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Identification & Functionality
- Chemical Family
- Product Type
- Technologies
- Product Families
Features & Benefits
- Labeling Claims
- Ready-to-Use Product Features
- Properties
- Autobonding
- Flexible
- Joint Movement
- Low VOC
- Permanent
- Self Leveling
- Silicone
- Smoke Barrier
- STC Rating
- Water Resistant
- Features & Benefits
- Low modulus allows dynamic movement in joints
- Non-halogenated
- Auto bonding allows fresh sealant to adhere to cured sealant
- Excellent water resistance for water-tight sealing; including class 1 W ratings (UL1479)
- Ozone and UV resistant for excellent weathering ability and long service life
- Excellent chemical resistance protects in polluted or corrosive atmospheres
- Excellent adhesion to most building substrates
- Excellent smoke seal
- Neutral cure
- Safe, no asbestos, no PCB’s, no inorganic fibers
- Meets LEEDTM v3, v4, & v4.1 requirements.
- Low emitting materials credit.
- Product Highlights
- SpecSeal® SIL Silicone Firestop Sealant is a one-part, neutral-curing silicone sealant exhibiting superior performance in applications where sealing openings in walls and floors are needed to control the spread of fire, smoke, toxic gasses, and water during fire conditions.
- SpecSeal® SIL Silicone Firestop Sealant reacts with atmospheric moisture to form a high-strength, durable seal that will adhere to most building substrates without the use of primers.
- SpecSeal® products do not contain asbestos or PCBs.
- Systems have been tested for Class 1 W Ratings per UL1479.
- SpecSeal® SIL Silicone Firestop Sealant is available in non-sag (SIL300) and self-leveling (SIL300SL) grades and may also be used to seal vertical and horizontal joints between metals, masonry, concrete and other common construction materials. SpecSeal® SIL Silicone Firestop Sealant is specially designed for use in static or dynamic joints. The low modulus characteristic minimizes strain on the substrate surface and the elastomeric quality allows excellent recovery from extension and compression cycling.
- Features
- 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!
- UL® GreenGuard Gold Certified
Applications & Uses
- Applications
- Application Temperature
- 35 (-37) to 140 (60)
- Applications
SpecSeal® SIL Silicone Firestop Sealant is used to seal both through-penetration firestop systems and joint systems. Representative systems have been tested involving primarily noncombustible penetrants, electrical, data, or telephone cables, construction gaps, expansion joints, curtain wall safing applications, and top-of-wall joints.
Basic Uses : SpecSeal® SIL Silicone Firestop Sealant is designed for use in firestop systems for through penetrations and joints. This product excels in applications where greater water resistance is required.
- Blank Opening
- Bottom of Wall
- Busway
- Cable Tray
- Floor to Floor
- Floor to Wall
- Head of Wall
- Metal Pipe
- Multi. Pen.
- Wall to Wall
- Limitations
This product has been designed to be safe with plastics. It has been used extensively and successfully with various types of plastic pipes, tubes, and plastic cable insulations. Variations in these materials, however, make it impossible to guarantee compatibility. STI strongly recommends that the user consults with the pipe, tubing, or cable manufacturer in question regarding any known sensitivities or potential restrictions before applying this product.
- Maintenance
Inspection : Installations should be inspected periodically for subsequent damage. Any damage should be repaired using SpecSeal® products per the original approved design. Cut away damaged material and reapply sealant as required. 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 all openings as per the requirements of the modified design.
- Application Equipment
Notice : Spray application of SpecSeal® AS200 Spray requires airless spray equipment meeting the following specifications:
- Working Pressure: Min. 2500 PSI (172 Bar)
- Delivery: Min. 0.72 U.S. gpm (2.7 l/min.) recommended
- Spray Tip Orifice: 0.023 in (0.58 mm) to 0.026 in (0.66 mm) recommended
Wetted Parts All seals and contact surfaces suitable for contact with latex emulsions
A minimum 3/8 in (9.5 mm) fluid line is required, a 1/2 in (13 mm) line is preferred. Consult pump manufacturer for long hose runs or lifts to higher elevations. A reversible spray tip is recommended. A 6 in (152 mm) fan pattern is suggested to minimize overspray.
Properties
- Physical Properties
- Cured Properties
- Note
- * Tested to ASTM E84 (UL723) at 14% surface coverage (modified test for sealants and caulks)
- ** Per SCAQMD Rule 1168 (EPA Method 24)
| Value | Units | Test Method / Conditions | |
| Consistency | Trowelable | — | — |
| Density | 11.6 | lbs/gal | — |
| Solids Content (by Weight) | 100.0 | % | — |
| Viscosity | 1200000.0 | cps | — |
| VOC Content** | 20.0 | g/L | — |
| Tooling Time | 25 - 30 | minutes | — |
| Tack Free Time (77ºF, 50% Humidity) | 3 to 4 | hours | ASTM C679 |
| Sag/Slump | max. 0.1 | ” | ASTM D2202 |
| Smoke Developed* | 45.0 | — | — |
| Mold & Fungus Growth Rating | 0.0 | — | ASTM G21 |
| Movement Capabilities | 0 - 100 | % | ASTM C719 |
| Movement Capabilities | 0 - 70 | % | ASTM E1399 |
| In Service Temperature | -35 (-37) to 350 (177) | °F(°C) | — |
| Hardness | 24.0 | Shore A | ASTM D2240 |
| STC Rating (Relates to Specific Construction) | 61.0 | — | ASTM E 90-04/ASTM C919 |
| Weathering & U.V. Resistance | Excellent | — | — |
| Tensile Strength, psi () | 341 (2.35 ) | psi(Mpa) | ASTM D412 |
| Elongation | 715.0 | % | ASTM D412 |
| Tensile (100% Elongation) | 73.2 (0.50) | psi(Mpa) | — |
| Peel Strength (21 day cure at 77ºF/50 RH), | 56.6 | pli | ASTM C794 |
| Value | Units | Test Method / Conditions | |
| Flame Spread* | 5.0 | — | — |
Regulatory & Compliance
- Certifications & Compliance
- Test Standards
- ASTM C920
- ASTM E814 (UL1479)
- ASTM E1966 (UL2079)
- CAN/ULC-S115
- ASTM E119 (UL 263)
- Performance
SpecSeal® SIL Silicone Firestop Sealants are the basis for systems that meet the exacting criteria of ASTM E814 (UL 1479), ASTM E1966 (UL 2079), ASTM E1399, as well as the timetemperature requirements of ASTM E119 (UL 263). Firestop systems for both joint systems and through-penetration firestops have been tested with ratings up to 4 hours. See UL Systems for more specific information. Additionally, SpecSeal® SIL Silicone Firestop Sealant meets ASTM C920, “Standard Specification for Elastomeric Joint Sealants”. For SIL300, the product is listed as Type S, Grade NS, Class 50, Use A, G, M, O. For SIL300SL, the product is listed as Type S, Grade P, Class 25, Use A, G, M, O.
Technical Details & Test Data
- Specifications
The silicone firestop sealant shall be a one-part, neutral-cure meeting the requirements of ASTM C920. The firestop sealant shall be UL Certified and tested to ASTM E814 (UL1479), ASTM E1966 (UL2079), and CAN/ULC-S115. Class 1 W Ratings per UL1479 shall be available for a variety of different firestop systems.
Specified Divisions
Division 7 07 84 13 Penetration Firestopping
Division 7 07 84 43 Joint Firestopping
Division 22 22 00 00 Plumbing Division 23 23 00 00 HVAC Division 26 26 00 00 Electrical
Packaging & Availability
- Availability
Catalog Number UPC Number Size (UOM) Qty. Case Qty. Weight (Each) SIL300 730573013106 10.1 Oz Tube - 18.2 cu in (300 ml) 1 24 1.03 lbs (0.47 kg)
SIL305 730573013052 4.5 Gallon Pail -1,037 cu in (17.0 liters) 1 1 54.43 lbs (24.69 kg)
SIL320 730573013205 20 Oz Sausage - 36 cu in (592 ml) 1 12 1.86 lbs (0.84 kg)
SIL305SL 730573013267 4.5 Gallon Pail - 1,037 cu in (17.0 liters) 1 1 51.89 lbs (23.54 kg)
SIL320SL 730573013229 20 Oz Sausage - 36 cu in (592 ml) 1 12 1.86 lbs (0.84 kg)
Storage & Handling
- Storage Temperature
- max. 80 (27)
- Shelf Life
- 18 months
- Storage and Shelf Life
12 months from date of shipment if stored in original unopened container at 80°F (27°C)