Fire & Smoke Sealants

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3M 1000 NS Fire Barrier Sealant, Light Gray, 10.1 oz Package, Cartridge

We formulated 3M™ fire barrier watertight sealant 1000 NS as a single component, neutral cure, silicone sealant. This ready-to-use sealant cures upon exposure to atmospheric humidity to form a flexible firestop seal that helps control the spread of fire, smoke and noxious gases before, during and after exposure to fire. When properly installed, this watertight sealant provides up to 3 hrs protection in tested and listed systems and meets UL water leakage test, W Rating - Class 1 requirements for systems tested and listed in accordance with ANSI/UL 1479. We designed this non-slump firestop sealant as a re-enterable and repairable solution primarily used on vertical surfaces.
$19.99

3M CP-25WB+10.1OZ Fire Barrier Sealant, Red, 40 to 122 deg F, 10.1 oz Package, Cartridge

We formulated this fire sealant to dry and form a monolithic firestop seal that also acts as a barrier to airborne sound transmission. 3M™ Fire Barrier Sealant CP 25WB+ is a red, one-component, gun-grade, latex-based, intumescent firestop sealant. This fire barrier sealant helps control the spread of fire, smoke and noxious gases before, during and after exposure to a fire.
$12.99

3M CP-25WB+27OZ Fire Barrier Sealant, Red, 40 to 122 deg F, 27 oz Package, Cartridge

We formulated this fire sealant to dry and form a monolithic firestop seal that also acts as a barrier to airborne sound transmission. 3M™ Fire Barrier Sealant CP 25WB+ is a red, one-component, gun-grade, latex-based, intumescent firestop sealant. This fire barrier sealant helps control the spread of fire, smoke and noxious gases before, during and after exposure to a fire.
$44.99

3M FB 136 Fire Block Sealant, Gray, 10.1 oz Package, Cartridge

3M™ Fire block sealant FB 136, a one component, water-based, non-combustible draft, smoke and fireblocking sealant designed to resist high temperatures and smoke passage in non-rated construction.
$7.99

3M FD 150+ Blue Fire Barrier Sealant, Blue, 40 to 122 deg F, 10.1 oz Package, Cartridge

Our 3M™ Fire Barrier Sealant FD 150+ is a gun-grade, latex-based, elastomeric sealant that cures upon exposure to the atmosphere to form a monolithic flexible firestop seal. When properly installed, this sealant helps control the spread of fire, smoke and noxious gasses before, during and after exposure to a fire and exhibits excellent adhesion to a full range of construction substrates.
$14.99

3M IC 15WB+ Fire Barrier Sealant, Yellow, 40 to 122 deg F, 10.1 oz Package, Cartridge

Engineered to form a monolithic seal after drying, 3M™ Fire Barrier Sealant IC 15WB+ is a yellow, one-part, gun-grade, intumescent firestop sealant that provides up to 3 hr fire protection in tested and listed systems. This helps prevent the spread of fire, smoke and noxious gas, while also acting as an acoustic barrier to help minimize noise transfer.
$11.99

3M Stix MP+ Fire Barrier Putty Stix, Red

3M™ Fire Barrier Moldable Putty Stix MP+ is a one-part, re-enterable, intumescent putty that can be easily formed to firestop through penetrations and blank openings in fire-rated assemblies. We formulated this dark red, easily moldable putty stick to provide up to 4 hrs of fire protection. These putty stix also produce a draft and cold smoke seal and help reduce noise transfer.
$22.99

DAP Fire Stop 18806 Silicone Sealant, Limestone Gray, 40 to 110 deg F, 10.1 oz Package, Cartridge

DAP® Fire Stop is a single component, neutral cure, gun-grade silicone firestopping sealant. It is an elastomeric, high performance sealant capable of meeting the joint movement requirements in a fire-rated joint. Fire Stop is tested for up to a 4-hr fire-resistance-rated system at independent laboratories and is approved for both through penetrations and joint applications.
$18.99

Dow 306179 Fire Block Foam Sealant, Orange, 12 oz Package, Aerosol Can

Impedes the spread of fire and smoke through service penetrations. Recognized as an alternative fireblocking material for residential construction with three floors or less. Tested according to ASTM E84, ATM E814 (modified), UL1715. Bright orange foam for easy code identification. Seals service penetrations between floors and electrical runs through wall studs. Airtight water-resistant seal. Superior adhesion to building materials. Tack free in 6 mins, trims in 30 mins. Cures rigid in 8 hrs. One can equals up to 19 tubes of caulk, all direction dispensing, UL Classified.
$7.59

JACO FIRESTOP 50011 Firestop Caulk, Red, 212 deg F, 10.5 oz Package, Tube

A commercial quality fire proof caulk. Forms a durable bond to all common building materials. Rated for 3000 deg, Non-toxic. Zero VOC's. Accepted by the Green Building Council. Approved by the Energy Star Program and certified by UL.
$9.95

Metacaulk 1000 Series 66640 Firestop Sealant, Red, 40 to 120 deg F, 10.3 oz Package, Cartridge

One component, general purpose fire rated sealant and smoke seal for construction joints and through-penetrations. Extremely intumescent, non-sag caulking grade sealant. Cures to an elastomeric seal that is suitable where dynamic movement is expected. 10.3 oz covers about 18 cu-in.
$12.99

Metacaulk MC 150+ Series 66648 Firestop Sealant, Red, 40 to 120 deg F, 10.3 oz Package, Cartridge

Metacaulk® MC 150+ is an elastomeric, one-component, general-purpose, fire-rated sealant and smoke seal for construction joints and through-penetrations. A water-based, non-sag caulking grade sealant that is easy to apply as well as to retrofit. Can be applied to horizontal and vertical surfaces. Cures to a paintable flexible seal. Suitable for areas of dynamic movement. Application temperature 40 to 120 deg F. An economic choice for most common applications. Sound Transmission Class (STC) rating 65, The test was performed in accordance with ASTM E90, Standard Test Method for Laboratory Measurement of Airborne Sound Transmission Loss of Building Partitions.
$7.99

Metacaulk RS 136 Series 66408 Fire Block/Smoke Seal Caulk, Red, 40 to 100 deg F, 10.3 oz Package, Cartridge

RS 136 Draft stop/fire block caulk is a general-purpose, residential, acoustical fireblock/smoke seal caulk for electrical, plumbing, plastic pipe and telephone communication systems penetrations. Easy application with a conventional caulking gun with water cleanup capabilities.
$8.69

OSI 1390035 Fire Smoke and Draft Stop Sealant, Brick Red, 45 to 90 deg F, 10 oz Package, Cartridge

OSI FlameSeal® fire, smoke and draft stop sealant is a non-flammable, latex-based fire stopping sealant. This one component sealant is designed for use in both residential and commercial fire stopping applications. Developed to seal service penetrations and joints in fire separations and firewalls, it prevents the passage of flame, smoke and fumes under actual fire conditions of 1 hr, 2 hr and 3 hr fire resistance rated systems. It improves STC values and upgrades sound quality. OSI FlameSeal® utilizes a special waterborne technology that is both non-flammable and non-hazardous and cleans up easily with water. Cured product is also mold-and mildew-resistant.
$9.99

Red Devil Foam & Fill 0915 Fire Block Foam Sealant with Nozzle, Champagne, 41 to 86 deg F, 12 oz Package

Fire Block is a ready to use polyurethane expanding foam for filling, insulating and sealing gaps, cracks and openings in buildings' interior and exterior.
$9.99

Touch 'n Foam Fire Break 4004501212 Flame Resistant Sealant, Amber, 60 to 100 deg F, 12 oz Package, Can

Touch ‘n Foam® FireBreak® is an easy-to-use fire block foam sealant that's ideal for DIY-ers and small contractor jobs. Independent testing confirms that FireBreak resists flaming twice as long as the competition and prohibits oxygen flow into service penetrations where fire may quickly spread. Using FireBreak in these penetrations slows the fire taking it longer to move to adjoining rooms, giving one valuable time to get to safety. FireBreak is bright orange and can be easily identified as an approved fire block penetration sealant.
$10.99

WHITE LIGHTNING FLAME BUSTER W44117010 Silicone Sealant, Red, -20 to 122 deg F, 10 oz Package, Cartridge

White Lightning® FLAME BUSTER® fire & smoke blocking silicone sealant is designed to block the spread of smoke and fire. It forms a water-resistant seal that will also resist smoke and toxic gases, ultraviolet radiation and ozone.
$14.99
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