I'm a carpenter by trade. I use this to install windows and can buy it dirt cheap. I'd be pissed if i bought the "good stuff" and it ends up being the same stuff.
Can you use a combination of these types of sound deadeners/blockers?
To block road noise. I'm not looking for any audio performance. Just don't want to hear the road as much.
Home Depot peal and seal
Truck is 3/4 done and without the door panels this thing is way different. It's almos erie how quiet it is.
Home Depot peal and seal
There are a few decent companies out there.
For price to performance Audio Technix is the best bang for the buck. Murdermat is decent as well.
Secondskin is not even owned by the guy who got it all going. And he (original owner) is a dick on many levels.
B-Quiet is an asphalt based deadener and it will dry out and lose it's ability to reduce vibrations. You want a butyl based deadener.
In order for it to work, it needs a constraining layer (foil) and the butyl. The foil trys to stay rigid, and the butyl shakes with the resonating panel, creating heat instead.
Deadener as stated only reduces vibrations, and does naturally block some sound.
In order to block sound you need closed cell foam ccf and mlv or mass loaded vinyl. Foam in itself does little to block noise, as the wavelengths are so long they pass right through the foam because of low density. The foam is used as a decoupler for the mlv to the deadener. The mlv is heavy at 1 lb/sq ft or even 2 lb per sq/ft. This is the barrier that blocks sound. But it must be decoupled from the deadener so it does not resonate either.
Truck is 3/4 done and without the door panels this thing is way different. It's almos erie how quiet it is.
I find myself turning the radio down to make sure my engine isn't making weird noises LOL it's also date worthy now! I'm not hesitant to throw a chick in this thing anymore.
Yes that is the best way to achieve keeping wanted noise in, and unwanted noise out.
It is a 3 layer combination. First deadener on the metal panels. Then ccf on top of it, then MLV over the ccf.
Stop resonating, decouple sound blocker, block sound.
As far as the guy saying it is peel and seal.....you are very sadly mistaken. Peel and seal is a waterproof membrane for that purpose....to seal out water. Most of these are a dedicated combination of foil thickness and butyl rubber adhesive to achieve the least resonance at certain frequencies.
Just ordered some fatmat, hope it's worth it...