Boiler Adhesives | McMaster-Carr

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21 Products

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

Extreme-Temperature Gasket Makers in Cartridges

These gasket makers form a tight seal on furnace doors, exhaust systems, stoves, and other high-temperature applications. They are fire resistant and resist most acids, solvents, and corrosives. Use cartridges with a standard caulk gun for quick and easy dispensing. Gasket makers are used in place of rubber, cork, and other traditional gasket materials for a form-in-place seal and to make it easy to form irregular-shaped gaskets.

Container					Temperature, ° F
Size, fl. oz.	Type	Max. Gap Size Filled	Begins to Harden, min.	Reaches Full Strength, hr.	Min.	Max.	Color	For Use On		Each
11	Cartridge	0.125"	20	72	Not Rated	2,300	Gray	Aluminum, Brass, Bronze, Copper, Steel, Stainless Steel, Cast Iron, Titanium, Ceramic	7549A15	000000
11	Cartridge	0.25"	20	72	-300	2,300	Gray	Aluminum, Brass, Bronze, Copper, Steel, Stainless Steel, Cast Iron, Titanium, Ceramic	7549A11	00000

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

Flame-Retardant High-Temperature Gasket Makers

Often used to create gaskets in ovens and applications where fire is a concern, these gasket makers meet UL 94 V-0 for flame retardance and withstand temperatures up to 500° F. They replace rubber and other traditional gasket materials for a form-in-place seal and make it easy to form irregular-shaped gaskets. Push the plunger to precisely dispense small amounts.

Container						Temperature, ° F
Size, fl. oz.	Type	Max. Gap Size Filled	Begins to Harden, min.	Reaches Full Strength, min.	Cure Type	Min.	Max.	Color	For Use On		Each
1.700	Syringe	0.250"	5	30	Room Temperature	-70	500	Green	Aluminum, Copper, Steel, Stainless Steel, Titanium, Ceramic	4485N11	0000000

Extreme-Temperature Gasket Makers

Use these gasket makers to form a tight seal on furnace doors, exhaust systems, stoves, and other high-temperature applications. They are fire resistant and resist most acids, solvents, and corrosives. They are used in place of rubber, cork, and other traditional gasket materials for a form-in-place seal and they make it easy to form irregular-shaped gaskets.

Container					Temperature, ° F
Net Wt., lb.	Type	Max. Gap Size Filled	Begins to Harden, min.	Reaches Full Strength, hr.	Min.	Max.	Color	For Use On		Each
1	Jar	0.125"	20	72	Not Rated	2,300	Gray	Aluminum, Brass, Bronze, Copper, Steel, Stainless Steel, Cast Iron, Titanium, Ceramic	7549A16	000000
3 1/2	Jar	0.25"	20	72	-300	2,300	Gray	Aluminum, Brass, Bronze, Copper, Steel, Stainless Steel, Cast Iron, Titanium, Ceramic	7549A12	000000
7	Jar	0.25"	20	72	-300	2,300	Gray	Aluminum, Brass, Bronze, Copper, Steel, Stainless Steel, Cast Iron, Titanium, Ceramic	7549A14	000000