im lookin to dynamat
Printed From: the12volt.com
Forum Name: Car Audio
Forum Discription: Car Stereos, Amplifiers, Crossovers, Processors, Speakers, Subwoofers, etc.
URL: https://www.the12volt.com/installbay/forum_posts.asp?tid=22171
Printed Date: May 14, 2025 at 10:57 AM
Topic: im lookin to dynamat
Posted By: 94bonny
Subject: im lookin to dynamat
Date Posted: December 01, 2003 at 9:42 AM
i just recently installed my 15 inch jl into my 94 boneville, it sounds awesome inside but when i step outside to marvel at my being... the car trunk shakes and rattles. the inside sounds fine, and im thinkin about dynamatting the trunk. if i did so would the inside sound louder and more clear? what about the outside? would i be less noticeable, would it shake less? would it be louder outside the car? What exactly would dynamat do? thanks
Replies:
Posted By: 94bonny
Date Posted: December 01, 2003 at 10:05 AM
where is the best place to buy dynamat online? i just want a cheaper than retail store trunk kit! thanks
Posted By: MAXST
Date Posted: December 01, 2003 at 10:19 AM
Peel n seal from home depo is cheaper...and prolly better. Also Raamat and brown bread are inexpensive as well...way cheaper than dynamat...and prolly better. I would do about 2 layers for good layout. ------------- I need quality equipment, feel free to donate.
Posted By: mobile E
Date Posted: December 01, 2003 at 10:20 AM
yeah, ive got about 900 watts running to 2 10's on a sealed box, it used to make my trunk rattle a bunch until i installed about 60 sqaure feet of dynamatt in my trunk... GREAT results.... the bass is crisper , more focused, absolulty no rattles in or outside the car at all! best of all i got my dynamatt online for 100 bucks for 100 square feet including the rollers and other tools and the cleaning solution. ------------- everything stolen :(
Workin on a new system :)
Peace in the middle east
Posted By: noob
Date Posted: December 01, 2003 at 11:58 AM
so do you guys just apply it to your trunk lid, so when you open the trunk you just have a layer of dynamat stuck to the trunk lid or do you do something to conceal it, cuz i dun know bout you guys but im the type that likes a clean install, despite any extra work required......so do you guys have clean installs or is it just there in plain view???? cuz my trunk rattles like cray and it pisses me off like crazy, plus i get discount from bestbuy
Posted By: bberman1
Date Posted: December 01, 2003 at 12:22 PM
If you don’t want your trunk to rattle, then I would suggest that you strip the trunk down to bare metal and apply dynamat to everything and anything. I would also suggest that you use Brown Bread https://b-quiet.com/brownbread.html you won’t find a better product for the money, and peal and seal starts to peal off with time. 70 sq/ft should do the trunk. You will also find a lot of your rattles are coming from places you never imagined, I would save some Brown Bread and cover any problem areas you find after completing the job. Noob I too like clean installs, and I normally build a facade to hide the trunk lid. I have used everything from amp installs, TV’s, xovers raised designs, carpet etc on the lid. If you just want to hide it build a simple fiberglass shell for it and cover it in carpet or vinyl.
Posted By: defective
Date Posted: December 01, 2003 at 1:21 PM
BTW, dynamatting the inside of your trunk will not stop rattles on the outside, the dynamat will stop the trunk interior panels from rattling but then the acoustic resonating looks for the next suceptable part to rattle, dynamatting the inside of your trunk may even make the outside of your car rattle more, unless of course you dampen the ouside body plastic. resonatintg sound take the path of least resistance. Rarely will dynamat stop exterior rattles unless you seal the trunk completely (thus the sound can't escape to other panels. Just some food for thought, and i thought the dynamat training was a joke....laugh -------------
Posted By: mobile E
Date Posted: December 01, 2003 at 3:16 PM
i beg the differ Defective..... i installed the dynamatt in my trunk and all outside rattles are gone, i don know much about " the acoustic resonating".... but my trunk doesnt rattle a all anymore, and it used to sound like aluminum cans banging together ------------- everything stolen :(
Workin on a new system :)
Peace in the middle east
Posted By: PuppyDawg
Date Posted: December 01, 2003 at 4:07 PM
I used brown bread as well and it's definately a very good product....but i'm going to have to disagree with the "eliminating" the rattles....I'm totally clean and professional with my work.....don't get me wrong though.....it reduced my outside rattles to almost nothing, considering my car being a 1986 300zx N/A is not bad either.......big improvement and sounds so much theater like on the inside with the dvd system.....go to ebay.com is your best best and put in brown bread.....comes with rollers and all....hope this helps.
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*paw print*
Posted By: cmosound
Date Posted: December 01, 2003 at 4:09 PM
often times the rattles you hear outside the car are caused by the licence plate or bracket, tailights, bumper supports etc. after doing the inside of the trunk, seek out the exterior rattles and deal with them.
Posted By: macka
Date Posted: December 01, 2003 at 6:58 PM
so what if your bumper is the cause of the rattles?
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Every Day I Do!!
Posted By: bberman1
Date Posted: December 01, 2003 at 7:15 PM
If it’s a plastic bumper take it off and dynamat the inside. While it’s off I would suggest you play some tunes and see if there is anything else back their that rattles, if there is take care of it as well.
Posted By: macka
Date Posted: December 01, 2003 at 7:21 PM
good idea, I will try that!
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Every Day I Do!!
Posted By: bberman1
Date Posted: December 01, 2003 at 7:32 PM
One more thing to add. When you apply the dynamat or like product, always make sure the surface is clean and dry.
Posted By: mobile E
Date Posted: December 01, 2003 at 7:37 PM
i actually took apart the entire back half of the car and took three days straight and dynamatted everything! and mean everything, i took the taillights off and put little peices of dyanmatt in key areas put one layer every where... then i put three layers on the back top part near the window... and then i put 5 layers on the trunk lid and the only time i hear rattles is when its cranked so far that it cant go any farther (clip protection) ------------- everything stolen :(
Workin on a new system :)
Peace in the middle east
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