STI Firestop SNS Smoke ‘N’ Sound Acoustical Spray


  • Economical – high performance without the high price
  • Water resistant – will not re-emulsify when dry
  • Water-based – easy installation, cleanup, and disposal
  • Thixotropic – offers high build application
  • Acoustically tested – reduces noise transmission
  • UL® GreenGuard Gold Certified

Out of stock

SKU: SNS205 Category: Tag:

SpecSeal Smoke ‘N’ Sound spray is a high quality acrylic latex spray designed for static or minimally dynamic linear joints or gaps. SpecSeal Smoke ‘N’ Sound spray is formulated to adhere to all common construction surfaces and may be applied using airless spray equipment or with a brush (for small applications and touch ups).

Physical Properties

Density/Weight per Gallon10.7 lb/gal (1.28 kg/L)
Solids Content by Weight73.5%
Solids Content by Volume66.2%
Flame Spread5**
Smoke Development0**
Mold & Fungus Growth Rating (ASTM G21)0
Movement Capabilities± 8%
Coverage12.8 sq ft/gallon @ 1⁄8″ (0.31 sq m/L @ 3.2 mm)
Viscocity150,000 to 200,000 cps
pH7 to 8
Solvent ContentN/A
In Service TemperatureLess than 185°F (85°C)
Storage Temperature40°F (4°C) to 95°F (35°C)
Application Temperature60°F (16°C) to 90°F (32°C)
Drying Time Tack Free2 Hrs
Dry Through24 to 48 Hrs
STC Rating (ASTM E90-04/ASTM C919)61 (Relates to Specific Construction)
VOC Content30 g/L****
Shelf Life From Date of Manufacture24 months

*Tested to ASTM E84 (UL723) at 14% surface coverage (modified test for sealants and caulks)

**Per SCAQMD Rule 1168 (EPA Method 24)


STI Firestop

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