sound deadener install?? - Audio & Electronics Forum

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sound deadener install??
Monday, March 20, 2006 1:09 PM
got my 120 sq. ft. of fatmat, and i know you gotta get the mat upto room temp, or a somewhat warm temp, but what about the body panels? do they have to be warm also?? i wanna start installing in my heated garage, but it dosent get real warm in there, so i was gonna heat each sheet before puting it on, but i need to know if the body panels should be warm also

if so, will it hurt to use a heat gun on the inside of the panels>? or will it affect the paint.

and also for cleaning the surface, any special suggestions. they gave me this pack to mix with a gallon of water, but anything else i should look for?? thanks in advance






Re: sound deadener install??
Monday, March 20, 2006 1:33 PM
best advice i can give you is wait till summer time on a very hot day and let your car seat in the sund unless u want to heat up everything, because for best turn out everything needs to be hott.


I used fat mat and didn't like it, to me it can't compare to dynamtic extreme





Re: sound deadener install??
Monday, March 20, 2006 2:18 PM
waiting that long isnt really an option at this point. i have to get it down before i put in the new carpet and whole new fiberglass/moulded interior. and i have to have it ready somewhat soon
i got the fatmat extreme. it seems pretty decent compared to toher brands ive seen. but after the install will tell all





Re: sound deadener install??
Monday, March 20, 2006 2:59 PM
ya, only thing i say is the hotter each surface is the better. and make sure you clean everything before you put it down.

but good luck



Re: sound deadener install??
Monday, March 20, 2006 3:15 PM
when i installed my fatmat i heat sections up on my grill outside (it was close by). I say you can use a heat gun on low, or a hair dryer. You don't have to super heat the stuff. It was much more easiler to install and more maluable when it was warm.

I am pretty sure it doesn't require heat to bond but I used it anyways.
Re: sound deadener install??
Monday, March 20, 2006 10:38 PM
i have fatmat i didnt do anything except clean the area with the included cleaner and stick it on works good so far




Re: sound deadener install??
Tuesday, March 21, 2006 4:28 AM
i started last night. ive been heating each piece up for a few seconds with the hairdryer, and it works like a charm. i have some pics in the photos & media section

ps - i cleaned real good





Re: sound deadener install??
Tuesday, March 21, 2006 6:57 AM
use a hair dryer and clean surface with alcohol first...



JBO'S Mr. 64.....
Re: sound deadener install??
Tuesday, March 21, 2006 4:19 PM
yo use the fatmat on allflat surfaces including the door skin and the inner metal bracing, but dont cut out the empty sections, your speaks will sound soo much better because it acts as a box inside the door. also, dont use the mat on the plastic door panels, use a spray, it works like a charm. headliner is a good thing to think about doing because there is prctically no support, one big flat panel that flex's about 3 mm's. each mm of movement is equal to 8 watts of acoustical loss. good luck
Re: sound deadener install??
Wednesday, March 22, 2006 10:11 PM
forgive me for asking but what the hell is "8 watts of acoustical loss"



Re: sound deadener install??
Thursday, March 23, 2006 8:57 AM
i always use a heat gun when doing damping sheets, most glues on the sheets are activated by heat so when the piece is warm it will stick better, you can get a heatgun for like 20$ and it works tons better and faster then a hair dryer.


http://www.flickr.com/photos/sndsgood/ https://www.facebook.com/#!/Square1Photography

Re: sound deadener install??
Thursday, March 23, 2006 12:07 PM
^^really, cuz ive been doin the hairdryer, for about 5-10 seconds, and it heats it right up. its been working like a charm.
maybe ill try the heat gun just to see what kinda difference.





Re: sound deadener install??
Thursday, March 23, 2006 9:23 PM
8 watts of acoustical loss pretty much means... air pushes from speaker - moving body panel - cancellation of some of the sound wave. the more the panel flexes, the more loss you get. If a speaker is 4% efficient, and you get one mm of movement, its like 200Watts is wasted. that is not EXACTLY how it works but its a rough idea. so stiffin up your panels and you get higher sound pressure levels built up in the cabin, so you do not lose sound out of your car.
you will notice that SPL cars are really quite on the outside, that is to achieve the pressure level on the inside... make sense? if i missed something, please add..
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