OSI SC-170 Pro-Series Vapor and Acoustical Sound Sealant
OSI SC-170 Pro-Series Vapor and Acoustical Sound Sealant

OSI SC-175 Pro-Series Vapor and Acoustical Sound Sealant

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CODE: OSISC175

List price: $14.79  

$11.49

You save: $3.30 (22%)
-22%
10 days
575 points
9 points

OSI SC-175 Vapor and Acoustical Sound Sealant is 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-175 provides an air tight vapor barrier when used with polyethylene sheeting to help prevent air infiltration and the formation of condensation. SC-175 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), cut-outs in gypsum board, veneer plaster systems and other areas where a sound rated assembly is required.


  • Seals polyethelene to wood/metal framing, will not dry out providing long lasting adhesion to hard to bond surfaces such as polyethelene vapor barrier
  • Reduces sound transmissions in wall systems, maintaining 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
  • Fire and high-heat resistant
  •  Subject to or will include a recycling fee in the following states: CA,

 

 

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This is a good product for sealing moderate sized cracks. I used it to prep the attic for adding fiberglass insulation. It is suppose to stay elastic even after it's cured so it can withstand the flexing of the joints between material throughout the seasonal changes in temperature and humidity. It is somewhat difficult to use at first since it is a "large" tube, requiring a bigger caulk gun than the one that I use for normal caulking around the house, plus it just keeps flowing even after you release the trigger and I even pull out the plunger, so I generally stop well ahead of where I need to stop and just let it keeps flowing out of the tube for awhile. It is messy but does the job and since it is up in the attic, I don't care as much about making a mess! I have gotten better at it though. I still have to seal a lot of joints and cracks so I am learning to apply this sealant more cleanly. For its purpose, it's a good product but does require more care in applying it than regular caulking.

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This is good stuff and quick shipping, others are charging 15.00 with shipping with 12 or case minimum which we dont need when 3 tubes is all we needed. I do not know why anyone else can not sell this by the tube like Clovis-Tools
Thank you

None
 
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