#1 Home Improvement Retailer

Internet #202768260

Model #1496542

SC175 28 fl. oz. White Draft and Acoustical Sound Sealant (12-Pack)

Includes 12 tubes ($5.97 /tube)
$71.58 /package
Apply Now
Save up to $100 on your qualifying purchase info
Apply for a Home Depot Consumer Card
  • Non-flammable, non-toxic sealant adheres to diverse materials
  • Designed for use where sound-rated assembly is required
  • Resists moisture, mold, mildew and is paintable and sandable
caret

Product Details

The OSI GreenSeries SC-175 Draft and 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 sound-rated assembly is required. GreenSeries SC-175 is paintable, remains flexible and adheres firmly to wood, metal studs, concrete, drywall and most other building materials, while achieving and maintaining the specific STC (Sound Transmission Class) values and meeting LEED requirements. This sealant was developed primarily for commercial construction utilizing lightweight cavity walls and floor systems, ideal for use 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. It 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. In addition, it works well for sealing sill and base plates in residential construction.

Additional Resources

From the Manufacturer

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

Specifications

caret

Questions & Answers

19Questions
caret
Q:Is this product safe for James Hardie Board?
by|Sep 25, 2021
1 Answer
Answer This Question

A:  Thank you for the question. The OSI SC175 Draft and Acoustical Sound Sealant is a latex, water-based product. Unfortunately, you have not provided enough information about the intended use on fiber cement board to give you a proper answer. The sealant will not hurt the board, but it may also not be well suited for the intended application. Perhaps if you tell us more, we can better help you.

by|Oct 1, 2021
    caret
    Q:can I use this as an added air barrier/sill sealer with a foam sill roll, and does this come in s...
    by|Oct 15, 2020
    2 Answers
    Answer This Question

    A:  It is not available in sausage packs

    by|Mar 26, 2021

      A:  Thank you for the question. The SC 175 is a latex, water-based product and suitable for this application at the sill joints. It does not come in sausage packs.

      by|Oct 15, 2020
        caret
        Q:What is the reason this product isn't supposed to be used with poly to create an air seal? There ...
        by|Oct 12, 2020
        3 Answers
        Answer This Question

        A:  Thank you for the question. This product is a latex, water-based sealant and will not stick or bond to polyethylene vapor barriers. For more information about the SC 175 please visit the website at www.ositough.com and review the Technical Data Sheet.

        by|Oct 13, 2020

          A:  Poly pipe is prone to vibration and as pliable the sealant is supposed to be drywall dust may harden the caulk and poly pipe may crack near the source of vibration with age.

          by|Oct 12, 2020

          A:  Thank you for the question. The OSI SC 175 is a latex, water-based product. This type of chemistry will not bond to polyethylene vapor barrier materials. OSI no longer offers a product suitable for use with polyethylene vapor barriers

          by|Mar 26, 2021
            caret
            Q:Can this be used to air seal my home. I'm looking to caulk my 2x6 framing to my OSB from the insi...
            by|Oct 10, 2020
            3 Answers
            Answer This Question

            A:  Yes, that is the most ideal application. If you do any caulking after hanging any drywall, have a vacuum with HEPA filter handy as drywall dust repels the caulk.

            by|Oct 12, 2020

            A:  Thank you for r the question. The SC175 product or any latex based product is suitable for tis purpose.

            by|Oct 12, 2020

              A:  Yes

              by|Mar 26, 2021
                Showing 1-4 of 19
                caret

                Customer Reviews

                3.9 out of 5
                (60)
                • 3.9
                  out of 60 reviews
                • 69%recommend this product
                Filter by:
                Showing 1-10 of 60 reviews
                OSI SC-175 acoustic sealant for recording studio
                This is an important piece of our soundproofing efforts to build a REAL recording studio. It is highly recommended by studio builders all over the world on the internet forum.
                by
                • DIY
                • Verified Purchase
                • Recommended
                6 found this review helpful
                This is the best for acoustic works and vapor barrier....
                This is the best for acoustic works and vapor barrier. The trouble is Home Depot doesn’t seem to get more stock of it.
                by
                Response from OSI - Henkel CorporationFeb 9, 2022
                Thank you for being a valued OSI customer! We are glad that you are happy with our product. OSI
                • Verified Purchase
                Seems like a good product. Sealant consistantly leaks past caulking gun piston creating a mess an...
                Seems like a good product. Sealant consistantly leaks past caulking gun piston creating a mess and also wasting 1/4 to 1/5 of the caulk. An expensive mess.
                by
                  • Recommended
                  Does what it's supposed to do!
                  Does what it's supposed to do!
                  by
                  • Verified Purchase
                  • Recommended
                  I expext the acoustical sound sealant to be sticky ....
                  I expext the acoustical sound sealant to be sticky . This is not
                  by
                  Response from OSI - Henkel CorporationMar 8, 2021
                  Thank you for providing your feedback. If the SC 175 Draft and Acoustical Sealant was not to your expectations, we would like to know more about the application and conditions to better understand the situation. Please reach out to our Technical Team at 1-800624-7767 so we can help you. OSI
                  • Verified Purchase
                  worthless as an acoustic sealant
                  To work, acoustic sealants need to stay flexible. This junk shrinks and gets hard as a rock. I use it to fill large gaps solely for air sealing rather than flammable foams.
                  by
                  Response from Henkel CorporationJan 31, 2021
                  Thank you for sharing your feedback. We are so sorry to hear that you had this experience with the SC175. What you are describing is not characteristic of this product and therefore would not be up to our standards of packaging. We would love to continue this conversation to learn more about the tube you have. Please reach out to our technical support team at 1-800-624-7767 so we can help.
                    1 found this review helpful
                    by
                    • Verified Purchase
                    I read this sealant can be substituted for “green glue”....
                    I read this sealant can be substituted for “green glue”. I used it between 2 layers of 5/8” drywall n my ceiling. It really works. Can barely hear anything from the room upstairs. And at 1/3 of the price? Great value
                    by
                    • Verified Purchase
                    1 found this review helpful
                    Was very hard when it dried. Therefore I do...
                    Was very hard when it dried. Therefore I do not think it would be able to slow the transfer of sound
                    by
                    Response from OSI - Henkel CorporationMar 26, 2021
                    Thank you for sharing your feedback. We are so sorry you had this experience with the SC175. What you are describing is not characteristic of this product and therefore would not be up to our standards of packaging. We would love to continue this conversation to learn more about the tube you have. Please reach out to our technical support team at 1-800-624-7767 so we can help. OSI
                    • Verified Purchase
                    by
                    • Verified Purchase
                    Showing 1-10 of 60 reviews

                    Frequently Bought Together

                    +
                    +
                    Price:
                    $7158