Electrical Contacts Oil | McMaster-Carr

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LB 8423 Dielectric Grease

Molykote 4 Electrical Insulating Compound

Molykote 5 Compound

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Conductive

Electrically Insulating

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Additive

Silver (75% Concentration)

Silver (85% Concentration)

Silver (100% Concentration)

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Thickener

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40 BTU⋅in/(hr⋅ft²⋅°F)

60 BTU⋅in/(hr⋅ft²⋅°F)

Lubricant Type

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EAR99

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Minimum Temperature

Electrical Resistivity

32 Products

About Grease

About Lubricants

Also known as dielectric grease, use insulating grease to lubricate and protect electrical systems. It resists water and corrosion. This grease can be used on most rubber and plastic.

NLGI viscosity grade is a rating of a grease's consistency. NLGI 1 is about the consistency of tomato paste. NLGI 2 is about the consistency of peanut butter. NLGI 3 is about the consistency of vegetable shortening.

Dielectric strength measures the maximum voltage a grease can withstand without losing its insulating properties. The higher the dielectric strength, the better its quality as an insulator.

Grease lubricates most efficiently below the maximum temperature. Nonmelting grease can be used at temperatures above the maximum temperature briefly, but then will break down more quickly.

Molykote 5 Compound is for use on insulators, bushings, and high-current switches.

Each

		Container
NLGI Viscosity Grade	Base Oil	Size, fl. oz.	Net Weight, oz.	Type	Temp. Range, °F	Melting Temp.	Dielectric Strength, V/mil	Color		Each
DuPont Molykote 5 Compound—Silica Thickener
3	Synthetic	5.3	__	Tube	-65° to 450°	Not Rated	545	Gray	0000000	000000
Loctite® LB 8423 Dielectric Grease—Silica Thickener
3	Synthetic	0.3	__	Tube	-65° to 400°	Not Rated	500	Clear	0000000	0000
Silica Thickener
1	Synthetic	5.3	__	Tube	-50° to 400°	Not Rated	385	White	0000000	00000
1	Synthetic	14	__	Grease Gun Cartridge	-50° to 400°	Not Rated	385	White	0000000	00000
1	Synthetic	16	__	Jar	-50° to 400°	Not Rated	385	White	0000000	00000
2	Synthetic	__	0.17	One-Time-Use Pack	-40° to 400°	Not Rated	830	White	0000000	0000
2	Synthetic	5.3	__	Tube	-40° to 400°	Nonmelting	830	White	0000000	00000
2	Synthetic	14	__	Grease Gun Cartridge	-40° to 400°	Nonmelting	830	White	0000000	00000

Package

		Container
NLGI Viscosity Grade	Base Oil	Size, fl. oz.	Type	Temp. Range, °F	Melting Temp.	Dielectric Strength, V/mil	Color	Pkg. Qty.		Pkg.
DuPont Molykote 5 Compound—Silica Thickener
3	Synthetic	5.3	Tube	-65° to 450°	Not Rated	545	Gray	12	00000000	0000000
Silica Thickener
1	Synthetic	5.3	Tube	-50° to 400°	Not Rated	385	White	12	00000000	000000
1	Synthetic	16	Jar	-50° to 400°	Not Rated	385	White	16	00000000	000000
2	Synthetic	5.3	Tube	-40° to 400°	Nonmelting	830	White	12	00000000	000000

Electrically and Thermally Conductive Grease

A high silver content gives this grease excellent conductivity for applications where electricity and heat transfer are required. It is suitable for ESD (electrostatic discharge) and EMI (electromagnetic interference) shielding applications. Product regulations restrict sales to the listed jurisdictions/areas.

NLGI viscosity grade is a rating of a grease's consistency. NLGI 2 is about the consistency of peanut butter.

Electrical resistivity is a measure of how well a material opposes the flow of electricity. The lower the rating, the more electricity it conducts.

Thermal conductivity measures a material’s ability to transfer heat. The higher the rating, the more heat it transfers.

Grease lubricates most efficiently within the listed temperature range. Melting temperature is the point at which grease will fail and run out of equipment, leaving it to run dry.

			Container
NLGI Viscosity Grade	Base Oil	Additive	Size, fl. oz.	Type	Temp. Range, °F	Melting Temp., °F	Electrical Resistivity, ohms-cm	Thermal Conductivity	Color	Cannot Be Sold To		Each
Silicone Thickener
Not Rated	Synthetic	100% Silver	0.2	Syringe	-70° to 485°	490°	0.010	40 Btu/hr. × in./sq. ft./°F	Silver	Outside United States and Canada	0000000	000000
Grease without Thickener
2	Synthetic	75% Silver	1	Jar	-70° to 500°	Not Rated	0.005	60 Btu/hr. × in./sq. ft./°F	Silver	__	0000000	000000
2	Synthetic	85% Silver	0.5	Jar	-40° to 300°	Not Rated	0.005	60 Btu/hr. × in./sq. ft./°F	Silver	__	0000000	000000
2	Synthetic	85% Silver	1	Jar	-40° to 300°	Not Rated	0.005	60 Btu/hr. × in./sq. ft./°F	Silver	__	0000000	000000

Food Industry Electrical-Insulating Grease

Use this grease in areas where there is the possibility of contact with food. Also known as dielectric grease, it lubricates and protects electrical systems. It resists water and corrosion. This grease can be used on most rubber and plastic.

NLGI viscosity grade is a rating of a grease's consistency. NLGI 1 is about the consistency of tomato paste. NLGI 2 is about the consistency of peanut butter.

Dielectric strength measures the maximum voltage a grease can withstand without losing its insulating properties. The higher the dielectric strength, the better its quality as an insulator.

Grease that is NSF Registered H1 and grease that meets FDA Compliant 21 CFR 178.3570 are rated for incidental contact with food. Grease that meets NSF/ANSI 51 and FDA Compliant 21 CFR 175.300 are rated for direct contact with food. Grease that meets NSF/ANSI 61 is certified for use with components that come into contact with drinking water. Grease that meets ASTM E595, a standard used by NASA, will produce almost no volatile emissions, even in a high vacuum. They’re a good choice for use around sensitive electronics.

Grease lubricates most efficiently below the maximum temperature. Nonmelting grease can be used at temperatures above the maximum temperature briefly, but then will break down more quickly.

Each

			Container
NLGI Viscosity Grade	Base Oil	Additive	Size, fl. oz.	Net Weight, lbs.	Type	Temp. Range, °F	Dielectric Strength, V/mil	Color	Specifications Met		Each
DuPont Molykote 4 Electrical Insulating Compound—Silica Thickener
1	Synthetic	__	__	8	Pail	-40° to 400°	450	White	SAE AS8660, FDA Compliant 21 CFR 175.300, NSF/ANSI 61, NSF/ANSI 51	0000000	0000000
1	Synthetic	__	5.3	__	Tube	-40° to 400°	450	White	SAE AS8660, FDA Compliant 21 CFR 175.300, NSF/ANSI 61, NSF/ANSI 51	0000000	00000
Silica Thickener
1	Synthetic	Silicone	1	__	Tube	-40° to 400°	350	Clear	NSF Registered H1	0000000	0000
1	Synthetic	Silicone	4	__	Tube	-40° to 400°	350	Clear	NSF Registered H1	0000000	00000
Nonmelting Grease without Thickener
2	Synthetic	Silicone	3	__	Tube	-40° to 500°	400	White	FDA Compliant 21 CFR 178.3570, NSF Registered H1, ASTM E595	0000000	00000
2	Synthetic	Silicone	14.1	__	Grease Gun Cartridge	-40° to 500°	400	White	FDA Compliant 21 CFR 178.3570, NSF Registered H1, ASTM E595	0000000	00000

Package

			Container
NLGI Viscosity Grade	Base Oil	Additive	Size, fl. oz.	Type	Temp. Range, °F	Dielectric Strength, V/mil	Color	Specifications Met	Pkg. Qty.		Pkg.
DuPont Molykote 4 Electrical Insulating Compound—Silica Thickener
1	Synthetic	__	5.3	Tube	-40° to 400°	450	White	SAE AS8660, FDA Compliant 21 CFR 175.300, NSF/ANSI 61, NSF/ANSI 51	12	00000000	0000000
Silica Thickener
1	Synthetic	Silicone	4	Tube	-40° to 400°	350	Clear	NSF Registered H1	12	00000000	000000
Nonmelting Grease without Thickener
2	Synthetic	Silicone	3	Tube	-40° to 500°	400	White	FDA Compliant 21 CFR 178.3570, NSF Registered H1, ASTM E595	12	0000000	000000
2	Synthetic	Silicone	14.1	Grease Gun Cartridge	-40° to 500°	400	White	FDA Compliant 21 CFR 178.3570, NSF Registered H1, ASTM E595	12	0000000	000000

Grease for Electrical Contacts

Lubricate, clean, deoxidize, and prevent corrosion on electrical contacts to improve their performance.

NLGI viscosity grade is a rating of a grease's consistency. NLGI 2 is about the consistency of peanut butter.

Grease with quartz has quartz particles to assist oxide breakup. Grease with copper has copper particles to assist oxidize breakup and resist abrasion on surfaces that require conductivity. Grease with aluminum is for use on aluminum parts that won’t come in contact with each other. Grease with graphite has graphite particles to absorb and dissipate heat. Grease with only deoxidizer provides the best lubrication and is for use on clean surfaces.

Grease lubricates most efficiently within the listed temperature range. Melting temperature is the point at which grease will fail and run out of equipment, leaving it to run dry.

			Container							Each
NLGI Viscosity Grade	Base Oil	Additive	Size, fl. oz.	Net Weight, oz.	Type	Temp. Range, °F	Melting Temp., °F	Dielectric Strength, V/mil	Color		Each
Lithium Thickener
2	Synthetic	Deoxidizer	__	0.1	One-Time-Use Pack	-30° to 200°	285°	115	Amber	0000000	00000
2	Synthetic	Deoxidizer	8	__	Tube	-30° to 200°	285°	115	Amber	000000	00000
2	Synthetic	Deoxidizer, Aluminum	8	__	Tube	-30° to 200°	285°	115	Amber	0000000	00000
2	Synthetic	Deoxidizer, Copper	8	__	Tube	-30° to 200°	285°	115	Amber	0000000	00000
2	Synthetic	Deoxidizer, Graphite	8	__	Tube	-30° to 200°	285°	115	Amber	0000000	00000
2	Synthetic	Deoxidizer, Quartz	8	__	Tube	-30° to 200°	285°	115	Amber	0000000	00000