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<blockquote data-quote="FoxPro5" data-source="post: 3947304" data-attributes="member: 562649">What do you mean &quot;extra&quot;?Ensolite is a brand of closed cell foam which is often used for its waterproof qualities (sports equipment, industrial apps where there is water, etc). There are many types of Ensolite and many more types of CC foam.Typically egg carton foam is open cell, but you have to check and see for sure which one you have. Technically, it should be more absorptive of sound because of its material properties.&nbsp; The draw back is that it can also absorb water, too.If you want to defract or &quot;break up&quot; sound waves you need a blocker or a barrier. This is where products like Deflex pads come in handy. They are resonably good (depends on frequency band) at &quot;scattering&quot; sound waves, but not so good at absorbing them. They are almost always made out of low durometer rubber or silicone and have a convoluted surface to &quot;soften&quot; the blow of a rear wave from a close distance.</blockquote>

[QUOTE="FoxPro5, post: 3947304, member: 562649"] What do you mean "extra"? Ensolite is a brand of closed cell foam which is often used for its waterproof qualities (sports equipment, industrial apps where there is water, etc). There are many types of Ensolite and many more types of CC foam. Typically egg carton foam is open cell, but you have to check and see for sure which one you have. Technically, it should be more absorptive of sound because of its material properties. The draw back is that it can also absorb water, too. If you want to defract or "break up" sound waves you need a blocker or a barrier. This is where products like Deflex pads come in handy. They are resonably good (depends on frequency band) at "scattering" sound waves, but not so good at absorbing them. They are almost always made out of low durometer rubber or silicone and have a convoluted surface to "soften" the blow of a rear wave from a close distance. [/QUOTE]

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