Sound Deadening...What needs to be done?

[RcRacerDrew 10+ year member]

Well I have heard a million different techniques and ideas from a million different stereo shops about sound deadening. Everyone seems to have different ideas about where it is neccessary to apply it and how much should be applied. Whats the scoop? I ordered 60sq.ft of 50mm Edead for my truck. I know the hatch needs to be done but what about the floor? Doors? How bout the sides? Has anyone used spray stuff such as Lightning Audio Noise Killer or Dynamat Spray? I can get this really cheap and was wondering if this would be benificial in the corners or anywhere else. Any suggestions would be great. Ive never really seen an in depth discussion on sound deadening. Thanks!

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[thegunner 5,000+ posts]

i know that if your door pannels rattle the best thing you can do is to add weight, ie deadening material. spray or mat whatever

 

[Mark_ab 5,000+ posts]

Originally posted by RcRacerDrew Well I have heard a million different techniques and ideas from a million different stereo shops about sound deadening. Everyone seems to have different ideas about where it is neccessary to apply it and how much should be applied. Whats the scoop? I ordered 60sq.ft of 50mm Edead for my truck. I know the hatch needs to be done but what about the floor? Doors? How bout the sides? Has anyone used spray stuff such as Lightning Audio Noise Killer or Dynamat Spray? I can get this really cheap and was wondering if this would be benificial in the corners or anywhere else. Any suggestions would be great. Ive never really seen an in depth discussion on sound deadening. Thanks!

The spray is great for corners, or little nooks and crannies you can't get at very well. I use deadening not for rattles, but resonations. I solve rattles other ways, like finding it, and applying foam pads or the like. I also like deadening for drowning out road noise and lowering the noise floor of the vehicle, which, subsequently, increases the dynamic range of the speakers in your vehicle since they don't have to overcome ambient noise.

 

[RcRacerDrew 10+ year member]

what kind of foam do you use? Its seems like the whole back of my truck rattles so this may be what i need to do..

 

[LoneRanger 10+ year member]

My suggestion (and it seems like you've gotten quite a few) would be to first put down a thick layer of spray on, paying extra attention to the cab corners and the crease where the back of the cab meets the floor. Let this stuff dry for at least six hours (it doesn't take that long to actually dry, but it will be completely hardened by then). Next, put down a layer of edead that completely coveres the floor and the bottom half of the back wall under the rear window. Now take off your door panels and give them a good spray down and mat the area behind your door speakers and any place on the door that might rattle. Now, if you still have some mat left over (which you should) you can take your headliner down *CAREFULLY AS NOT TO FUK IT UP!* and put down some edead under it. Now, put it all back together and enjoy your newly soundproofed truck.

 

[RcRacerDrew 10+ year member]

That sounds like a good idea..i didnt know if combining spray and edead would be ok but i guess ill try that. By truck i meant suv but the same principal applies i guess. Is it worth doing the floor? I know there is some factory deadening but is it worth pullin the seats and carpet etc?

 

[Bumpin03 10+ year member]

what website sells edead??? or is there any other product of good quality for cheap??? if so, leave their website too. I'm not looking to do the whole car, but probably the trunk and license plate and anything else that rattles badly (haven't hooked up my subs yet.)

 

[RcRacerDrew 10+ year member]

http://www.edesignaudio.com Ive used that on freinds cars before and it is great. Very cheap and is like dynamat.

 

[Corsica 5,000+ posts]

I need to do my trunk but this is going to depend on weither or not i can/will kepp this car.

J

 

[RcRacerDrew 10+ year member]

What brands of spray on sound deadening to you guys like? I can get the best deal on the dynamat kind but i know lightning audio makes some too. Also about how much area can be covered with a can?

 

[ramos 5,000+ posts]

I personally like Cascades version of the spray on deadening material. One can is usually enough to put one coat on a door panel. maybe a little more but not much. I have also found that actual carpet padding is the best thing for killing road noise through the floor of the automobile. //content.invisioncic.com/y282845/emoticons/smile.gif.1ebc41e1811405b213edfc4622c41e27.gif

 

[RcRacerDrew 10+ year member]

are there any websites or manuals or anything with info about how to remove an interior from an suv? Thats gonna be the part that binds me up..i just dunno how to get it all out.

 

[RcRacerDrew 10+ year member]

some one was telling me about a book that gives instructions on how to do maintenece on dif. makes of cars...would sumthin like that show how to get the interior out?

 

[LoneRanger 10+ year member]

depending on the type of suv, you will probably need the following tools:

1 set of hex head screwdrivers

1 panel puller (looks like a screwdriver with a curved fork on the end)

1 medium phillips head screwdriver

1 small phillips head screwdriver

Use these tools to remove all of the interior molding that needs to be taken out.

The seats are likely bolted down to the floor with metric bolts (10mm if it's a ford) and there's usually four bolts that hold the tracks down to the floor on the front and two bolts that hold down the back seat. After you take out the seats and molding, the carpet should pull right up. The door panels are probably a little trickier. You'll have to remove the arm rests and window knobs first, disconnect the electronics if any, then keep taking out all visable screws until the panel pops off. Most fords have little plastic hooks that hold the panel to the metal, so when taking the panel off, you have to lift up then pull out....i found that out after i broke four of the hooks off and had to superglue them back on.

anyway, if you need any specific help removing anything, drop me a line at spawn571ko@yahoo.com and i will be more than happy to help out as best i can.

 

[RcRacerDrew 10+ year member]

Awsome thanks..ill just have to pick up a panel puller..ive taken the door panels off quite a few times so thats no biggie. Thanks again!