Refractory Sealants | McMaster-Carr

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5 Products

Extreme-Temperature Refractory Cement

$Image of Product. Front orientation. Refractory Cement. Extreme-Temperature Refractory Cement.$

Set and repair cast iron and steel furnaces, heaters, stoves, and boilers with this ready-to-use cement. It experiences minimal shrinkage for a permanent smokeproof and gasproof joint. Apply with a trowel or a spatula. A minimum temperature of 212° F is required to harden. Cut hardened cement with a carbide-tipped saw.

Container
Size	Type	Approx. Coverage Area, ft²	Cure Temp., ° F	Max. Temp., ° F	Density, lb/ft³	Color		Each
8 fl. oz.	Pail	0.63	212	2,500	122	Beige	9372K85	00000
64 fl. oz.	Pail	5	212	2,500	122	Beige	9372K86	00000
1 gal.	Pail	10	212	2,500	122	Beige	9372K87	00000

Firebrick Bonding Mortar

$Image of Product. Front orientation. Refractory Cement. Firebrick Bonding Mortar.$

Lay, coat, and bond firebricks. Apply this mortar with a trowel. One pail sets approximately 40 bricks.

Container Net Wt., lb.	Container Type	Approx. Brick Coverage	Max. Temp., ° F	Density, lb/ft³	Color		Each
15	Pail	40	3,000	129	Gray	9368K6	000000

Firebrick Repair Coatings

Renew heat resistance and performance of worn firebrick. Apply coating with a brush or spray on for a crack-free seal.

Container Size, gal.	Approx. Coverage Area, ft²	Temp. Range, ° F	Density, lb/ft³	Color		Each
1	93	-50 to 2,350	100	Beige	9366K5	0000000