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Rectorseal Metacaulk SAS 90 Smoke & Acoustic Sealant, 28oz

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Original price $12.99 - Original price $149.00
Original price
$12.99 - $149.00
Current price $12.99

RectorSeal Metacaulk 150+ Firestop Sealant, 30oz

Rectorseal Metacaulk SAS 90 Smoke & Acoustic Sealant, 28oz

Rectorseal Metacaulk SAS 90 is a high-quality, latex-based sealant designed to reduce sound transmission and maintain the required Sound Transmission Class (STC) for airborne sound in accordance with International Building Code (IBC) standards. It forms a durable, flexible, and paintable barrier that prevents the passage of smoke and toxic gases through non-fire-rated penetrations and joints in smoke barrier partitions.

Rectorseal Metacaulk SAS 90 is a top choice for professionals looking for a reliable, long-lasting solution for their sound and smoke sealing needs. Its ease of use and flexibility make it an ideal choice for any project that requires a high-quality sealant to achieve the desired STC rating and prevent smoke and gas infiltration.

Rectorseal Metacaulk SAS 90 Smoke & Acoustic Sealant, 28oz Features:

  • Excellent freeze-thaw resistance
  • Strong, long-lasting bond with high adhesion
  • Flexible, non-sag set with easy water cleanup
  • Mold and mildew resistant
  • Can be painted over


  • One and two-sided applications
  • Top and bottom runners before drywall application
  • Outer edge perimeter joints of drywall
  • Cut-outs and utility penetrations
  • Bottom of wall, wall to wall, and head of wall joints in smoke partitions
  • Suitable for use in minimally dynamic joints
  • Metallic, insulated metallic, ducts, conduit, cable, and wire penetrations in non-fire rated smoke partitions and acoustical assemblies (check with manufacturer for non-metallic approvals)

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