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International Fireproof Technology INSS0285 Smoke and Acoustic Sealant

INSS0285 Smoke and Acoustic Sealant is a high-performance acrylic based sealant for sealing construction joints and through penetrations in non fire-rated assemblies.

Product Type: 1K (1 component) Sealant

Application Method: Gun, Spray

Chemical Family: Acrylics & Acrylates

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Knowde Enhanced TDS

Identification & Functionality

Chemical Family

Features & Benefits

Features
  • Low VOC, single component.
  • Excellent caulking and spraying properties.
  • Silicone, halogen, asbestos and solvent-free.
  • Excellent airborne sound insulation.
  • Smoke and fume resistant.
  • Easy clean up with water.
  • Low volume shrinkage.
  • Paintable.
  • Available in caulking and sprayable grades.

Applications & Uses

Application Method
Applications
  • Reducing the transmission of sound through wall openings.
  • Stopping the passage of smoke in smoke barrier walls.
  • Stopping air leakage to reduce the passage of dust and airborne infectious particles.
Installation Guide (Caulking Type)
  • Application substrate should be cleaned of loose debris, dirt, oil, wax, grease and other contaminants the surface must be moisture and frost-free.
  • Install backing material as needed.
  • The depth of the joint should be 1/4" (6 mm) minimum to 3/8" (9 mm) maximum.
  • Sealant can be applied with standard or bulk caulking guns, manual trowel or spray application.
  • Apply sealant in opening and work into all areas eliminating voids or seams and making complete contact with substrate.
Spraying Guide (Spray Type)
  • Mix INSS0285 SPRAY thoroughly using a power agitator before application.
  • Thinning is normally not required, if necessary, use potable water (3% max.) to adjust viscosity.
  • Apply via airless spray equipment in a single pass not more than 1mm WFT to prevent sagging.
  • Recommended sprayer: Model: Graco 1095 (3300psi) Filter in the machine: 60 mesh Filter in spray gun: 100 mesh Tip: 517 - 523.
  • Recommended application temperature shall be between 5 - 40 °C.
  • Do not allow the sealant material to remain in hoses, guns or spray equipment when not in use.
  • Clean all equipment with water immediately after use.
  • All unused sealants should be stored in a tightly closed container.
  • Surface skinning may occur in a partially filled container in which case filter the material before use.
  • Wet film thickness approx.1mm cures to 0.64mm dry film.
  • Thickness measurement - wet film thickness of the sealant layer can be measured using a wet film thickness gage.
  • The dry film thickness can be verified using calipers or micrometers.
Limitations
  • Not for use in areas immersed in water.
  • The sealant can only be removed mechanically once cured.
  • This product is not intended for use in fire-rated construction.
Uses
  • Joint systems
  • Dry wall
Curing Time

3mm/3days (at 25°C/ RH50%)

Types of Applications
  • Joint systems
  • Partition wall

Properties

Specifications
ValueUnitsTest Method / Conditions
Density1.5 - 1.7g/cm³
Skin-Forming Timeapprox. 25minutes
Elongation at Break300.0%
Application Temperature40 - 104°F
In-Service Temperature-13 to 176°F
Mold and MildewMold ResistantASTM G21
Volume Shrinkage (Class 0)22.3%ASTM C1241
VOC42.0g/L
Surface Burning Characteristics (Smoke Development)5.0UL 723 (ASTM E84)
STC Rating (Per Construction Type)63.0
Typical Thickness Temperature

1mm at WFT = 0.7mm DFT

Packaging & Availability

Packaging
  • 310ml/Tube; 25Tubes/CTN
  • 20 fl . oz./Sausage
  • 20 Sausages/CTN
  • 5Gal./Pail (Sprayable)

Storage & Handling

Storage Temperature
50 - 95 °F