OSI® Pro-Series® SC-175™ Acoustical Sound Sealant is a water based sealant designed to reduce sound transmissions in walls and partition systems. Primary function is to achieve and maintain the specific STC (Sound Transmission Class) value of the system design. VOC compliant.
UL tested and classified
Non-flammable formulation
Easy application and clean up
Will not harden, crack or separate
Non-staining and non-migrating
High degree of adhesive and cohesive strength
MSDS Download
OSI® Pro-Series® SC-175™ Acoustical Sound Sealant was developed primarily for commercial construction utilizing light weight cavity walls and floor systems. The sealant is used for exposed and unexposed applications at perimeter joints, floor and ceiling runners (either wood or metal), cut-outs in gypsum board, veneer plaster systems and other areas where a sound rated assembly is required
For full product information,
please download the Tech Data Sheet
