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All Categories > Fire Protection Products > STI Spec Seal  
 

STI Spec Seal


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STI SSS Series Intumescent Sealant

SSS Series Intumescent Sealant

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SpecSeal Series SSS Sealant is a latex based, high solids firestop compound. This material, when properly installed, will effectively seal penetration openings against the spread of fire, smoke, toxic gasses and water. SpecSeal® Series SSS Sealant features STI’s patented and proprietary two-stage intumescent technology. When exposed to high temperatures or fire, this material expands aggressively in a highly directionalized fashion to quickly close off voids left by the burning or melting of combustible materials.
 
SpecSeal Series SSS Sealant’s unique multi-viscosity formula yields a single grade that has excellent caulking properties as well as high build properties on vertical or overhead surfaces. This ...
STI WF 300 Wood Frame Firestop Sealant

WF 300 Wood Frame Firestop Sealant


Type WF300 Caulk is a latex based, high solids firestop caulk. This material, when properly installed, effectively seals penetration openings in wood frame construction against the spread of fire, smoke and combustion byproducts.

Type WF300 Caulk is a single stage intumescent. When exposed to elevated temperatures, WF300 expands rapidly to seal off voids left by the burning or melting of combustible materials.

Type WF300 Caulk is storage stable (when stored according to manufacturer’s recommendations) and will not separate or shrink when dried. WF300 adheres tenaciously to common construction materials such as lumber and gypsum board as well as typical penetrant materials.
STI SSP Putty/ Putty Pads

SSW Intumescent Wrap Strips

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SpecSeal® Wrap Strips are highly flexible, elastomeric strips designed to firestop combustible penetrations in fire-rated floors, floor/ceilings, and walls. Convenient 12’ (3.7 m) rolls, or individually sized strips facilitate installation and minimize waste. Four grades are available to suit the product to the application.

These products utilize STI’s fast responding intumescent technology, providing very responsive and highly directionalized expansion. Rapid expansion provides quick closure for burning combustible penetrants.

When exposed to temperatures in excess of 250° F (121° C), the SpecSeal® Wrap Strip begins to expand (intumesce) rapidly to form a dense, highly insulative char. Free ...
STI Smoke "N" Sounds Acoustical Sealant

Smoke "N" Sound Acoustical Sealant

(3)
SpecSeal® Smoke ‘N’ Sound Sealant is a high quality acrylic latex sealant designed for sealing through-penetrations (such as pipes, conduits, cabling, busways, openings), membrane penetrations (such as p-traps and outlet boxes) in smoke rated walls. SpecSeal Smoke ‘N’ Sound may also be used in linear applications such as wall-to-wall and head-of-wall joints where joints are designed to be either static or minimally dynamic.

SpecSeal® Smoke ‘N’ Sound Sealant is available in a single grade that has excellent caulking properties as well as high build properties on vertical or overhead surfaces. This single grade may be caulked (standard cartridge or bulk loaded), knifed or troweled. In ...
STI Pensil 300 Silicone Sealant

Pensil 300 Silicone Sealant

(2)
Pensil PEN300 Silicone Sealant is a one-part neutral curing silicone sealants exhibiting superior performance in applications where sealing apertures in walls and floors are needed to control the spread of fire, smoke, toxic gasses, and water during fire conditions. Pensil PEN300 Silicone Sealant reacts with atmospheric moisture to form a tough durable seal that will adhere to most building substrates without the use of primers. Pensil products do not contain asbestos or PCBs.

Pensil PEN300 Silicone Sealant is designed for use in Underwriters Laboratories (UL) classified firestop systems. This material can also insulate openings to prevent damage from occasional water spillage and dust penetration in sensitive areas. Pensil PEN300 ...
STI SSP Putty/ Putty Pads

SSP Putty / Putty Pads

(2)
SpecSeal® Series SSP Putty is a non-hardening, intumescent compound designed to seal throughpenetrations as well as certain membrane penetrations against the spread of fire, smoke and toxic gasses. SpecSeal® Putty expands up to eight times its original size when exposed to high temperatures or flames. Requiring no tools, SpecSeal® Series SSP Putty is soft and pliable making it easy to install by hand packing into openings. Its aggressive adhesion makes it suitable for use with all common construction materials as well as cable jacketing and pipes. SpecSeal® Putty remains soft and easy to reuse or retrofit. SpecSeal® Series SSP Putty Pads provide this same level of protection in a release lined pad for easy ...
STI SSM Firestop Mortar

SSM Firestop Mortar

(2)
SpecSeal® Firestop Mortar is an economical, light-weight portland cement-based firestop product. This passive (non-intumescent) material utilizes a combination of heat sinking and insulating properties to provide an extremely high level of fire resistance. SpecSeal® Firestop Mortar mixes with water to form a non shrinking, high yield mortar that may be applied by pouring, pumping, or troweling. Its low density and light weight means that less forming as well as less forming support is required. Its low density also makes re-penetration for retrofitting a simple task. SpecSeal® Firestop Mortar is designed to dry quickly and will not crack or spall due to freezing or changes in temperature. Its adhesion is due to a chemical ...
STI LCI Intumescent Sealant

LCI Intumescent Sealant

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SpecSeal® LCI Sealant is a versatile and economical intumescent product intended for firestopping a wide array of applications in small commercial or grouped residential construction and other structures with similar applications. SpecSeal® LCI Sealant is available in a single grade that has excellent caulking properties as well as high build properties on vertical or overhead surfaces. this single grade may be caulked (standard cartridge or bulk loaded), knifed or troweled. In addition, SpecSeal® LCI Sealant does not contain PCB’s or asbestos. SpecSeal® LCI Sealant is storage stable (when stored according to the manufacturer’s recommendations), and will not separate or shrink when dried. SpecSeal® ...
STI LCC Series Firestop Collars

LCC Series Firestop Collars

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The SpecSeal® Series LCC Collar is a factory-manufactured device designed to protect plastic pipes penetrating fire-rated walls and floors. Utilizing a heavy gauge galvanized metal collar to house a molded intumescent insert, the SpecSeal® Series LCC Firestop Collar is specifically sized to fit 1-1/2˝, 2˝, 3˝, and 4˝ (38mm, 51mm, 76mm and 102 mm) trade sized pipes. When exposed to temperatures in excess of 320°F (160°C), the SpecSeal® Series LCC Collar’s molded insert begins to expand (intumesce) rapidly to form a dense, highly insulative char. Its free expansion ranges from 32-64 times original (pre-expanded) volume. Expansion continues up to 1,000°F (538°C).
STI FyreFlange Firestop Angle

FyreFlange Firestop Angle

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FyreFlange™ Firestop Angles consist of galvanized steel retaining angles with a layer of bonded intumescent material designed to be installed around the perimeter of non-dampered square or rectangular steel ducts. Powder coated red for easy inspection and identification; FyreFlange™ Firestop Angles meet the exacting criteria of ASTM E814 (UL1479). Unlike traditional duct firestopping methods utilizing backer or packing materials, sealants, and angles installed and inspected in stages, FyreFlange™ Firestop Angle can be installed as the duct is installed and inspected just once after the installation is complete. In the event of fire, FyreFlange™ Firestop Angle prevents duct collapse and minimizes deflection. When ...
STI ES Series Elastomeric Sealant

ES Series Elastomeric Sealant

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SpecSeal® Elastomeric Sealant is a non-halogenated latex-based, highly elastomeric caulk designed to provide passive smoke and fire protection in construction joints. This material is also designed to restore sound attenuation properties to sound-rated ceilings and partitions.
SpecSeal® Elastomeric Sealant is engineered to adhere to virtually all construction surfaces and may be applied using standard caulking equipment or by troweling. SpecSeal® Elastomeric Sealant dries to form a flexible shield against the propagation of fire. Its premium latex binder system is totally resistant to water and will not re-emulsify after drying. SpecSeal® Elastomeric Sealant contains no inorganic fibers, asbestos, or solvents.
STI EP Series Power shield electrical box insert

EP Series Power Shield electrical box insert


SpecSeal® Power Shield™ electrical box insert is a one-component pad for use in electrical switch or receptacle boxes. The intumescent insert has been designed to install inside the box, directly against the back wall. SpecSeal® Power Shield™ electrical box insert expands up to 24 times its original size when exposed to high temperatures or flames. Requiring no tools, SpecSeal® Power Shield™ electrical box insert is conveniently sized to fit typical switch or outlet boxes and features an adhesive strip applied to the back of the pad to ensure adhesion to the back of an electrical box. SpecSeal® Power Shield™ electrical box insert is easily applied into an existing box with no mess.
STI Composite Sheet

Composite Sheet

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SpecSeal® Composite Sheet is a lightweight, rigid fire resistant panel consisting of an intumescent layer bonded to a galvanized steel sheet reinforced with steel wire mesh covered with aluminum foil. SpecSeal® Composite Sheet is designed to seal medium to large size openings with a variety of different penetrants in both fire-resistance rated floors and walls.
When exposed to temperatures in excess of 350°F (177°C), SpecSeal® Composite Sheet expands minimum 15x to form a dense insulative char that minimizes heat transfer.
STI SSC Firestopping Collars

SSC Firestopping Collars

(2)
The SpecSeal® Firestop Collar is a factory-manufactured device designed to protect plastic pipes penetrating fire-rated walls and floors. Utilizing a heavy gauge galvanized metal collar to house a molded intumescent insert, the SpecSeal® Collar is specifically sized to fit 1-1/2", 2", 3", 4", and 6" trade sized pipes.

This product utilizes STI’s patented two-stage intumescent technology, providing a very responsive and highly directionalized expansion. Expansion is extremely fast, providing quick closure for burning combustible pipes.

When exposed to temperatures in excess of 250°F (121° C), the SpecSeal® Collar’s molded insert begins to expand (intumesce) rapidly to form a dense, highly ...
AS200 Elastomeric Spray

AS200 Elastomeric Spray


SpecSeal® Elastomeric Spray is a non-halogenated latex-based, highly elastomeric coating designed to provide passive smoke and fire protection in construction joints. SpecSeal® Elastomeric Spray is engineered to adhere to virtually all construction surfaces and may be applied using airless spray equipment or with a brush (for small applications or touch ups).

SpecSeal® Elastomeric Spray dries to form a flexible shield against the propagation of fire. Its premium latex binder system is totally resistant to water and will not re-emulsify after drying. SpecSeal® Elastomeric Spray contains no inorganic fibers, asbestos, solvents.
STI Series SSB Firestop Pillows

Series SSB Firestop Pillows

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SpecSeal Firestop Pillows are through-penetration firestop products resembling small cushions or soft bricks. These intumescent and highly resilient pillows are installed in openings by compressing and stacking into the opening in a brick-like fashion.

SpecSeal Firestop Pillows consist of a mineral fiber core material sealed with a water-resistant intumescent membrane. This coated core material is then heat-sealed in a tough, nonirritating, fireretardant poly bag.