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Specified Technologies, Inc. -LC Endothermic Firestop Sealant

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WF300 Intumescent Firestop Caulk is a latex-based firestop caulk designed for residential wood frame construction. WF300 Caulk is tested for addressing penetrations through wood/frame construction such as wood stud walls and floor/ceiling assemblies.


Category: fire stopping | fire-resistant sealants | joint firestopping...

MasterFormat: Penetration Firestopping | Joint Firestopping | Joint Protection...


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Specified Technologies, Inc.
210 Evans Way
Somerville, NJ 08876
Tel: (800) 992-1180
Fax: (908) 526-9623

customerservice@stifirestop.com

https://www.stifirestop.com/

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Overview


LC Endothermic Firestop Sealant

WF300 Intumescent Firestop Caulk is a latex-based firestop caulk designed for residential wood frame construction. WF300 Caulk is tested for addressing penetrations through wood/frame construction such as wood stud walls and floor/ceiling assemblies. Under fire exposure, WF300 expands to up to four times its original volume.

Features

  • Installer friendly, easily applies with standard caulking gun
  • Suitable for combustible and non-combustible penetrants
  • Tested for up to 3 Hours of fire exposure when tested to ASTM E814/UL1479
  • UL® GreenGuard Gold Certified


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Specifications

Physical Properties
PropertyValue
ColorRed
Density/Weight per Gallon10.2 lbs/gal (1.22 kg/L)
Solids Content by Weight81%
Solids Content by Volume77.6%
Flame Spread0*
Smoke Development20*
CoverageFor more information on product coverage see the following documents for Linear Joint & Penetration
pH7.4 to 8.4
In Service TemperatureLess than 185°F (85°C)
Storage Temperature40°F (4°C) to 95°F (35°C)
Application Temperature35°F (2°C) to 100°F (38°C)
STC Rating (ASTM E90-04/ASTM C919)61 (Relates to Specific Construction)
VOC Content53 g/L**
Expansion Begins350°F (176°C)
Average Volume Shrinkage (ASTM C1241)23.5%
Volume Expansion5x Free Expansion
Shelf Life From Date of Manufacture24 months
Ordering Information
Catalog NumberUPC NumberDescription
WF31073057309710610.1 Oz. Tube - 18.2 cu. in. (300 ml)
WF32073057309720520 Oz. Sausage - 36 cu. in. (592 ml)
WF3057305730970525 Gallon Pail - 1,155 cu. in. (19.0 liters)