OSI® SC175 Draft & Acoustical Sound Sealant is a non-flammable, 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 building materials. It is easy-to-use and cleans up easily with soap and water. SC 175 has been tested to UL 1479 and UL 2079 and ASTM-E84
Professional builders, engineers, manufacturers, architects and consumers alike use the Henkel OSI greenseries products to create new environmentally-sensitive approaches to construction and remodeling projects today that will benefit the world of tomorrow. The Henkel OSI greenseries is the first green brand in the adhesives and sealants category that meets both energy efficiency and global impact standards. The line offers a full range of green caulks, sealants and adhesives making it easier for professionals and consumers to identify products that can help make homes more energy efficient by preventing air from escaping through cracks. In addition, the entire line of OSI greenseries has reduced or eliminated harmful VOC levels, designed in accordance with green building specifications. Henkel's OSI greenseries draft and acoustical sound sealant is a non-flammable, water-based sealant designed to reduce sound transmissions in walls and partition 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. The easy-to-use sealant is paintable, remains permanently flexible even through freeze-thaw cycles, and cleans up easily with soap and water. OSI greenseries draft and acoustical sound sealant is available in 28-fluid ounce cartridges, and is UL tested and classified R9732.