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View Full Version : Anyone Tried Dynamat?


Tobynine9
11-21-2005, 05:46 AM
I'm tired of hearing every seam in my door panels rattle when I turn the stereo up. I was thinking of cutting some Dynamat to coat the panels closest to and all the way around the door speaker opening.

Much of the buzzing seems to stop just by pushing my hand flat against the speaker grille.

Anyone else tried to remedy this with Dynamat or anything else?

easyericvan
11-21-2005, 10:23 AM
You can get fat mat off ebay for cheap. It is just like dynamat. I used it in my last car and it worked great. The only bad thing is it has a weird smell, but it goes away. It will make your speakers sound alot better too.

mdh100
11-21-2005, 11:48 AM
hi temp mastic is the same stuff as dynomat for less than half the price. visceolastic is like dynomat super, i think. if your wanting to get rid of rattles then you want a dynomat substitute, but if your wanting to get rid of roadnoise you would want to go with something else

Brown Bread is also very good (a lot better than dynomat) and is much cheaper.

I know what rattle you're talking about. I just took the speaker grill off and used a heating gun to put hi temp mastic on them.

I also did my doors, floor, and hatch with either hi temp mastic or visceolastic. It also depends how thick you want the stuff to be. I believe that hi temp mastic is thicker (heavier) than visceolastic...if i remember correctly. I used two layers on most of my car.

Daniel P.
11-21-2005, 06:33 PM
my passenger side speaker rattled really bad, so i figured it blown and i replaced it and stopped the rattle but now my drivers side is doin it is it blown? it wasnt bad but got worse over time is it blown or can i just tighten it?

mdh100
11-21-2005, 07:31 PM
get new speakers....if they're the stock speakers they suck anyways

Tobynine9
11-22-2005, 06:03 AM
I just replaced my speakers so I know they're not blown. I know how that goes though. The freakin rattles are driving me nuts. It squeeks and rattles more than my '94 Mazda did.

mdh100
11-22-2005, 07:42 AM
you're going to have to listen to the radio and then track each one down to get them all out. I had one or two rattles left after I put sound deadening material on my car. Both were in the hatch area.

MadSeason
11-22-2005, 11:47 AM
I love that stuff, works great, just make sure to get the mats of it and not the spray stuff.

Tobynine9
11-22-2005, 02:05 PM
Another question for y'all. Are you sticking the stuff to the actual interior door panels (the part that's rattling) or onto the door frame or even the inside of the exterior door body panel? All the pics on eBay of the eDead and Fatmat show it installed on the door frame and inside of the exterior door body panel. While I'm sure that'll cut down on road noise to a greater extent than sticking it straight on the plastic, POS rattling door panel, it doesn't seem like that would solve my problem with the door panel itself rattling (vs. a body panel or interior door component). Would I be doing a no-no by putting it on the door panel?

mdh100
11-23-2005, 07:16 AM
take your door panel off and see if it still rattles. The actual door panel shouldn't be rattling (at least mine didn't....except the speaker grill). I didn't put anything on the actual door panels.

Tobynine9
11-23-2005, 08:28 AM
How did you put it on the speaker grille? You said you used a heating gun... like a hot glue gun? I'm not getting it.

Thanks.

rotwiler
11-23-2005, 06:28 PM
I just ordered some eDead from Elemental Designs since it is light(17lbs for 20 square feet) and $1 a square foot. I'm not doing the whole car, just the rear well and maybe behind the back seat to stop some noise since the LT headers(can get pretty loud). I don't want to put too much heavy sound deadening in, I like good sounding car audio, but I also like to go fast. I am pretty sure most of the sound deadening is better than nothing, is all about what fits into your budget and ease of install, plus how much extra weight it adds if you care about that.

mdh100
11-24-2005, 07:43 AM
How did you put it on the speaker grille? You said you used a heating gun... like a hot glue gun? I'm not getting it.

Thanks.

I cut small pieces of visceolastic, then heated them up with the heat gun and then molded them around the plastic tips that hold the grill on. Most sound deadening material I've seen doesn't stick very well to plastic. Neither does visceolastic...but it worked good enough to stop the rattle.

DwimmerlaikGTO
11-24-2005, 06:27 PM
adding the sound deadening can make a huge difference. You just have to apply it to the right surfaces.

keno2095
12-03-2005, 04:10 AM
entire inside of my car was done ... love it

Tobynine9
12-04-2005, 04:39 PM
I pulled the door panels and used a latex caulk to seal all of the joints on the speaker grille. The grille doesn't rattle anymore.

MadSeason
12-04-2005, 04:42 PM
entire inside of my car was done ... love it

How much weight did it add to do the whole car?

TransAmMan
12-06-2005, 11:52 PM
I don't mean to jack this thread or anything. But I installed some aftermarket infinity subs in the sail panel area and the drivers side is fine but the passenger side rattles and when i pull the speaker out it stops. I tried ghetto rigging it ( lol ) and used some plastic wraped behind it to sort of pry it out and it seemed to work but it rattled the stuff right out. Do you think if I put some dynamat behind it. It would fix the problem?

thanks.

mdh100
12-07-2005, 07:50 AM
How much weight did it add to do the whole car?


it depends what type of material you use. I'm not sure about dynomat. But the visceolastic and high temp mastic added about 20 lbs to my car (I went over some areas twice)

mdh100
12-07-2005, 07:56 AM
I don't mean to jack this thread or anything. But I installed some aftermarket infinity subs in the sail panel area and the drivers side is fine but the passenger side rattles and when i pull the speaker out it stops. I tried ghetto rigging it ( lol ) and used some plastic wraped behind it to sort of pry it out and it seemed to work but it rattled the stuff right out. Do you think if I put some dynamat behind it. It would fix the problem?

thanks.


Do you know exactly where the car is rattling? If you have pinpointed the spot then any sound deadening material should take care of the problem. I think most people will agree to stay away from dynomat (it's way overpriced for what it is) Brown bread is probably the best on the market right now. I've read a few articles by audio magazines that have tested all the different kinds of sound deadening materials and Brown Bread is always ranked very high (1st or 2nd) while dynomat is usually toward the middle/bottom.

easyericvan
12-07-2005, 09:27 AM
I don't mean to jack this thread or anything. But I installed some aftermarket infinity subs in the sail panel area and the drivers side is fine but the passenger side rattles and when i pull the speaker out it stops. I tried ghetto rigging it ( lol ) and used some plastic wraped behind it to sort of pry it out and it seemed to work but it rattled the stuff right out. Do you think if I put some dynamat behind it. It would fix the problem?

thanks.

My car did the same thing when I changed my speakers. Make sure you screw it in as tight as possible. If that doesn't work get some new clips for the screws and make sure the speaker wire is out of the way.

TransAmMan
12-07-2005, 10:52 PM
My car did the same thing when I changed my speakers. Make sure you screw it in as tight as possible. If that doesn't work get some new clips for the screws and make sure the speaker wire is out of the way.

Thanks, I'll take a look at that in the spring. It's in storage now. I miss it so much :(

Where can I pick up some brown bread?

mdh100
12-08-2005, 07:17 AM
Thanks, I'll take a look at that in the spring. It's in storage now. I miss it so much :(

Where can I pick up some brown bread?


is the plastic rattling or metal/body panel rattling? I wouldn't use brown bread if the plastic is rattling. Most sound deadening material doesn't stick to plastic very well.

TransAmMan
12-08-2005, 05:36 PM
it's like the metal behind the speaker.