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AcoustiSeal™ Acoustical Sealant

Model #AS-29

  • Exceeds LEED™ Building Requirements
  • Low VOC
  • Low Odor
  • Non Toxic
  • Cost Effective
  • Essential for High STC Walls/Floors
  • Convenient Large Size Tubes
  • Acoustically Effective
  • Remains Soft and Flexible When Dry
  • Bonds to Wood, Concrete, Glass, Gypsum, Metal and Plastic
  • Paintable
  • Dispenses Easily
  • Easy Cleanup With Soap and Water
  • Stops Noise From Leaking Through Joints and Edges
  • Will Not Crack
  • When Used Properly, AcoustiSeal™ Drastically Increases the Overall STC of Floor, Ceiling and Wall Assemblies

Product Testing & Information

Product Specs

Material 28 oz. tube Acoustical Sealant.
Coverage 1/4″ Bead = 85 Linear Feet per Tube or 3/8″ Bead = 40 Linear Feet per Tube
Features Essential for achieving high STC value for sound isolation
Applications Wall/floor junctions to seal cracks and voids per laboratory test data, heating and A/C ducts, cold air returns, exposed joints, electrical and utility outlet boxes.
Color White
Flammability ASTM E-84 – 76, Class A


When using AcoustiSeal™ the goal is to create a completely sealed room. Think of the room you are sealing as a water tank.

  • Make sure the surfaces that are to be sealed are clean.
  • Cut the nozzle to create an appropriately sized hole.
  • The image below shows three possible AcoustiSeal™ applications. Image “A” shows sealant under one layer of drywall on both sides. Image “B” is the same as “A” with the addition of a bead under the plate resulting in a better seal. Image “C” shows a multiple drywall layer install with beads under each layer and a heavy bead under the plate. This would yield an excellent seal.
  • Allow to dry typically 48 hours before painting.
  • Drywall mud can be applied directly over AcoustiSeal™.
  • Clean up with soap and water while still wet.

First Aid

Keep out of reach of children. Wear eye protection.

Skin Contact: Wash affected area thoroughly with soap and water.

Eye Contact: Flush thoroughly with water and obtain medical attention.

Inhalation: Remove to fresh air.

Seek medical attention if swallowed.

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