STI Firestop

SpecSeal LCI300 Intumescent Firestop Sealant | STI FireStop

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STI LCI300 INTUMESCENT FIRESTOP SEALANT

SpecSeal LCI Firestop Sealant is a water-based intumescent sealant intended for a wide range of through-penetration and construction joint applications. SpecSeal LCI Sealant has excellent caulking properties making it easy to apply in vertical applications as well as overhead. LCI Firestop Sealant is versatile and economical intumescent sealant that has excellent caulking properties as well as high build properties on vertical or overhead surfaces.

  • Gun Grade material available in caulk tubes, sausages and pails
  • Tested for use in through-penetration and construction joint configurations
  • Compatible with CPVC Piping
  • Can be sanded and painted to match its surroundings
  • Used in over 500 UL Tested Systems
  • UL® GreenGuard Gold Certified
  • Part Numbers:
    • 10 oz. Caulk Tube = LCI300
    • 20 oz. Sausage Tube = LCI320
    • 29 oz. Tube = LCI329
    • 5 Gallon Pail Bucket = LCI305
Financing Available for orders over $1,000

LCI Firestop SpecSeal Sealant is a water-based intumescent sealant intended for a wide range of through-penetration and construction joint applications. SpecSeal® LCI Sealant has excellent caulking properties making it easy to apply in vertical applications as well as overhead.

Applications:

Blank Opening Blank Opening Bottom of Wall  Bottom of Wall  Busway Busway          
Cables Cables              Cable Tray  Cable Tray         Duct Duct
Floor to Floor Floor to Floor   Floor to Wall  Floor to Wall      Head of Wall Head of Wall 
Metal Pipe Metal Pipe        Multi. Pen.  Multi Pen.          Plastic Pipe Plastic Pipe
Wall to Wall Wall to Wall

SPECIFICATIONS:

Color Red
Density/Weight per Gallon 12.3 lb/gal (1.47 kg/L)
Solids Content by Weight 80.0%
Solids Content by Volume 70.8%
Flame Spread 0*
Smoke Development 0*
Mold & Fungus Growth Rating (ASTM G21) 0
Movement Capabilities 33% Compression Only Class II Coverage For more information on product coverage see the following documents for Linear Joint & Penetration
pH 9
In Service Temperature Less than or equal to 185°F (85°C)
Storage Temperature 40°F (4°C) to 95°F (35°C)
Application Temperature 35°F (2°C) to 100°F (38°C)
STC Rating (ASTM E90-04/ASTM C919) 62 (Relates to Specific Construction)
VOC Content 26 g/L**
Expansion Begins 350°F (177°C)
Average Volume Shrinkage (ASTM C1241) 21.1%
Volume Expansion 10x Free Expansion
Shelf Life From Date of Manufacture 24 months
More Information
SKU STI-LCI
Manufacturer Part Number LCI
Manufacturer STI Firestop
Weight 2lb
Country of Manufacture
Product Sheet (1.06 MB)
Safety Sheet (102.52 kB)
Gun Grade material available in caulk tubes, sausages and pails

Tested for use in through-penetration and construction joint configurations

Compatible with CPVC Piping

Can be sanded and painted to match its surroundings

Used in over 500 UL® Tested Systems