Parcel Orders over $300 Ship Free.
STI SpecSeal SNS120W Smoke N Sound Acoustical 20oz Sausage
High quality acrylic latex sealant designed for sealing through-penetrations (such as pipes, conduits, cabling, busways, openings), membrane penetrations (such as p-traps and outlet boxes) in smoke rated walls.
- Storage stable
- Will not separate or shrink when dried
- Adheres to all common construction materials
$7.76
Availability:
Out of stock
SKU
22972
STI SpecSeal Smoke 'N' Sound Sealant – 20 oz Sausage (White)
SpecSeal Smoke 'N' Sound is a high-quality acrylic latex smoke and acoustical sealant for sealing gaps, penetrations, and linear joints in rated partitions where smoke control and sound reduction are required. It tools easily, bonds to common construction materials, remains flexible, and dries to a water-resistant, paintable finish with low VOC content.
Key Features
- Water-based acrylic latex; easy application and water cleanup.
- Dries water resistant and remains flexible to accommodate movement.
- Helps reduce sound transmission; acoustically tested.
- Excellent adhesion to concrete, masonry, gypsum board, metal, wood, and plastics.
- Paintable when dry; non-halogenated; low VOC.
- Class A surface finish when tested to ASTM E84.
- White color for clean, professional finishes.
Applications
- Smoke control in wall penetrations (pipes, conduit, cable bundles) and membrane openings.
- Linear joints such as head-of-wall, wall-to-wall, and control joints (static or minimally dynamic).
- Noise control where reduced sound transmission through openings is needed.
- Infectious/dust control to limit airborne particulates through wall openings.
Technical Specifications
| Color | White |
| Chemistry | Acrylic latex, smoke and acoustical sealant |
| Solids (by weight / volume) | ~81.8% / ~70.1% |
| Density | ~13.6 lb/gal (1.63 kg/L) |
| VOC Content | ~20 g/L |
| Movement Capability | ±12.5% (material) |
| Flame / Smoke (ASTM E84) | Flame 5; Smoke 0 (Class A surface finish) |
| Acoustic Rating (STC) | STC 62 (relates to specific construction) |
| Application Temperature | 35°F to 100°F (2°C to 38°C) |
| In-Service Temperature | Less than 185°F (85°C) |
| Storage Temperature | 40°F to 95°F (4°C to 35°C) |
| Shelf Life | 24 months in unopened containers (proper storage) |
| Unit Size (this item) | 20 oz sausage (592 mL) |
| Case Quantity / Each Weight | 12 per case / ~2.11 lb each |
Frequently Asked Questions
What is it used for?
Sealing penetrations and linear joints in smoke-rated partitions and for reducing sound transmission through openings.
Is it paintable and water resistant?
Yes. It can be painted when dry and is water resistant after curing.
Is it compatible with plastics?
Designed to be safe with many plastics and cable jackets. Confirm with the penetrant manufacturer for specific materials.
Any electrical precautions?
The wet sealant is conductive until dry. Do not apply near exposed or energized conductors.
Does it provide a fire rating?
It is intended for smoke and sound control. For hourly fire ratings, use listed firestop systems per project requirements.
Please complete your information below to login.