Vapor & Acoustic Sound Sealant


  • Reduces Sound Transmission in Wall Systems
  • Prevents Air Infiltration and Condensation
  • Meets Specified STC values
  • Provides a Long-Term Moisture Barrier
  • Remains Flexible from a Wide Temperature Range of -40ºF to 250ºF (-40ºC to 120ºC)
  • Long-Lasting Adhesion


  • 28 fl oz (828 ml)


  • Black (IDH 1305812)

Clean Up

  • Mineral Spirits

Recommended For

SC170 is developed primarily for commercial construction utilizing light weight cavity walls and floor systems.  The sealant is used for unexposed applications at perimeter joints, floor and ceiling runners (either wood or metal), cut-outs in gypsum board, veneer plastic systems and other areas where a sound rated assembly is required.  See Technical Data Sheet for complete information.

For Best Results

Non-skinning, cannot be painted.  Should only be used in unexposed areas.  Not recommended for contact with oil-based caulking, silicone sealant, polysulfide or fillers impregnated with oil.  Should not be used in applications requiring continuous water submersion.  Not recommended for use with freshly treated wood, must be weathered for at least 6 months. 


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