Sound deadener differences

[chex96]

Hey guys just wondering if some one could tell me the difference between GP STFU and GTMAT quadro. They are both around the same price, just wondering which is overall thicker and what it contains more of, foam or butyl rubber. Also if i were to deaden my roof with one of these, what else would i need or is this all i would need?

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[negolien]

This site has some information I found helpful it explains when you should use what and stuff check out the info. Oh and the products aren't bad either.

Welcome to Sound Deadener Showdown | Sound Deadener Showdown

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[chex96]

I have used this website and already CLD tiles my roof but i need more. Thanks though