LC Endothermic Firestop Sealant - 29 oz. LC129

SpecSeal® Series LC 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.

Series LC is engineered to adhere well to virtually all construction surfaces and may be applied using a standard caulk gun or by troweling with a standard mason’s trowel or with a putty knife.

Series LC dries without shrinking 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 Series LC Sealant is non-halogenated, contains no asbestos, inorganic fibers or solvents.

• Installer Friendly, easily applied with standard caulking gun
• Can be troweled on for larger applications
• Tested for up to 4 Hours of fire resistance when tested to ASTM E1966/UL2079, ASTM E814/UL1479, and CAN/ULC-S115
• Listed in over 80 UL^® Tested Firestop Systems!

FIRE CAULK

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• Water-Based Easy installation, cleanup, and disposal.
• Endothermic Fillers Absorb heat & release water.
• High Solids Formula No shrinkage!
• Paintable Paintable (when dry)
• Safe ... No Solvents! Non-Halogenated! Low VOC’s
• Red Color Easy identification and inspection.
• Installer Friendly Excellent caulking properties along with high build
capabilities.
• Excellent Smoke Seal
• Flexible
SERIES LC ENDOTHERMIC SEALANT
PRODUCT DESCRIPTION
SpecSeal® Series LC Sealant is a latex-based, high solids firestop compound. This material, when
properly installed, will effectively seal penetration openings and joints against the spread of fire,
smoke, toxic gasses and water.
SpecSeal® Series LC Sealant is engineered to adhere well to virtually all construction surfaces and
may be applied using a standard caulk gun or by troweling with a standard mason’s trowel or with
a putty knife.
SpecSeal® Series LC Sealant dries without shrinking 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® Series LC Sealant is non-halogenated, contains no asbestos, inorganic fibers
or solvents.
SpecSeal® Series LC Sealant is the basis for systems that meet the exacting criteria of ASTM E1966 (UL2079) and CAN/ULCS115 as well as the time-temperature
requirements of ASTM E119. Tested systems will provide up to a 3 hour rating utilizing as little as 1/4" (6 mm) of sealant depth (1/2" (13 mm) for 4 hours). All tested
systems have been cycled 500 times at total movement up to +/- 12.5% or 25% in compression only.
PERFORMANCE
PHYSICAL PROPERTIES
Properties Series LC
Color Red
Odor Mild Latex
Density 11.4 lb./gal.
Solids Content by Weight 80%
Solids Content by Volume 74.3%
pH 7.4-8.4
In Service Temperature ≤185˚ F (<85˚ C)
Storage Temperature 40˚F (4˚C) - 95˚F (35˚C)
Flame Spread 0*
Smoke Developed 10*
Movement +/- 12.5% or 25% in compression only****
STC Rating 61
(Relates to specific construction)
(ASTM E 90-04/ASTM C919)
VOC Content
(EPA Method 24/ASTM D3960)
0.50 lb/gal (60 g/liter)
Shelf Life 2 Years
FEATURE BENEFIT
PRODUCT DATA SHEET
SpecSeal® LC Endothermic Sealant
Fill, Void or Cavity Material CERTIFIED FOR USE IN
JOINT-SYSTEMS & THROUGH-PENETRATION FIRESTOP
SYSTEMS SEE UL ONLINE CERTIFICATIONS DIRECTORY.
SPECIFICATIONS
The firestopping sealant shall be a one-part, latex-based compound. The
sealant shall dry to form a flexible non-shrinking penetration seal and shall
be capable of allowing pipe movement and shall contain no solvents, water
soluble fillers, or inorganic fibers. The sealant shall be thixotropic and shall
be capable of caulking or troweling onto vertical surfaces or overhead. The
sealant shall be UL Classified and tested to the requirements of ASTM E814
(UL1479) and CAN/ULCS115.
SPECIFIED DIVISIONS
DIV. 7 07840 Through-Penetration Firestopping
DIV. 13 13900 Special Construction Fire Suppression & Supervisory
Systems
DIV. 15 15250 Mechanical Insulation – Fire Protection
DIV. 16 16050 Basic Electrical Materials & Methods
APPLICATIONS
SpecSeal® Series LC Sealant is designed primarily
for sealing construction joints and gaps as well as
penetrations for noncombustible penetrants. SpecSeal
Series LC has been tested and approved for single
metallic pipe penetrations up to 30" (762 mm) as well
as multiple penetrants through both masonry and
gypsum wallboard constructions. Additional systems
have been tested for steel sleeved penetrations as well
as some common electrical and communications cable
penetrations and joint penetrations. See STI’s Product
& Application Guide as well as the UL Fire Resistance
Directory for complete listings.
STI Product Data Sheet • Series LC Endothermic Sealant • FOD-5130 1586
*ASTM E84 (UL723) @ 14% Surface coverage. (Modified test for sealants and caulks.)
****500 Cycles per UL2079, AC30 (ICBO) and ASTM E1399
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INSTALLATION INSTRUCTIONS
GENERAL: Areas to be protected must be clean and free of oil, loose dirt, rust or scale. Installation temperatures must be between 35°F (2°C) and 100°F
(38°C). Allow product to dry a minimum of 24 hours before exposure to moisture.
SYSTEM SELECTION: Consult UL® Fire Resistance Directory, STI Product & Application Guide, or drawings provided by the manufacturer for specific details
concerning installation design and requirements.
FORMING: Some installations may require forming as either an integral part of the system or as an option to facilitate installation. In systems where forming is
required, mineral wool batting (3" (76 mm) nom. thickness, min. 4 lb./cu. ft. (64 kg/m3) density) is recommended. Mineral wool is to be highly compressed and
friction fitted into the opening. Position forming or packing material to allow for the proper depth of fill material.
INSTALLATION OF FILL MATERIAL: SpecSeal® Series LC sealant may be installed by caulking using a standard caulking gun or from bulk containers using a
bulk loading caulk gun, or by manually troweling using a mason’s trowel or putty knife. If the sealant tends to pull back from a surface, clean the surface with a
damp rag or sponge and reapply. Install sealant to required depth. Work sealant into all areas exercising care to eliminate voids or seams. The surface of the
sealant can be smoothed using a putty knife dipped in water. Adding water to the sealant itself is not recommended. Sealant (when dry) may be sanded and
painted using most non-solvent based paints. In gypsum wallboard penetrations, crown sealant a minimum of 1/4" (6 mm) from penetrant to wallboard surface
at a point approx. 1/2" (13 mm) or more from opening.
COVER PLATE: In some designs a galvanized steel cover plate (28 gauge) may be used to upgrade the fire resistance rating to 4 hours. Consult STI Product
and Application Guide for dimensional and fastening requirements.
LIMITATIONS: SpecSeal® Series LC Sealant is water-based and cures through the evaporation of water. Low temperatures as well as high humidity may retard
drying. Non-porous or impermeable backing materials, plates or coatings may retard the drying process. Do not paint or seal in any way that prevents contact
with air until sealant has dried through completely.
MAINTENANCE
Inspection: Installations should be inspected periodically for subsequent damage. Any damage should be repaired using SpecSeal® Series LC Sealant as per
the original approved design. Retrofit: When adding or removing penetrants, care should be taken to minimize damage to the seal. Reseal using SpecSeal®
Series LC Sealant as per the approved design. NOTE: New penetrants of a different nature than the original design may require a totally new firestop design or
extensive modifications to the existing design. Reseal openings as per the requirements of the modified design.
TECHNICAL SERVICE
Specified Technologies Inc. provides toll free technical support to assist in product selection and appropriate installation design. UL Systems, Material Safety
Data Sheets and other technical information is available at the Technical Library at www.stifirestop.com.
PRECAUTIONARY INFORMATION
Consult Material Safety Data Sheet for additional information on the safe handling and disposal of this material. Wash areas of skin contact with soap
and water. Avoid contact with eyes. The use of an OSHA or NIOSH approved mask for dust and mist environment is recommended. Apply in areas with
adequate ventilation.
CAUTION: COATING IS CONDUCTIVE UNTIL DRY. DO NOT APPLY TO OR IN THE PRESENCE OF ENERGIZED ELECTRICAL CONDUCTORS.
AVAILABILITY
SpecSeal® Series LC Sealant is available from authorized distributors worldwide. Consult factory for names and locations of the nearest sales
representatives or distributors.
Cat. No. Description Packaging Size
LC150 Endothermic Firestop Sealant 10.1 oz. Tube 18.2 cu in. (300 ml)
LC120 Endothermic Firestop Sealant 20 oz. Sausage 36 cu. in. (592 ml)
LC129 Endothermic Firestop Sealant 29 oz. Tube 52 cu. in. (858 ml)
LC155 Endothermic Firestop Sealant 5 gal. Pail 1,155 cu. in. (19 liters)
IMPORTANT NOTICE: All statements, technical information, and recommendations contained herein are based upon testing believed to be reliable, but the accuracy and completeness thereof is
not guaranteed.
LIMITED WARRANTY: STI warrants that its products will be free of defects for one year from the date of purchase. In the event a product does not conform to this warranty, the sole and
exclusive remedy is, at STI’s option, replacement of the product or refund of the purchase price. The warranty provided herein shall be void and of no effect in the event that the product is
not installed in accordance with STI’s published instructions, listed systems and applicable building and safety codes. THIS WARRANTY IS IN LIEU OF ALL OTHER REPRESENTATIONS
AND EXPRESSED OR IMPLIED WARRANTIES (including the implied warranties of merchantability or fitness for a particular use) AND UNDER NO CIRCUMSTANCES SHALL STI BE
LIABLE FOR ANY DIRECT, INDIRECT, SPECIAL, INCIDENTAL OR CONSEQUENTIAL DAMAGES OR LOSSES, INCLUDING, WITHOUT LIMITATION, ANY LOSS OF REVENUE,
PROFIT OR USE. Prior to use, the user shall determine the suitability of the product for its intended use, and the user assumes all risks and liability for subsequent use. No person other
than an officer of STI is authorized to bind STI to any other warranty for any product for which this warranty is issued.
MADE IN THE USA – COPYRIGHT © 2016 SPECIFIED TECHNOLOGIES INC.
CITY OF NEW YORK MEA 129-96-M
STI Product Data Sheet • Series LC Endothermic Sealant • FOD-5130 1586
Somerville NJ 08876 USA • Phone: 800.992.1180 • Fax: 908.526.9623