Contact Cleaners | McMaster-Carr

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65 Products

Electrical Parts Cleaners for Contacts

Less harsh than general purpose electrical cleaners, these cleaners are suitable for the delicate contacts in electronics and printed circuit boards. They remove oxidation and corrosion from metal surfaces, giving your components long-lasting protection and reducing connection failures.

Pens

Pens have a round tip that can be used to precisely clean delicate contacts. They also contain an additive that improves conductivity. These pens are small enough to fit in your toolbox or carry in your pocket.

		Tip							Each
	Container Size, fl. oz.	Shape	Dia.	Harshness	For Use On	For Removing	Temp. Range, ° F		1-11	12-Up
Nonflammable



		0.20	Round	5/64"	Mild	Aluminum, Chrome, Copper, Gold, Nickel, Plastic, Stainless Steel, Steel, Tin, Galvanized Steel	Dirt, Grease, Oil	-29 to 392	7437K112	000000	000000

Aerosol Cans

NSF Registered K2 and NSF Registered P1—Cleaners that are NSF registered K2 or NSF registered P1 can be used in food-processing environments.

Flip-Up Straw—Aerosol cans with a flip-up straw have a straw that’s attached to the nozzle so it won’t get lost. Raise it for precision dispensing; lower it for storage or to dispense cleaner as a spray.

Cannot Be Sold To—Product labeling requirements and/or PFAS regulations restrict sales to the listed jurisdictions/areas.

												Each
	Solvent Power, Kb	Container Net Wt., oz.	Harshness	For Use On	For Removing	Temp. Range, ° F	Food Industry Std.	Mil. Spec.	Features	Cannot Be Sold To		1-11	12-Up
Flammable (Solvent Based)



		26	11	Moderate	Aluminum, Ceramic, Chrome, Galvanized Steel, Plastic, Rubber, Stainless Steel, Steel	Dirt, Grease, Oil	—	NSF Registered P1	—	—	Outside United States	7437K38	000000	000000


		27	13 1/2	Moderate	Aluminum, Ceramic, Chrome, Galvanized Steel, Plastic, Rubber, Stainless Steel, Steel	Dirt, Flux, Grease, Oil	32 to 120	—	—	—	Outside United States	7437K49	00000	00000
		50	10	Mild	Aluminum, Ceramic, Chrome, Galvanized Steel, Plastic, Rubber, Stainless Steel, Steel	Dirt, Flux, Grease, Oil	32 to 120	—	—	—	Outside United States	7437K48	00000	00000
		250	11	Harsh	Aluminum, Ceramic, Chrome, Galvanized Steel, Plastic, Stainless Steel, Steel	Dirt, Flux, Grease, Oil	0 to 100	NSF Registered K2	—	Flip-Up Straw	Outside United States	7437K676	00000	0000


		Nonflammable (Solvent Based)



				26	12	Moderate	Aluminum, Ceramic, Chrome, Galvanized Steel, Rubber, Stainless Steel, Steel	Dirt, Flux, Grease, Oil	32 to 120	—	—	—	Colorado, Maine, Minnesota, Outside United States and Canada	7437K77	00000	00000


				38	12	Mild	Aluminum, Ceramic, Chrome, Galvanized Steel, Plastic, Rubber, Stainless Steel, Steel	Dirt, Flux, Grease, Oil	32 to 120	—	MIL-PRF-29608 Class C	—	Colorado, Maine, Minnesota, Outside United States and Canada	7437K52	00000	00000
				97	18	Moderate	Aluminum, Ceramic, Chrome, Galvanized Steel, Plastic, Rubber, Stainless Steel, Steel	Dirt, Grease, Oil	40 to 120	NSF Registered K2	—	—	California, Colorado, Maine, Minnesota, Outside United States	7437K11	00000	00000
				128	20	Moderate	Aluminum, Brass, Bronze, Ceramic, Chrome, Copper, Galvanized Steel, Plastic, Rubber, Stainless Steel, Steel	Dirt, Dust, Wax	50 to 110	NSF Registered K2	—	—	Colorado, Maine, Minnesota, Outside United States and Canada	7437K231	00000	00000

General Purpose Electrical Parts Cleaners

Eliminate dirt, oil, and grease buildup in electrical equipment such as relays, switches, and cables.

Cannot Be Sold To—Product regulations restrict sales to the listed jurisdictions/areas.

										Each		Package
	Solvent Power, Kb	Container Net Wt., oz.	Harshness	For Use On	For Removing	Temp. Range, ° F	Dielectric Strength, V/mil	Mil. Spec.	Cannot Be Sold To		Each	Pkg. Qty.		Pkg.
Aerosol Cans—Flammable (Solvent Based)



		50	10	Mild	Aluminum, Ceramic, Chrome, Galvanized Steel, Plastic, Rubber, Stainless Steel, Steel	Dirt, Dust, Grease, Oil	32 to 120	24,000	—	Outside United States and Canada	7437K63	000000	12	7437K814	0000000


		Aerosol Cans—Nonflammable (Solvent Based)



				40	12	Moderate	Aluminum, Ceramic, Chrome, Galvanized Steel, Plastic, Rubber, Stainless Steel, Steel	Dirt, Dust, Grease, Oil	32 to 120	31,000	MIL-PRF-29608 Class C	Colorado, Maine, Minnesota, Outside United States and Canada	7437K57	00000	12	7437K812	000000


				120	12	Moderate	Aluminum, Ceramic, Chrome, Galvanized Steel, Stainless Steel, Steel	Adhesive, Dirt, Dust, Flux, Grease, Oil	32 to 120	15,000	—	Outside United States and Canada	7437K84	00000	12	7437K811	000000

General Purpose Electrical Parts Cleaners and Sealant

Designed to be used together to improve the performance of electrical connections, cleaners remove oxidation and corrosion on connections while sealants coat them to prevent oxidation and corrosion.

Cleaners


Aerosol Can	Squeeze Bottle

Cleaners provide long-lasting protection for all metal surfaces.

	Container
	Size, fl. oz.	Net Wt., oz.	Harshness	For Use On	For Removing	Temp. Range, ° F		Each
Aerosol Cans—Flammable (Solvent Based)



		—	5	Harsh	Aluminum, Brass, Bronze, Ceramic, Chrome, Copper, Galvanized Steel, Plastic, Stainless Steel, Steel	Dirt, Grease, Oil	-29 to 392	8381T11	000000


		Aerosol Cans—Nonflammable (Solvent Based)



				—	5 3/4	Mild	Aluminum, Brass, Bronze, Ceramic, Chrome, Copper, Galvanized Steel, Plastic, Stainless Steel, Steel	Dirt, Grease, Oil	-29 to 392	8381T12	00000


				Squeeze Bottles—Nonflammable (Solvent Based)



						0.85	—	Moderate	Aluminum, Brass, Bronze, Ceramic, Chrome, Copper, Galvanized Steel, Plastic, Stainless Steel, Steel	Dirt, Grease, Oil	-29 to 392	8381T13	00000

Sealants for Metal Surfaces


Aerosol Can	Squeeze Bottle

Sealants for metal surfaces protect electrical contacts and connections in high humidity, corrosive, and salty environments.

	Container
	Size, fl. oz.	Net Wt., oz.	Harshness	For Use On	Temp. Range, ° F		Each
Aerosol Cans—Nonflammable (Solvent Based)



		—	5 3/4	Mild	Aluminum, Brass, Bronze, Ceramic, Chrome, Copper, Galvanized Steel, Plastic, Stainless Steel, Steel	-29 to 410	8381T25	000000


		Squeeze Bottles—Nonflammable (Solvent Based)



				0.85	—	Moderate	Aluminum, Brass, Bronze, Ceramic, Chrome, Copper, Galvanized Steel, Plastic, Stainless Steel, Steel	-29 to 410	8381T16	00000

Sealants for Gold Surfaces


Aerosol Can	Squeeze Bottle

Sealants for gold surfaces improve conductivity and provide lasting protection.

	Container
	Size, fl. oz.	Net Wt., oz.	Harshness	For Use On	Temp. Range, ° F		Each
Aerosol Cans—Flammable (Solvent Based)



		—	5	Harsh	Aluminum, Brass, Bronze, Ceramic, Chrome, Copper, Galvanized Steel, Plastic, Stainless Steel, Steel	-49 to 464	8381T17	000000


		Aerosol Cans—Nonflammable (Solvent Based)



				—	5 3/4	Moderate	Aluminum, Brass, Bronze, Ceramic, Chrome, Copper, Galvanized Steel, Plastic, Stainless Steel, Steel	-49 to 464	8381T18	00000


				Squeeze Bottles—Nonflammable (Solvent Based)



						0.85	—	Moderate	Aluminum, Brass, Bronze, Ceramic, Chrome, Copper, Galvanized Steel, Plastic, Stainless Steel, Steel	-49 to 464	8381T19	00000

Kits

Kits come with cleaner, sealant for gold surfaces, and lubricant for metal surfaces. The lubricant restores lubrication that's been lost from cleaning. These kits also include cloths, brushes, and swabs for application.

	Each



Equipment Cleaner (2 oz. Spray Bottle); Screen Cleaner (2 oz. Spray Bottle); Sealant for Gold Surfaces (.25 oz. Applicator-Top Bottle, 3 Wipes); Lubricant for Metal Surfaces (2 fl. oz. Aerosol Can, 3 Wipes); Application Brushes; Application Cloths; Application Swabs; Case	8381T23	000000

Pocket-Size Electrical Contact Files

A pen-shaped holder stores six files. Use to clean contacts on electrical components such as spark plugs, switches, relays, and ignition points.

Rods are used for cleaning pits on contacts.

Files										Replacement Files		Replacement Rods
		File			Handle			Fine Grit (220 Grit)
Abrasive Material	No. of Files	Lg.	Wd.	Thk.	Lg.	Material	Includes		Each		Each		Each
Steel	6	1 1/2"	3/16"	0.004"	4 1/2"	Plastic	Six 1 1/4" Length × 0.02" Diameter Rods	4575A73	000000	———	0	4575A87	00000
Steel	6	1 1/2"	3/16"	0.007"	4 1/2"	Plastic	—	4575A71	00000	4575A85	00000	———	0

Electrical Contact Files

Clean contacts on electrical components such as spark plugs, switches, relays, and ignition points.

Files with Tungsten-Coated Teeth


	Double-Cut Face

Files with tungsten-coated teeth are best for hard materials commonly found on ignition points and high-amperage electrical contacts, such as tungsten and iridium. They are double cut—two sets of diagonal teeth remove material rapidly.

							Fine Grit
Lg.	Wd.	Thk.	Face Tooth Style	Edge Tooth Style	For Use On	Material		Each
5 1/4"	5/16"	0.044"	Double Cut	Without Teeth	Titanium, Hardened Steel, Tool Steel, Nickel, Ceramic, Stone, Glass, Carbide, Carbon Fiber, Graphite	Steel	4275A2	00000

Files with Diamond Abrasive Grit

Files with diamond abrasive grit clean contacts with a minimal amount of pressure. The sharpest and hardest abrasive we offer, diamond smooths any material. It’s especially good for delicate tasks where you need to remove very little material at a time.

						Medium Grit (120-150 Grit)		Extra-Fine Grit (240-320 Grit)
Abrasive Lg.	Lg.	Wd.	Thk.	For Use On	Material		Each		Each
3/4"	4 9/16"	3/16"	0.015"	Titanium, Hardened Steel, Tool Steel, Nickel, Ceramic, Stone, Glass, Carbide, Carbon Fiber, Graphite	Steel	4275A106	000000	4275A105	000000

Flexible Electrical Contact Files

Bend and twist these files to clean contacts in hard-to-reach spots. Use on electrical components such as spark plugs, switches, relays, and ignition points.

					Each		Package
	Lg.	Wd.	Thk.	Abrasive Material		Each	Pkg. Qty.		Pkg.
Medium Grit (80 Grit)



		4 3/4"	3/8"	0.04"	Aluminum Oxide	4610A28	00000	12	4610A61	000000


		4 3/4"	1/2"	0.04"	Aluminum Oxide	4610A11	0000	12	4610A49	00000


		Medium Grit (120 Grit)



				4 3/4"	3/8"	0.025"	Aluminum Oxide	4610A12	0000	12	4610A51	00000


				4 3/4"	1/2"	0.04"	Aluminum Oxide	4610A17	0000	12	4610A55	00000
				4 3/4"	7/8"	0.03"	Aluminum Oxide	4610A24	0000	12	4610A58	00000


				Fine Grit (180 Grit)



						4 3/4"	3/8"	0.04"	Aluminum Oxide	4610A29	0000	12	4610A62	00000


						4 3/4"	1/2"	0.025"	Aluminum Oxide	4610A13	0000	12	4610A52	00000
						4 3/4"	1/2"	0.04"	Aluminum Oxide	4610A19	0000	12	4610A56	00000
						4 3/4"	7/8"	0.03"	Aluminum Oxide	4610A25	0000	12	4610A59	00000


						Extra-Fine Grit (240 Grit)



								4 3/4"	3/8"	0.025"	Aluminum Oxide	4610A14	0000	12	4610A53	00000


								4 3/4"	3/8"	0.04"	Aluminum Oxide	4610A31	0000	12	4610A63	00000


								Extra-Fine Grit (320 Grit)



										4 3/4"	3/8"	0.015"	Aluminum Oxide	4610A15	0000	12	4610A54	00000


										4 3/4"	3/8"	0.025"	Aluminum Oxide	4610A22	0000	12	4610A57	00000
										4 3/4"	3/8"	0.04"	Aluminum Oxide	4610A33	0000	12	4610A64	00000

Thin-Face Electrical Contact Files

The spatula-like end lets you access contacts in tight spaces. Use on electrical components such as spark plugs, switches, relays, and ignition points. The diamond abrasive cleans the contacts with a minimal amount of pressure while removing very little metal.

							Fine Grit (150 Grit)
Abrasive Material	Diamond Surface Lg.	Lg.	Wd.	Thk.	Overall Lg.	Handle Material		Each
Diamond	0.875"	7/8"	1/4"	1/16"	5 5/8"	Plastic	6304T11	0000000

Electrical Parts Cleaners for Fiber Optic Connectors

Clean plugs or adapters on fiber-optic cords. These handheld cleaners remove dust, dirt, and grime with a lint-free fabric so cords can send data without disruptions caused by debris.

For Plugs—Plastic Case

Cleaners with a plastic case have a cleaning window for wiping debris off of plugs. Slide the cleaner to feed a fresh piece of cleaning fabric across the window.

Ht.	Wd.	Dp.	Useful Life	Cloth Material	For Removing		Each



FC, LC, MU, SC, ST	3 1/2"	2 5/8"	1 1/8"	500 Cleanings	Microfiber	Dirt, Dust	5423N15	000000

For Plugs and Bulkhead Adapters—Plastic Handle

Cleaners with a plastic handle have a cleaning tip for plugs and adapters. Flip open the cap to clean a plug, or remove the cap to clean a recessed adapter. Click the tool to push the cleaning fabric through the tip—each click pushes through a fresh cleaning surface. They also have an extendable nozzle, which lengthens them by an extra 1.5 in. to clean deep ports or crowded panels.

	For Ferrule Size, mm	Lg.	Useful Life	Cloth Material	For Removing		Each
Straight Head with Extendable Nozzle



	FC, SC, ST	2.5	9"	800 Cleanings	Microfiber	Dirt, Dust	5423N12	000000


	LC, MU	1.25	9"	800 Cleanings	Microfiber	Dirt, Dust	5423N11	00000

Nylon Mesh Quick-Change Sanding Discs for Grounding Contact Points

Sanding Disc

Arbor

Image of Specification. Front orientation. TS. Discs, Surface Conditioning.

Ensure clean connections by removing paint, primer, and other contaminants from electrical grounding contact points. These discs mount to your tool with an arbor, also known as a mandrel (sold separately). The arbor’s tip pokes through the disc and fits into a drilled hole in the center of your contact point. As you sand, the tip acts as a guide to keep your tool from slipping out of the contact. Also known as non-woven or surface-conditioning discs, they're made of flexible nylon mesh to resist clogging and produce a consistent finish, even with uneven sanding pressure.

Aluminum Oxide Abrasive—The most versatile and affordable abrasive we offer. Aluminum oxide is the go-to choice for general purpose sanding.

Nylon Mesh Grade—Use coarser grade discs for heavy cleaning, stripping, and deburring. Finer grades remove material more slowly, so they're best for gentle cleaning, blending, and finishing.

	Sanding Discs									Arbors with 1/4" Shank Dia.
	Dia.	Abrasive Material	Mfr. Equiv. Model	For Use On	Color	Nylon Mesh Grade	Pkg. Qty.		Pkg.		Each
TS Style Quick-Change Connector







				For Smooth Finish

				5/8"	Aluminum Oxide	3M TSM, Norton Speed-Lok TS, Standard Abrasive SocAtt	Aluminum, Copper, Steel	Maroon	Medium	10	8183N11	000000	8183N12	000000