Fire Stop Sealants | McMaster-Carr

	Color Color

	Red		Gray
	Light Red		White

	Container Type Container Type

	Fire-Stop Type Fire-Stop Type

	Expanding Expanding

Yes

	Capacity Capacity

	Fire Rating Fire Rating

3 hrs.

4 hrs.

	DFARS (Defense Acquisition Regulations Supplement) DFARS (Defense Acquisition Regulations Supplement)

DFARS Specialty Metals
COTS-Exempt

	Specifications Met Specifications Met

	Maximum Application Temperature Maximum Application Temperature

	Minimum Application Temperature Minimum Application Temperature

	Thickness Thickness

	Form Form

Pad

Stick

	Length Length

	Width Width

7/16"

1 1/2"

	For Joining For Joining

	Fire Safety Rating Fire Safety Rating

45 min.

90 min.

	For Use On For Use On

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16 Products

About Sealant Flexibility

Cartridge

Pail

This caulk forms a long-lasting, flexible, watertight seal. Use it to close small openings in fire-resistant walls and floors. Dispense cartridges using a caulk gun.

Container	Application Temperature, ° F	Color	Fire Rating, hrs.	Specifications Met		Each
10.2 oz. Cartridge	-20° to 120°	Gray	3	UL 1479	00000000	000000
28.7 oz. Cartridge	40° to 110°	Red	3	UL 1479, UL 2079	00000000	00000
4.5 gal. Pail	-35° to 140°	Gray	4	UL 1479, UL 2079	00000000	000000

Paintable Fire-Stop Caulk

Cartridge

Pail

Seal small openings in fire-resistant walls and floors. Dispense cartridges using a caulk gun.

Expanding caulk expands when heated to fill voids left by melted pipes.

Caulk
Container	Application Temperature, ° F	Color	Fire Rating, hrs.	Specifications Met		Each
10.1 oz. Cartridge	40° to 122°	Red	3	UL 1479, UL 2079	0000000	00000
28 oz. Cartridge	40° to 122°	Red	3	UL 1479, UL 2079	0000000	00000
Expanding Caulk
10.3 oz. Cartridge	40° to 120°	Red	4	UL 723, UL 1479, UL 2079	00000000	00000
30 oz. Cartridge	40° to 120°	Red	4	UL 723, UL 1479, UL 2079	00000000	00000
5 gal. Pail	40° to 120°	Red	4	UL 723, UL 1479, UL 2079	00000000	000000

Fire-Stop Putty

Pad

Stick

Hand-mold this putty to fill small openings in fire-resistant walls and floors. It expands when heated and forms an insulating char that fills gaps left by melted pipes.

The pad is commonly used to seal openings around electrical boxes.

Form	Lg.	Wd.	Thick.	Color	Application Temperature, °F	Fire Rating, hrs.	Specifications Met		Each
Pad	7"	7"	1/8"	Red	40° to 120°	3	UL 1479, UL 263	0000000	00000
Stick	10"	1 1/2"	1 1/2"	Red	40° to 120°	3	UL 1479	0000000	00000

Fire-Stop Cement

Good for sealing large openings in fire-resistant walls and floors. Mix this lightweight powder with water to create a thick paste that's easy to apply.

Weight, lbs.	Color	Application Temperature, °F	Fire Rating, hrs.	Specifications Met		Each
45	Light Red	40° to 275°	4	UL 1479	00000000	0000000

Fire-Stop Bags

Stack these bags to fill large gaps in fire-resistant walls and floors. They are reconfigurable, making them useful for applications where cable configurations change frequently. Bags expand when heated to fill gaps left by melted cables.

Thick.	Lg.	Wd.	Color	Fire Rating, hrs.	Specifications Met		Each
2"	9"	6"	Red	4	UL 1479, FM Approved	00000000	000000
3"	9"	6"	Red	4	UL 1479, FM Approved	00000000	00000

Fire-Rated Glass Sealing Tape

Seal glass windows in metal and wood fire-rated doors. Also known as glazing tape, it has an adhesive back with a peel-off liner.

Fire Safety
Rating, min.	Standard	Wd.	Lg., ft.	Tensile Strength, psi	Hardness	Application Temp. Range, °F	Max. Temp., °F	For Joining	Color		Each
Aluminum
3/64" Thick.
45	UL 10C	7/16"	8	230	Not Rated	10° to 155°	1800°	Metal Metal to Glass Glass Wood	White	0000000	000000
45	UL 10C	7/16"	14	230	Not Rated	10° to 155°	1800°	Metal Metal to Glass Glass Wood	White	0000000	00000
5/64" Thick.
90	UL 10C	7/16"	16	230	Not Rated	10° to 155°	1800°	Metal Metal to Glass Glass	White	000000000	00000

About Sealant Flexibility