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Message: <blockquote data-quote="whitedragon551" data-source="post: 8293562" data-attributes="member: 608181">Damp Pro is a deadener. Its designed for 2 purposes. First is a viscoelastic layer (butyl) that absorbs vibrations and turns them to heat and dissipates via the aluminum layer. The second is by adding mass to a panel to change the resonant frequency.You would use MLV or mass loaded vinyl to keep the road noise out and the audio in.To do things properly you also need CCF or closed cell foam. Closed cell foam is used to decouple vibrating panels or 2 other surfaces that rub/make noise against each other.Majority of post is incorrect. See above. The right part is you dont have to cover every square inch. The 25% rule applies. 25% coverage is where the cost to benefit ratio of covering every square inch just isnt worth it for the minimal gain you get.</blockquote>

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