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Air ToolsAsphalt, Concrete & MasonryBathroom PlumbingBrackets and Angle IronsBreakers, Distributors, and Load CentersCaulking & SealantsEmergency SuppliesFastenersFireplacesHand ToolsHome SafetyPaint Supplies & ToolsPower ToolsSafes & LockboxesSealants, Fillers and AdhesivesStorm & Flood PrepTool Equipment & StorageWinter Prep
Fire Putty(21)
Uses item details. Price when purchased online
3M Fire Barrier Putty

2 options
Available in additional 2 options3M Fire Barrier Putty
5 out of 5 stars
3M(TM) Fire Barrier Moldable Putty Stix MP+, 1.45 in x 6 in, 12/case $20.68

$2068
current price $20.683M(TM) Fire Barrier Moldable Putty Stix MP+, 1.45 in x 6 in, 12/case
5 out of 5 stars
Marine Firestop Putty,15.5 oz. Size,Red MPU28 $108.37

$10837
current price $108.37Marine Firestop Putty,15.5 oz. Size,Red MPU28
RECTORSEAL 66335, Fire Rated Putty Pad, 7" x 7", Moldable, Non-Curing, 1pc $15.01

$1501
current price $15.01RECTORSEAL 66335, Fire Rated Putty Pad, 7" x 7", Moldable, Non-Curing, 1pc
Specified Technologies Inc Specseal Ssp Firestop Putty $54.54

$5454
current price $54.54Specified Technologies Inc Specseal Ssp Firestop Putty
T Fire Putty Electrical Pads Barrier Moldable With Disposable Gloves For Sockets Wall Openings Box Water Supply Boxes (20 7-1/2 I From $60.50
From$6050
T Fire Putty Electrical Pads Barrier Moldable With Disposable Gloves For Sockets Wall Openings Box Water Supply Boxes (20 7-1/2 I
3M Fire Barrier Moldable Putty Pads MPP+ Red, 7 in x 7 in Firestop Material $18.00

$1800
current price $18.003M Fire Barrier Moldable Putty Pads MPP+ Red, 7 in x 7 in Firestop Material
UUHYTG Plumbing Sealant Mud - Fast-Drying Hole Plugging Compound for Pipes/Walls - Waterproof Flame Retardant Putty (8-Pack) - Sets in 10 Minutes for Quick Repairs

UUHYTG Plumbing Sealant Mud - Fast-Drying Hole Plugging Compound for Pipes/Walls - Waterproof Flame Retardant Putty (8-Pack) - Sets in 10 Minutes for Quick Repairs
3M Fire Barrier Moldable Putty Pads MPP+, Red, 9.5 in x 9.5 in, 20 pads/case $240.15

$24015
current price $240.153M Fire Barrier Moldable Putty Pads MPP+, Red, 9.5 in x 9.5 in, 20 pads/case
150g Waterproof Wall Hole Sealing Putty, Heat and Flame Resistant Sealant for Sewer Pipe Caulking and Gap Filling in Metal, Rubber and Concrete for Surfaces $12.43

$1243
current price $12.43150g Waterproof Wall Hole Sealing Putty, Heat and Flame Resistant Sealant for Sewer Pipe Caulking and Gap Filling in Metal, Rubber and Concrete for Surfaces
Repair Sealing Clay Waterproof - Moldable Putty Sealant for Wall Holes, Heat Resistant & Flame Retardant, with Cooling Glue, Easy Hand-Moldable Repair for Cracks & Leaks From $7.99

5 options
Available in additional 5 optionsFrom$799
Repair Sealing Clay Waterproof - Moldable Putty Sealant for Wall Holes, Heat Resistant & Flame Retardant, with Cooling Glue, Easy Hand-Moldable Repair for Cracks & Leaks
Sti Fire Barrier Putty Pad,Bar SSP9S $19.36

$1936
current price $19.36Sti Fire Barrier Putty Pad,Bar SSP9S
1 Pack Sealant Mud for Plugging Holes Sewer Sealing White Clogging Putty Flexible Waterproof Crack Filler Multipurpose Repair Compound Indoor Outdoor Use Fast Drying &Flame Retardant $8.49

$849
current price $8.491 Pack Sealant Mud for Plugging Holes Sewer Sealing White Clogging Putty Flexible Waterproof Crack Filler Multipurpose Repair Compound Indoor Outdoor Use Fast Drying &Flame Retardant
Kneadable Multi-Purpose Metal Repair Clay, Heat Resistant Waterproof Bonding Putty for Wood Glass Plastic Broken Parts $9.99

$999
current price $9.99Kneadable Multi-Purpose Metal Repair Clay, Heat Resistant Waterproof Bonding Putty for Wood Glass Plastic Broken Parts
3M Fire Barrier Moldable Putty Pads MPP+, Red, 4 in x 8 in, (10 Each/Carton) 100 Each/Case (Case of 100) SKU 7000059410 $750.23

$75023
current price $750.233M Fire Barrier Moldable Putty Pads MPP+, Red, 4 in x 8 in, (10 Each/Carton) 100 Each/Case (Case of 100) SKU 7000059410
3M Fire Barrier Moldable Putty Stix MP+, Red, 1.4 in x 11 in, 10/case (Case of 10) SKU 7000006381 $289.87

$28987
current price $289.873M Fire Barrier Moldable Putty Stix MP+, Red, 1.4 in x 11 in, 10/case (Case of 10) SKU 7000006381
Specified Technologies Inc Specseal Ssp Putty Pad $15.39

$1539
current price $15.39Specified Technologies Inc Specseal Ssp Putty Pad
Soudal Accumetric 436407 Acryrub Fire Block - Pack of 12 $72.37

$7237
current price $72.37Soudal Accumetric 436407 Acryrub Fire Block - Pack of 12
YiJuHui 1pcs Waterproof Adhesive Sealant for Air Conditioning Holes - Quick-Dry, High-Temp Resistant, Fire Retardant Rubber Putty for Wall Repair, Pipe Gaps, Cracks and Roof Sealing From $2.27

2 options
Available in additional 2 optionsFrom$227
YiJuHui 1pcs Waterproof Adhesive Sealant for Air Conditioning Holes - Quick-Dry, High-Temp Resistant, Fire Retardant Rubber Putty for Wall Repair, Pipe Gaps, Cracks and Roof Sealing
CaiYueKe Wall Hole Repair Sealant, Crack Filler Putty for Drywall, Concrete, Wood, Metal, Pipe, Flexible Waterproof Coating, UV Resistant, Fire Retardant, Quick Dry, Home Maintenance Solution $4.46

$446
current price $4.46CaiYueKe Wall Hole Repair Sealant, Crack Filler Putty for Drywall, Concrete, Wood, Metal, Pipe, Flexible Waterproof Coating, UV Resistant, Fire Retardant, Quick Dry, Home Maintenance Solution
T Fire Putty Electrical Pads Barrier Moldable With Disposable Gloves For Sockets Wall Openings Box Water Supply Boxes (20 7-1/2 I $87.48

$8748
current price $87.48T Fire Putty Electrical Pads Barrier Moldable With Disposable Gloves For Sockets Wall Openings Box Water Supply Boxes (20 7-1/2 I
Other options to consider(195)
High Heat Epoxy Putty Stick, for Manifolds, Tail Pipes, Mufflers and Other High Temperature Projects $9.99 $9.99/count

$999
current price $9.99$9.99/count
High Heat Epoxy Putty Stick, for Manifolds, Tail Pipes, Mufflers and Other High Temperature Projects
4.5 out of 5 stars
Quakehold! 88111 Museum Putty Neutral 2.64 Oz. $11.19

$1119
current price $11.19Quakehold! 88111 Museum Putty Neutral 2.64 Oz.
4.1 out of 5 stars
2026 New Waterproof High Heat Resistant Steel Epoxy Putty, AB Two-Part Fast Repair Filler, Versatile Adhesive for Metal, Plastic, Wood, Tile, Ceramics

2026 New Waterproof High Heat Resistant Steel Epoxy Putty, AB Two-Part Fast Repair Filler, Versatile Adhesive for Metal, Plastic, Wood, Tile, Ceramics
DAP FireBreak Flame Resistant Foam Sealant, Orange, 12 oz (7565010012) $23.52

$2352
current price $23.52DAP FireBreak Flame Resistant Foam Sealant, Orange, 12 oz (7565010012)
3M COMPANY FB 136 10.1OZ Fire Block Caulk $18.40

$1840
current price $18.403M COMPANY FB 136 10.1OZ Fire Block Caulk
5 out of 5 stars
Gardner Gibson 5009-0-61 FlameStopper Flexible Intumescent Sealant, 10.1 oz $20.11

$2011
current price $20.11Gardner Gibson 5009-0-61 FlameStopper Flexible Intumescent Sealant, 10.1 oz
DAP High Heat Fire Resistant Mortar, 10 Oz, Black (7079818854) $14.55

$1455
current price $14.55DAP High Heat Fire Resistant Mortar, 10 Oz, Black (7079818854)
5 out of 5 stars
Durham's 1-Pound Rock Hard Water Putty

Durham's 1-Pound Rock Hard Water Putty
4.7 out of 5 stars
Metacaulk MC 150+ Red 10.3 Oz. Firestop Sealant 66648 $20.14

$2014
current price $20.14Metacaulk MC 150+ Red 10.3 Oz. Firestop Sealant 66648
3M Heat Resistant Fire Block Sealant - Pack of 18

3M Heat Resistant Fire Block Sealant - Pack of 18
Steel Reinforced Epoxy Putty, Waterproof Heat Resistant AB Filler(White) From $6.28

3 options
Available in additional 3 optionsFrom$628
Steel Reinforced Epoxy Putty, Waterproof Heat Resistant AB Filler(White)
10-pack J-B Weld HighHeat Epoxy Putty Stick - High Temperature-Resistant - 10 Pack, 2 oz Residential Use, Standard Application $77.35

$7735
current price $77.3510-pack J-B Weld HighHeat Epoxy Putty Stick - High Temperature-Resistant - 10 Pack, 2 oz Residential Use, Standard Application
3M Heat Resistant Fire Block Sealant - Pack of 3 $58.26

$5826
current price $58.263M Heat Resistant Fire Block Sealant - Pack of 3
Steel Reinforced Epoxy Putty, Epoxy Putty Repair Clay, 2 Part Waterproof Repair Kit, Heat Resistant Bonding Compound for Metal Wood Tile Ceramic and Household Repairs From $11.81

2 options
Available in additional 2 optionsFrom$1181
Steel Reinforced Epoxy Putty, Epoxy Putty Repair Clay, 2 Part Waterproof Repair Kit, Heat Resistant Bonding Compound for Metal Wood Tile Ceramic and Household Repairs
3.3 out of 5 stars
3M Heat Resistant Fire Block Sealant - Pack of 16 $294.84

$29484
current price $294.843M Heat Resistant Fire Block Sealant - Pack of 16
Hotspot Fire Cement 310ml Black $12.50

$1250
current price $12.50Hotspot Fire Cement 310ml Black
FAQ
What is fire putty used for?
Fire putty is designed to help seal gaps, holes, and penetrations in walls, floors, and ceilings, especially around pipes, cables, and ducts. Its main purpose is to slow the spread of fire, smoke, and heat by creating a fire-resistant barrier.
- It's often used in construction and home improvement projects.
- It can be applied to areas where fire safety is a concern, like around electrical boxes or plumbing.
- Some types are also waterproof and suitable for sealing leaks.
How do I apply fire putty?
Applying fire putty is pretty straightforward, but it's important to use the right technique.
- Start by cleaning the area to remove dust and debris.
- Knead or mold the putty as needed, depending on the product type.
- Press the putty firmly into the gap, crack, or hole you want to seal.
- Smooth it out with your fingers or a tool for a tight fit.
Can fire putty be used outdoors?
Some fire putty products are suitable for outdoor use, especially those labeled as waterproof and weather-resistant.
- Check the product specifications to confirm if it's designed for exterior applications.
- Outdoor fire putty can help seal gaps in walls, roofs, or around pipes exposed to the elements.
- It's important to ensure the putty is applied to a clean, dry surface for best adhesion.
Is fire putty safe around electrical wires?
Fire putty is commonly used to seal around electrical wires and boxes because it's formulated to resist heat and flame.
- It's important to use products specifically rated for electrical applications.
- Always turn off power before working near electrical components.
- Follow the instructions on the packaging to avoid any safety risks.
How long does fire putty take to set?
The setting time for fire putty varies depending on the product and environmental conditions.
- Some fast-drying formulas set in as little as 10 minutes, while others may take longer.
- Factors like temperature, humidity, and thickness of application can affect drying time.
- Always check the manufacturer's instructions for specific guidance.
Popular in Fire Putty for Home Improvement Projects
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