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Effective sound proofing trick.
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<blockquote data-quote="audioholic" data-source="post: 2869356" data-attributes="member: 549629"><p>For road noise, you'll have much more effect by adding absorption layers to the inside of the car (closed cell foam, carpet backing, etc) than you will slopping stuff on the outside. But yeah, if you really want to coat the outside (alot of people do), that stuff probably works fine. But for god's sake, don't ever put it inside the car. Just use concrete if you want an effective mass loader.</p><p></p><p>Let me know if you want my concrete recipe.</p></blockquote><p></p>
[QUOTE="audioholic, post: 2869356, member: 549629"] For road noise, you'll have much more effect by adding absorption layers to the inside of the car (closed cell foam, carpet backing, etc) than you will slopping stuff on the outside. But yeah, if you really want to coat the outside (alot of people do), that stuff probably works fine. But for god's sake, don't ever put it inside the car. Just use concrete if you want an effective mass loader. Let me know if you want my concrete recipe. [/QUOTE]
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