Acoustical Sealant


Green Glue Acoustical Sealant is an economical, water based sealant. Easy cleanup, exceptional properties and no VOC’s. Seal cracks and gaps in walls, ceilings and floors.

SKU: Sealant-12 Categories: ,
Noiseproofing Sealant (SilenSeal) is a water-based sealant designed to reduce sound transmissions in soundproof walls, floors and ceilings assemblies. When building a soundproof room, you need to seal any openings and gaps to achieve and maintain a high performing STC (Sound Transmission Class) value. Acoustical Noiseproofing Sealant  will remain flexible for decades and easily cleans up with soap and water.

Acoustical Sealant is a non-flammable / water based sealant specifically designed for the reduction of sound transmission and drafts in all types of wall, floor and ceiling assemblies. GG Acoustical Sealant remains flexible and adheres firmly to wood, metal studs, concrete, gypsum board and most other building materials. Field tested and field proven, Acoustical Sealant is recognized by drywall contractors and architects as an effective means of sealing sound leaks.

Acoustical Sealant Coverage:

1/4″ bead 85 linear feet per tube
3/8″ bead 40 linear feet per tube



  • Water based, non-toxic, no VOC
  • Water clean-up
  • Low odor
  • Paintable and muddable
  • Freeze / thaw stable
  • Exceptional properties including edge damping
  • No volatile components ensures long term flexibility


Technical Specs

  • Tubes per Case: 12
  • Tubes Size: 28 oz Tube
  • Case Weight: 34 lbs
  • Description: Water based, non-toxic, no VOC
  • Cleanup: Water clean-up
  • Odor: Low odor



Installation of Acoustical Sealant is optimal when temperatures are above 55 ºF (13 ºC). Provide adequate ventilation to carry off excess moisture. Surface to be sealed must be clean, dry, and free of dust.

Use a standard contractor size caulking gun. Apply 1/4” gap, or else there will be shrink. Sealants are generally optimized for larger gap (inflexible), or for smaller gaps (flexible). Ours is flexible, so 1/4” is the max gap.

Apply continuous beads of sealant around all openings formed for outlets, lights, etc.