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OSI SC-175 Draft & Acoustical Sound Sealant (12PK)

OSI SC-175 Draft & Acoustical Sound Sealant
  • Price and Order
  • Item Description

This is a 12-pack of 28oz tubes. For single tubes or smaller quantities, please order here.

Product Details

OSI® GreenSeries™ Draft & Acoustical Sound Sealant is a white, non-flammable, low VOC, latex-based sealant specially designed to reduce sound transmissions and drafts in all types of wall systems where a sound-rated assembly is required. Its primary function is to achieve and maintain the specific STC (Sound Transmission Class) value of the system designed. This paintable sealant remains flexible and adheres firmly to wood, metal studs, concrete, gypsum board and most other common building materials.

OSI® GreenSeries™ Draft & Acoustical Sound Sealant exceeds LEED green building requirements, is low V.O.C., and is low odor. It can be easily cleaned while still wet with soap and water.


This sealant can be used in office buildings, hotels, apartment complexes and other types of commercial and residential construction. Use it for exposed and unexposed applications at perimeter joints, floor and ceiling runners, cutouts in gypsum board, veneer plaster systems and other areas where a sound rated assembly is required. This sealant can also be applied or buttered around all electrical boxes and outlets, cold air returns, heating and air conditioning ducts and other equipment penetrating wall surfaces for increased acoustical performance. Works well for sealing sill and base plates in residential construction. Coverage: 85 linear feet of 1/4" bead, 40 linear feet of 3/8" bead.

Quantity Pricing: $114.80/case.
For 3 or more cases, add desired quantity to your cart to view applicable pricing.
Currently ships within: Same or next business day.
Made in the USA.


Just sent off my first audition ’post-cleanse’ and man oh man, WHAT a difference! Thanks George & ATS for helping me to take it to the next level!
- Mark

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