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STI SpecSeal SNS205 Smoke N Sound Acoustical Spray 5 Gallon Pail

High quality acrylic latex spray designed for static or minimally dynamic linear joints or gaps in non rated barriers. y dries to form a flexible shield against particulate air and smoke.

  • Sprayable
  • Water resistant
  • For smoke, noise and dust control
$221.95
Availability: In stock ( 1 Available )
SKU
22973

STI SpecSeal Smoke N Sound Spray – 5 Gallon Pail

Smoke 'N' Sound Spray is an acrylic latex coating for static or minimally dynamic linear joints and gaps in non-rated barriers. It sprays or brushes on, bonds to common construction surfaces, and dries to a flexible, water-resistant seal that helps control smoke and airborne particulates while reducing sound transmission.

Key Features

  • Water-based acrylic latex; easy spray application and water cleanup.
  • Dries water resistant; remains flexible for joint movement.
  • Acoustically tested to help reduce sound transmission.
  • Class A surface finish when tested to ASTM E84.
  • Low abrasion for longer pump life; thixotropic for high-build coats.
  • No solvents, asbestos, or inorganic fibers; low VOC and non-halogenated.
  • Paintable when dry; auto-bonding to common substrates.

Applications

  • Smoke control in non-rated partitions and around penetrations.
  • Linear joints and perimeter gaps with static or minimal movement.
  • Noise control where reduced sound transmission is required.
  • Infectious or dust control to limit particulates through openings.

Technical Specifications

Color White
Chemistry Acrylic latex smoke and acoustical coating
Solids (by weight / volume) 73.5% / 66.2%
Density 10.7 lb/gal (1.28 kg/L)
VOC Content 30 g/L
Flame / Smoke (ASTM E84) Flame 5; Smoke 0 (Class A finish)
Acoustic Rating (STC) STC 61 (relates to specific construction)
Movement Capability ±8%
Coverage @ 1/8 in wet film ~12.8 sq ft/gal
Application Temperature 60°F to 90°F (16°C to 32°C)
In-Service Temperature Less than 185°F (85°C)
Storage Temperature 40°F to 95°F (4°C to 35°C)
Dry Time (70°F) Tack free ~2 hours; dry through ~24–48 hours
Unit Size (this item) 5 gallon pail (SNS205), approx. 55.5 lb each
Shelf Life 24 months from manufacture (unopened, proper storage)

Frequently Asked Questions

How is it applied?
Use suitable airless spray equipment for production coverage; brush may be used for touch-ups or small areas.

Does it re-emulsify with water?
No. Once dry, the coating is water resistant and will not re-emulsify.

Is it compatible with plastics and cable jackets?
Designed to be safe with many plastics; confirm with the penetrant manufacturer for specific materials.

What joints is it intended for?
Static or minimally dynamic linear joints and gaps in non-rated barriers where smoke and sound control are required.

Any electrical precautions?
Product contains water and is conductive until dry. Do not apply near exposed or energized conductors.