Specified Technologies, Inc. -SIL Silicone Firestop Sealant

SIL Silicone Firestop Sealant

Category: firestopping sealants | penetration firestopping | penetration firestops...

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

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



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SIL Silicone Firestop Sealant

SpecSeal® SIL300 Silicone Sealant is a high performance silicone firestop sealant tested to resist the passage of smoke, flame and water through construction joints and through-penetrations. SIL300 Sealant cures to form a flexible seal and carries a Class 1 W Rating for water resistance (Per ANSI/UL1479).

  • Available in a Gun Grade or Self Leveling
  • Ozone and UV Resistant
  • Excellent recovery from joint extension and compression
  • Listed in over 175 UL® Tested Systems!

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Ordering Information
Item #Case Qty. (min)UPC # 730573DescriptionQty.Weight
SIL30024131010.1 oz. Tube (18.2 Cu. In., 300 ml)11.02 lbs (0.46 kg)
SIL32012132020 oz. Sausage (36 Cu. In., 592 ml)11.8 lbs (0.82 kg)
SIL305n/a13055 gal. Pail (1155 Cu. In.,19.0 L)155 lbs (24.95 kg)
SIL320SL12132220 oz. Sausage (36 Cu. In., 592 ml)11.72 lbs (0.78 kg)
SIL305SLn/a13265 gal. Pail (1155 Cu. In.,19.0 L)153 lbs (24.04 kg)
PropertySIL300 (Non-Sag)SIL300SL (Self-Leveling)
Percent Solids100%85%
VOC, ASTM D236927 g/L< 47 g/L
Tooling Time25-30 minutes25-30 minutes
Tack Free, ASTM C679 (77ºF, 50%RH)3-4 hours50-60 minutes
Sag/Slump, ASTM D22020.1” maxN.A.
Storage Temperature< 80F (27C)< 80F (27C)
Installation Temperature-35ºF to 140ºF (-37ºC to 60ºC)-35ºF to 140ºF (-37ºC to 60ºC)
Shelf Life18 mos18 mos
Storage Warranty Period12 mos12 mos
Weight Per Gallon11.6 lbs/gal11.5 lbs/gal
Viscosity1,200,000 cps25,000 cps
Typical Properties - CuredTypical Properties - CuredTypical Properties - Cured
PropertySIL300 (Non-Sag)SIL300SL (Self-Leveling)
ColorConcrete (limestone)Concrete (limestone)
Hardness, Durometer (Type A Indentor), ASTM D22402426
Ultimate Tensile Strength, ASTM D412341 psi (2.35 MPa)110 psi (0.76 MPa)
Ultimate Elongation, ASTM D412715%600%
Tensile at 100% Elongation, ASTM D41273.2 psi (0.50 MPa)60 psi (0.41 MPa)
Peel Strength (21 day cure @ 77ºF/50 RH), ASTM C79456.6 pli12 pli
Movement Capability
ASTM E1399
± 50%
± 30%
± 50%
± 15%
In Service Temperature-35ºF (-37ºC) to 350ºF (177ºC)-35ºF (-37ºC) to 300ºF (149ºC)
Weathering & U.V. ResistanceExcellentExcellent
Flame Spread Index, ASTM E84 or UL72355
Smoke Developed Index, ASTM E84 or UL7234545
STC Rating61 (Relates to specific construction) (ASTM E 90-04/ASTM C919)61 (Relates to specific construction) (ASTM E 90-04/ASTM C919)