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STC Ratings are compiled through laboratory testing to determine how much sound material will block at different frequencies and decibels. When properly applied, STC ratings can be used to determine how much soound will be reduced by a wall, ceiling, or floor system. To do this, you will need to know the frequency and decibel rating of the sound that you want to block out. Once you have this information, you can apply it to the STC chart to determine what transmission loss you can expect from a certain Noise Grabber™ product based on its STC rating.
Important Terms
Our Noise Grabber™ MLV has been thoroughly tested by certified USA laboratories in accordance with ASTM standards. All our products are also tested to reach STC ratings, which you can read more about here. Our test results, along with thousands of happy customers, show that Noise Grabber™ MLV does work to reduce sound transmission and improve acoustics.
The different weights of Noise Grabber™ MLV have different STC ratings. These STC ratings correspond to the difference in the weight of the material. For example, the 1LB material has a lower STC rating (26) than the heavier 2LB material (32). Following that same thought, the 1LB rating (26) is higher than that of the .75LB (22). However, this doesn't mean that you should necessarily always go with the higher rating; instead, it shows you how the different materials have different effects based on the pitch and level of the noise.
Mass Loaded Vinyl is not the only STC rated item; it is one of many different items you can use to increase STC ratings. By combining Noise Grabber™ MLV with other sound-reducing products, you can further increase STC rating to block louder or different frequency sounds. Using Noise Grabber™ MLV in conjunction with other materials increases your ability to reduce sound transmission.
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