durable waterproof barrier, preventing moisture intrusion and protecting components in wet or humid environments.

Can I use this grease in vacuum systems?

Absolutely. It reduces leak rates by filling micro-gaps and surface imperfections, making it suitable for vacuum pumps, seals, gaskets, and laboratory equipment.

Is the grease food safe?

Yes. It is NSF H1 registered, meaning it is approved for incidental food contact and can be used in food processing, commercial kitchens, beverage equipment, and packaging machinery.

Does it dry out or harden over time?

No. The grease is stable, non-curing, and resistant to oxidation, ensuring long-term performance without hardening.

What temperature range can it withstand?

It remains stable and functional from –40°F to 500°F, supporting both cold-storage and high-temperature industrial environments.

Will it prevent corrosion?

Yes. It forms a protective barrier that prevents oxidation, rust, and chemical corrosion on metal surfaces and electrical interfaces.

Is it suitable for outdoor applications?

Yes. The grease performs well in outdoor conditions due to its water resistance, dielectric strength, and thermal stability.

Can it be used on battery terminals?

Yes—its dielectric properties help protect battery terminals from moisture and corrosion, though it should be applied sparingly to avoid insulating the contact surfaces themselves.

Is there any risk of outgassing in sensitive equipment?

No. It features excellent low outgassing characteristics (TML < 1.0%, CVCM < 0.1%), making it suitable for vacuum chambers, instrumentation, and precision electronics.

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