I have been doing some reading about sound insulation. I wanted to find a cheaper alternative to Dynamat. I read about a number of people using an asphalt based "Peel ansd Seal" type of product but I didn't want to have the smell or possible carcinogens in my car so I ruled those products out. I ended up getting Reflectix which is a product for insulating ducts. It's really inexpensive ($20). I wanted to get another product which I read good things about and Sounds better that what I got, but it's unavailable here and I needed. Something now. Home Depot has it (only in the US though). It's called Frost King Duct insulation.
This is what what I got
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What I wanted, but not available
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