OSI 28 fl. oz. SC-170 Vapor and Acoustical Sound Sealant-1305812 at The Home Depot
Free shipping


Model # 1305812

Internet # 100298204

Store SKU # 475261

28 fl. oz. SC-170 Vapor and Acoustical Sound Sealant

OSI 28 fl. oz. SC-170 Vapor and Acoustical Sound Sealant

This item has been discontinued.
The Home Depot no longer carries this specific product.



Model # 1305812

Internet # 100298204

Store SKU # 475261

OSI SC-170 Vapor and Acoustical Sound Sealant are specifically designed for reducing sound transmission in all types of wall partitions to maintain specified STC values. Sealant is non-hardening, non-staining and very tacky. It adheres to drywall, wood, metal, masonry, polyethylene and other building materials. SC-170 provides an air tight vapor barrier when used with polyethylene sheeting to help prevent air infiltration and the formation of condensation. SC-170 was 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), and cut-outs in gypsum board, veneer plaster systems and other areas where a sound rated assembly is required. It can also be used as a buck frame, threshold or bedding sealant when applied to metal or glass surfaces.

  • Can be used on a wide vairety of substrates to primarily reduce sound transmission or provide a permanently flexible vapor barrier adhesive that withstands material movement
  • Long lasting adhesion maintains specified STC standards
  • Wide service temperature range of -40°F (-40°C) to 250°F (120° C), remains flexible even at extremely low temperatures
  • Adheres to clean concrete, gypsum, metal, glass, plastic and wood surfaces without primer

Info & Guides

You will need Adobe® Acrobat® Reader to view PDF documents. Download a free copy from the Adobe Web site.


Assembled Depth (in.)  3.5 in  Assembled Height (in.)  16.25 in 
Assembled Width (in.)  3.5 in  Caulk Form  Standard Tube 
Caulk Type  Synthetic rubber  Certifications and Listings  ASTM Compliant 
Color/Finish  Black  Coverage (linear ft.)  85 
Cure time (hours)  24  Dry color family  Black 
Dry to touch (min.)  120  Fire and high heat resistant  No 
Individual size (oz.)  28  Indoor/Outdoor  Indoor 
Manufacturer Warranty  None  Moisture Resistant  Yes 
Mold and mildew resistant  No  Paint Product Type  Sealants 
Paintable/Stainable  No  Permanently flexible  Yes 
Professional Paint Supplies & Values  Pro Supplies  Tintable  No 



Store Exclusive. This item is available for purchase in select stores only.