---
product_id: 11322973
title: "OSI SC175 Draft & Acoustical Sound Sealant, 28 fl oz, Cartridge"
brand: "henkel"
price: "$69"
currency: NZD
in_stock: true
reviews_count: 8
category: "Henkel"
url: https://www.desertcart.nz/products/11322973-osi-sc175-draft-and-acoustical-sound-sealant-28-fl-oz
store_origin: NZ
region: New Zealand
---

# STC-certified sound reduction 28 fl oz easy-apply cartridge Permanently flexible freeze-thaw OSI SC175 Draft & Acoustical Sound Sealant, 28 fl oz, Cartridge

**Brand:** henkel
**Price:** $69
**Availability:** ✅ In Stock

## Summary

> 🔇 Lock in quiet, unlock your space’s potential.

## Quick Answers

- **What is this?** OSI SC175 Draft & Acoustical Sound Sealant, 28 fl oz, Cartridge by henkel
- **How much does it cost?** $69 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.nz](https://www.desertcart.nz/products/11322973-osi-sc175-draft-and-acoustical-sound-sealant-28-fl-oz)

## Best For

- henkel enthusiasts

## Why This Product

- Trusted henkel brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Built to Last:** Permanently flexible to maintain airtight seals through freeze-thaw cycles and daily wear.
- • **Eco-Smart Choice:** Low VOC (25 g/L) and non-flammable for safer, greener building projects.
- • **Seal the Silence:** Achieve professional-grade soundproofing with UL-tested STC performance.
- • **Paint-Ready Finish:** Seamlessly paint over cured sealant to blend with any wall system or design.
- • **Effortless Application:** Smooth, water-based formula cleans up with soap and water—no harsh chemicals.

## Overview

The OSI SC175 Draft & Acoustical Sound Sealant is a 28 fl oz, water-based, non-flammable sealant designed to reduce sound transmission in sound-rated wall systems. It offers permanent flexibility even through freeze-thaw cycles, is UL tested for sound performance, easy to apply and clean up, paintable when cured, and features low VOC levels for environmentally conscious projects.

## Description

Product Description 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 From the Manufacturer 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.

Review: Effective Noise Blocker - This sealant was essential for my soundproofing project, effectively sealing gaps to significantly reduce noise transmission between rooms. I found it surprisingly easy to apply and clean up, and I love that it remains flexible to maintain a tight seal over time.
Review: Good product - HORRIBLE shipping - desertcart fail - I have used this product in the past and it's a good product. However, when the product arrived, the applicators on both tubes were caved in - severely pushed back into the tubes. One was so bad that the caulking was coming out around it. Obviously there was no care taken in packaging this item. I pulled the applicators out and tried to use them but the caulking had started to harden. I ordered this item from desertcart for convenience but it has ended up being more of a hassle than it would have been to go to a store to buy it.

## Features

- Designed for Sound-Rated Wall Systems
- Permanently Flexible
- Easy Application & Clean-Up
- Reduces sound transmissions in walls and partition systems
- Used for Painting Supplies Caulk & Sealants
- VOC level 25 g/L [1-Percent]
- Non-flammable, water-based sealant
- Easy-to-use and paintable when cured
- Permanently flexible even through freeze-thaw cycles

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B0013STR20 |
| Batteries Included? | No |
| Batteries Required? | No |
| Best Sellers Rank | #58,328 in Industrial & Scientific ( See Top 100 in Industrial & Scientific ) #161 in Adhesive Caulk |
| Brand | Henkel |
| Color | White |
| Customer Reviews | 3.7 3.7 out of 5 stars (75) |
| Date First Available | February 11, 2008 |
| Finish | Brushed |
| Global Trade Identification Number | 00028756988458, 20028756988452 |
| Included Components | Safety Respirator Cartridges and Filters |
| Is Discontinued By Manufacturer | No |
| Item Form | Liquid |
| Item Package Quantity | 1 |
| Item Weight | 0.32 ounces |
| Item dimensions L x W x H | 65.35 x 65.35 x 413.16 inches |
| Item model number | 1496542 |
| Manufacturer | Henkel |
| Material | Acrylic Urethane |
| Measurement System | Metric |
| Number of Items | 12 |
| Part Number | 1496542 |
| Pattern | Solid |
| Power Source | Hand_powered |
| Product Dimensions | 65.35 x 65.35 x 413.16 inches |
| Shape | Rectangular |
| Size | Single |
| Style | Compact |
| Surface Recommendation | Wall,Walls |
| UPC | 028756988458 028756175292 |
| Unit Count | 1.0 Count |
| Usage | Construction, Soundproofing |
| Water Resistance Level | Water Resistant |

## Product Details

- **Brand:** Henkel
- **Item Weight:** 9.07 g
- **Item dimensions L x W x H:** 65.35 x 65.35 x 413.16 inches
- **Material:** Acrylic Urethane
- **Style:** Compact

## Images

![OSI SC175 Draft & Acoustical Sound Sealant, 28 fl oz, Cartridge - Image 1](https://m.media-amazon.com/images/I/31UojCaCvaL.jpg)
![OSI SC175 Draft & Acoustical Sound Sealant, 28 fl oz, Cartridge - Image 2](https://m.media-amazon.com/images/I/71A1MX+kACL.jpg)

## Questions & Answers

**Q: Is the caulk a green color?**
A: The description says it's white.

**Q: Does this work like the green glue compound or green glue sealant?**
A: I have not used it between sheets of drywall when layering them for a soundproof wall.  We use it between the bottom plate and the subfloor, around outlets and other penetrations, and at other perimeter joints.  This stuff works great!

## Customer Reviews

### ⭐⭐⭐⭐⭐ Effective Noise Blocker
*by P***T on November 27, 2025*

This sealant was essential for my soundproofing project, effectively sealing gaps to significantly reduce noise transmission between rooms. I found it surprisingly easy to apply and clean up, and I love that it remains flexible to maintain a tight seal over time.

### ⭐ Good product - HORRIBLE shipping - Amazon fail
*by R***. on May 26, 2021*

I have used this product in the past and it's a good product. However, when the product arrived, the applicators on both tubes were caved in - severely pushed back into the tubes. One was so bad that the caulking was coming out around it. Obviously there was no care taken in packaging this item. I pulled the applicators out and tried to use them but the caulking had started to harden. I ordered this item from Amazon for convenience but it has ended up being more of a hassle than it would have been to go to a store to buy it.

### ⭐⭐⭐⭐⭐ Solid item
*by P***. on May 2, 2024*

Used two tubes for a remodel and worked well.

## Frequently Bought Together

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*Product available on Desertcart New Zealand*
*Store origin: NZ*
*Last updated: 2026-02-23*