Quote:
Originally Posted by swamp rat
Ok thanks for the product link, The link to the article you posted was the same as the product link so i couldn't read the article..
So i'm guessing this stuff may be better than just using 2 layers Dynomat first then the closed cell? Or possibly the way you layer it makes a difference? I'll be interested to read your thoughts on how well it performs, my truck is LOUD...
I was also wondering if you had a heat gun if it would help shape the MLV a little?
Then i had one thought, how thick are the 3 layers and will it affect the accelerator pedal movement enough to be a problem? Just thinking ahead.
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The three layers actually do different things. The dynamat reduces harmonic vibrations which can create sound. From what I've studied it is not necessary to completely cover a surface with the material, but somewhere between 25% to 50% coverage will get it done. The aluminized foam serves two purposes, stop heat transfer and stop noise. The mass load vinyl, also stops what I would call airborne noise such as exhaust, tire noise etc.
As for thickness, all 3 layers are less than 1/2 inch, probably closer to 3/8. If I find it's to thick around the gas pedal, I'll just cut it out.
I did try a heat gun, but the MLV didn't seem to want to hold it's shape when it cooled. The good news, is that if you trim it in smaller pieces, it stays put.
My mistake at first was trying to use two large pieces to cover the floor and firewall.