Thermocouple Adhesives | McMaster-Carr

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For Joining

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Type

Material

Mixing Required

Color

RoHS

Viscosity

10,000 cP to 29,999 cP

30,000 cP to 99,999 cP

100,000 cP to 189,999 cP

190,000 cP or greater

REACH

Begins to Harden

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Manufacturer Model Number

U.S.–Mexico–Canada Agreement (USMCA) Qualifying

Yes

Export Control Classification Number (ECCN)

EAR99

DFARS Specialty Metals

Container Size

38 Products

High-Temperature Instant-Bond Adhesives

Our most heat-resistant adhesives keep a strong grip at temperatures up to 480° F.

Apply an accelerator first to reach a full-strength bond faster.

Thin Liquid—Seep into narrow gaps and joints that thick-liquid adhesives can't reach. Use when bonding close-fitting parts.

Thick Liquid—Fill larger gaps than thin-liquid adhesives, so they're better for bonding slightly misaligned or uneven surfaces.

Mil. Spec.—Manufactured and tested to meet strict U.S. military standards for performance and reliability.

		Container
	Mfr. Model No.	Size, fl. oz.	Type	Begins to Harden, sec.	Reaches Full Strength, hr.	Heating Req. to Reach Full Strength	Cure Type	Consistency	Viscosity, cP	Max. Gap Size Filled	Temp. Range, ° F	Specs. Met	For Joining		Each
Permabond



		820	1	Bottle	10	24	—	Room Temperature	Thin Liquid	100	0.006"	-65 to 390	—	Composite, Metal, Plastic, Rubber	7585A41	000000


		920	1	Bottle	10	6	4 Hrs. Air Dry Then 2 Hrs. @ 305°F	Heat, Room Temperature	Thin Liquid	80	0.006"	-65 to 480	MIL-A-46050 Type V Class 2	Composite, Metal, Plastic, Rubber	7585A42	00000
		922	1	Bottle	10	6	4 Hrs. Air Dry Then 2 Hrs. @ 305°F	Heat, Room Temperature	Thick Liquid	1,600	0.017"	-65 to 480	MIL-A-46050 Type V Class 3	Composite, Metal, Plastic, Rubber	7585A44	00000

Conductive Adhesives for Electronics

An alternative to solder, these flexible, silver-filled adhesives accommodate joint movement. Use them to bond electrical components and repair circuits.

Epoxy


Single-Use Packet and Syringe	Single-Use Packet	Can

Epoxy adhesives are two-part adhesives that need to be mixed together. The size listed is the combined total of the two parts.

ASTM E595—Adhesives that meet ASTM E595, a standard used by NASA, produce almost no volatile emissions that could damage sensitive electronics, even in a vacuum.

		Container
	Mfr. Model No.	Size, fl. oz.	Net Wt., oz.	Type	Surface Resistivity	Begins to Harden	Reaches Full Strength	Thermal Conductivity, W/(m⋅°C)	Mix Ratio	Consistency	Max. Temp., ° F	Specs. Met	For Joining		Each
Loctite®



		2902	—	0.09	Single-Use Packet, Syringe	1× 10^-3Ω⋅cm	60 min.	24 hr.	2.99	100:6	Paste	230	ASTM E595	Ceramic, Glass, Metal	7595A113	000000


		2902	—	0.35	Single-Use Packet, Syringe	1× 10^-3Ω⋅cm	60 min.	24 hr.	2.99	100:6	Paste	230	ASTM E595	Ceramic, Glass, Metal	7595A114	000000


		Other Conductive Adhesives



				—	—	0.09	Single-Use Packet	5× 10^-2Ω⋅cm	3 hr.	24 hr.	1.55	1:1.15	Paste	230	—	Ceramic, Glass, Metal	7661A13	00000


				—	0.5	—	Can	4× 10^-4Ω⋅cm	4 hr.	5 day	7.93	1:1	Paste	265	—	Metal	7595A33	000000
				—	0.5	—	Can	9× 10^-5Ω⋅cm	4 hr.	5 day	7.9	1:1	Paste	175	ASTM E595	Ceramic, Glass, Metal	7595A111	000000
				—	1	—	Can	4× 10^-4Ω⋅cm	4 hr.	5 day	7.93	1:1	Paste	265	—	Metal	7595A34	000000
				—	1	—	Can	9× 10^-5Ω⋅cm	4 hr.	5 day	7.9	1:1	Paste	175	ASTM E595	Ceramic, Glass, Metal	7595A112	000000

Plastic

Strip with Adhesive on

One Side

Plastic adhesives are one-part adhesives that don’t need to be mixed. Dry to the touch and faster and easier to apply than two-part adhesives, they’re best for use on automated assembly lines. Often used to join solar cells in solar panels, these adhesives make instant electrical connections without flux at lower temperatures than soldering. Since they attach to solar cells with heat and slight pressure, they limit stress cracks that can form when soldering. These adhesives can also be used as a bridge between multiple solar panels.

	Wd.	Thk.	Melting Temp., ° F	Max. Temp., ° F	Surface Resistivity	Begins to Harden, sec.	Reaches Full Strength, sec.	Thermal Conductivity, W/(m⋅°C)	Consistency	For Joining		Each
Strip with Adhesive on One Side



	12"	1/16"	0.002"	250	300	1× 10^-4Ω⋅cm	5	5	12	Film	Metal	7661A111	00000

High-Temperature Gasket Sealants


Cartridge	Tube

Even in high temperatures, these sealants maintain their strength.

Container
Size, fl. oz.	Type	Begins to Harden, min.	Reaches Full Strength, hr.	Max. Temp., ° F	Color	For Use On		Each



	2.3	Tube	30	24	2,000	Black	Cast Iron, Fiberglass, Steel	7573A29	00000


	2.3	Tube	60	3	2,000	Black	Aluminum, Brass, Bronze, Cast Iron, Copper, Fiberglass, Masonry, Stainless Steel, Steel, Titanium	7573A63	00000
	10.3	Cartridge	30	24	2,000	Black	Cast Iron, Fiberglass, Steel	7573A31	00000
	10.3	Cartridge	60	3	2,000	Black	Aluminum, Brass, Bronze, Cast Iron, Copper, Fiberglass, Masonry, Stainless Steel, Steel, Titanium	7573A65	00000

Ceramic Adhesives

Often used for bonding and repair on exhaust systems, diesel engines, and gas turbines, these adhesives withstand high temperatures and provide excellent electrical insulation.

Thick Liquid—Thick liquids flow into small spaces and are easy to spread.

Paste—Pastes will not drip or sag while hardening on a vertical surface.

Container
Size, fl. oz.	Type	Begins to Harden, min.	Reaches Full Strength, hr.	Thermal Conductivity, W/(m⋅°C)	Consistency	Viscosity, cP	Max. Temp., ° F	Color	For Joining		Each
8	Pail	20	48	0.865	Thick Liquid	90,000	2,300	Gray	Ceramic, Metal	7482A11	000000
8	Pail	20	48	0.865	Paste	130,000	2,300	Gray	Ceramic, Metal	7482A21	00000
8	Pail	20	48	0.865	Paste	190,000	2,300	Gray	Ceramic, Metal	7482A31	00000
16	Pail	15	24	1.44	Thick Liquid	22,500	4,000	Beige	Ceramic, Masonry	7564A11	000000
32	Pail	15	24	1.44	Thick Liquid	22,500	4,000	Beige	Ceramic, Masonry	7564A12	000000
32	Pail	20	24	0.288	Thick Liquid	35,000	2,300	White	Ceramic	7563A29	000000
64	Pail	20	48	0.865	Paste	130,000	2,300	Gray	Ceramic, Metal	7482A22	000000
64	Pail	20	48	0.865	Paste	190,000	2,300	Gray	Ceramic, Metal	7482A32	000000

High-Temperature Surface Fillers


Ceramic Pail	Ceramic Cartridge	Ceramic Syringe

Able to withstand temperatures up to 2300° F, these ceramic surface fillers are often used as thermal insulation on brick, mortar, burner blocks, furnace holders, and thermocouples.

	Container									Temp. Range
	Size	Type	Begins to Harden, min.	Reaches Full Strength, hr.	Consistency	Mixing Req.	Approx. Coverage @ Thk.	Max. Thk.	For Use Outdoors	Min.	Max., ° F	Color	For Use On		Each
Ceramic Surface Fillers



		4 fl. oz.	Syringe	20	8	Putty	No	20 in² @ 1/4"	Not Rated	No	Not Rated	2,300	White	Ceramic, Masonry	7551A23	000000


		11 fl. oz.	Cartridge	20	8	Putty	No	60 in² @ 1/4"	Not Rated	No	Not Rated	2,300	White	Ceramic, Masonry	7551A24	00000
		1 gal.	Pail	20	8	Putty	No	720 in² @ 1/4"	Not Rated	No	Not Rated	2,300	White	Ceramic, Masonry	7551A26	000000

High-Temperature Wicking Instant-Bond Adhesives

Create secure bonds between installed parts at temperatures up to 480° F. Our thinnest adhesives use capillary action to pull themselves deep into close-fitting seams—like water up the roots of a tree.

Apply an accelerator first to reach a full-strength bond faster.

Thin Liquid—Seep into narrow gaps and joints that thick-liquid adhesives can't reach. Use when bonding close-fitting parts.

Mil. Spec.—Manufactured and tested to meet strict U.S. military standards for performance and reliability.

		Container
	Mfr. Model No.	Size, fl. oz.	Type	Begins to Harden, sec.	Reaches Full Strength, hr.	Heating Req. to Reach Full Strength	Cure Type	Consistency	Viscosity, cP	Max. Gap Size Filled	Temp. Range, ° F	Specs. Met	For Joining		Each
Permabond



		919	1	Bottle	10	6	4 Hrs. Air Dry Then 2 Hrs. @ 305°F	Heat, Room Temperature	Thin Liquid	4	0.002"	-65 to 480	MIL-A-46050 Type V Class 1	Composite, Metal, Plastic, Rubber	7585A43	000000

Conductive Surface Fillers for Electronics


Epoxy Jar	Single-Use Packet

A high silver content allows these surface fillers to conduct electricity and heat. Use them to fill gaps and rebuild missing material on electrical connections or to assemble new components. They come as two parts. The size listed is the combined total of the two parts.

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

Electrical Volume Resistivity—Electrical volume resistivity measures how well a material opposes the flow of electricity. The lower the rating, the more electricity it conducts.

		Container												Temp. Range, ° F
	Mfr. Model No.	Size, fl. oz.	Net Wt., oz.	Type	Begins to Harden	Reaches Full Strength	Consistency	Mixing Req.	Thermal Conductivity, W/(m⋅°C)	Electrical Volume Resistivity	Mix Ratio	Max. Thk.	For Use Outdoors	Min.	Max.	Color	For Use On		Each
Loctite® Surface Fillers



		3888	—	0.09	Single-Use Packet	90 min.	24 hr.	Paste	Yes	1.44	0.001Ω⋅cm	100:6	1/4"	Yes	-40	170	Silver	Aluminum, Brass, Bronze, Copper, Steel, Stainless Steel, Titanium, Polycarbonate	7366A55	000000


		Surface Fillers



				—	—	0.09	Single-Use Packet	90 min.	24 hr.	Paste	Yes	6.05	0.009Ω⋅cm	100:6	1/4"	Yes	-75	250	Silver	Aluminum, Brass, Bronze, Copper, Steel, Stainless Steel, Titanium, Ceramic, Glass	7661A11	00000


				—	—	0.35	Single-Use Packet	90 min.	24 hr.	Paste	Yes	6.05	0.009Ω⋅cm	100:6	1/4"	Yes	-75	250	Silver	Aluminum, Brass, Bronze, Copper, Steel, Stainless Steel, Titanium, Ceramic, Glass	7661A12	000000
				—	0.5	—	Jar	4 hr.	5 day	Paste	Yes	5.77	0.0004Ω⋅cm	1:1	Not Rated	No	Not Rated	300	Silver	Aluminum, Brass, Copper, Steel, Stainless Steel	7595A31	000000
				—	1	—	Jar	4 hr.	5 day	Paste	Yes	5.77	0.0004Ω⋅cm	1:1	Not Rated	No	Not Rated	300	Silver	Aluminum, Brass, Copper, Steel, Stainless Steel	7595A32	000000

Conductive Surface Filler Pens for Electronics

Acrylic Plastic

Epoxy

Dispense ready-to-use conductive liquid to fill pits and small gaps on circuit board components. These pens are also used to sketch and repair conductive pathways.

Carbon Filled—Carbon acrylic plastic pens should be used where only a small amount of conductivity is needed, such as circuit boards in keyboards. Their high surface resistivity only allows a small current to pass.

Nickel Filled—Nickel acrylic plastic pens are best for general purpose repairs, such as bridges and traces in printed circuit boards. They have a medium surface resistivity, so they're a good balance between carbon acrylic and silver epoxy pens.

Silver Filled—Silver epoxy pens are the most versatile—use them for any type of repair as well as for repairs that require excellent conductivity, such as connecting through holes on circuit boards without adding jumpers, wiring, or solder. Since they have the lowest surface resistivity, they allow the most current to pass.

Cannot Be Sold To—Product labeling requirements restrict sales to the listed areas.

	Container		Tip										Temp. Range, ° F
	Size, fl. oz.	Type	Dia.	Shape	Begins to Harden, min.	Reaches Full Strength	Surface Resistivity, ohm/sq.	Consistency	Mixing Req.	Thermal Conductivity	Max. Thk.	For Use Outdoors	Min.	Max.	Color	For Use On	Cannot Be Sold To		Each
Carbon Acrylic Plastic



		0.2	Pen	0.06"	Point	2	24 hr.	100	Thin Liquid	No	Not Rated	0.003"	Yes	-40	245	Black	Plastic	Canada	7502N11	000000


		Nickel Acrylic Plastic



				0.2	Pen	0.06"	Point	2	24 hr.	0.49	Thin Liquid	No	Not Rated	0.004"	Yes	-40	245	Gray	Plastic	Canada	7502N12	00000


				Silver Epoxy



						0.2	Pen	0.03"	Point	3	60 min.	0.050	Thin Liquid	No	Not Rated	Not Rated	No	-65	300	Silver	Aluminum, Brass, Bronze, Copper, Steel, Stainless Steel, Titanium	Outside United States and Canada	7365A44	00000

High-Temperature Glue


Bottle	Pail

This high-temperature glue sticks quickly, but can be repositioned for up to 2 hours before it begins to harden. Glue can be applied and allowed to dry, then reactivated with water when ready for bonding.

Cannot Be Sold to Canada—Glue cannot be sold to Canada due to import regulations.

Container					Temp., ° F
Size	Type	Begins to Harden, hr.	Reaches Full Strength, hr.	Consistency	Min.	Max.	Color	For Joining	Cannot Be Sold To		Each



	32 fl. oz.	Bottle	2	12	Thick Liquid	-30	500	Beige	Cardboard, Fabric, Glass, Metal, Wood	Canada	7466A7	000000


	1 gal.	Pail	2	12	Thick Liquid	-30	500	Beige	Cardboard, Fabric, Glass, Metal, Wood	Canada	7466A8	000000
	5 gal.	Pail	2	12	Thick Liquid	-30	500	Beige	Cardboard, Fabric, Glass, Metal, Wood	Canada	7466A9	000000