Metacaulk Smoke and Acoustic 90 (SAS 90)

DESCRIPTION: High-quality sealing compound comprised of acrylic latex essential for non-fire-rated penetrations and joints in achieving and maintaining the required Sound Transmission Class (STC) rating for airborne sound and preventing the passage of smoke and toxic gases in smoke barrier partitions, as required by the IBC.


  • Excellent freeze-thaw
  • High adhesion, tough long-lasting bond
  • 2-year shelf life
  • Flexible, non-sag set, water cleanup capabilities; paintable
  • Mold and mildew resistant

PERFORMANCE: Tested in accordance with ASTM E90, ASTM E84, ASTM C834, ASTM C919, ASTM G21; Low VOC content; meets LEED V4 Emissions requirements; STC rating 62

SAS 90 One-sheet


Metacaulk SAS 90 Through Penetration

Metacaulk SAS 90 Linear Joint

Product Variations

  • 66653 (MCSAS90-5CAULK) - Metacaulk Smoke & Acoustic Sealant 90 - Caulk-grade, 5 gal White
  • 66654 (MCSAS90-5SPRAY) - Metacaulk Smoke & Acoustic Sealant 90 - Spray-grade, 5 gal White
  • 66655 (MCSAS90-28F) - Metacaulk Smoke & Acoustic Sealant 90 - 28oz Fiber Tube White
  • 66656 (MCSAS90-20) - Metacaulk Smoke & Acoustic Sealant 90 - 20oz Sausage White



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