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Homemade dynamat?

7889 Views 26 Replies 10 Participants Last post by  mobes
Anyone know of a way to brew up my own dynamat so reduce rattle from the bass in my car?
1 - 20 of 27 Posts You can get the raamat60 for 79$ for 62.5sq ft. Thats the cheapest I know of. Just email him with Retrodrive as the subject. It'd be pretty hard to make it by yourself. You'd need the asphalt, the glue and the aluminum backing. It took three rolls (240$) to do my entire car including the doors, trunk, floor, roof, everyting.
What about roofing material?
The peal n seal is what you're talking about. It might be a little cheaper but it's not as good.
i just finish my whole trunk with just peel n seal, to me its just as good becuz i have no rattle now, all u need is use couple layers and it worked great
How about 'ol skool' carpet pad? Just dont use it where it will get wet.
Roofing peel and stick. Carpet pads don't do as well, and can't get wet.
Besides, you can buy a craplaod of peel and stick for $20. for $50 you should be able to take out your interior of the car and go all the way around it. Underside if you want to clean it and go crazy¡!¡
I use the gutter patch stuff from Home Depot. It will work fine unless it's in a place that will get really hot (like the trunk lid), or it might melt. I've completely lined my front doors with it and had no problems. You just can't expect to remove it without making a mess.
Green flooring underlay from Home Depot.
Its actually made for sound dampening b/w floors. Very easy to work with, I used a spray adhesive and a pair of scissors. Done.

Covered my whole interior w/ it carpets doors dash.... all underneath of course :hammer:
I put that same stuff over my raammat60. That flooring is good for blocking out some frequencies of road noise. It doesn't do the same thing that the dynamat/raammat/peal n seal does though.
RIght. I want to use a cheap material that doesn't look aweful that will prevent my trunk lid from rattling.

This peel and stick stuff, can it resist hot temperatures like in a trunk?
Not as well as the raammat.
Here's my $0.02..... I got Raammat off ebay and put it in. That stuff didn't stick worth crap to my trunk lid, even after I cleaned it. All of it except a few small pieces fell off due to heat, some more just fell yesterday, actually. However, the triple layers on my quarter panels are still holding. If you can keep it adhered to the trunk lid, go raammat. I'm going to reapply some in a few weeks and hope it sticks this time....
userlain said:
RIght. I want to use a cheap material that doesn't look aweful that will prevent my trunk lid from rattling.
I used Scosche Accumat.

I didn't cover the entire trunk lid with it though. I made templates of the cutouts on the trunk lid, then transfered that onto the Accumat.

It looks clean and it does the job.
why were you runnin 10lbs of boost on a 3sfe? were you screwing around? do you hvae a link to the story thread?
go to walmart and for $3, buy some Spray-On Bedliner. All dynamat does is add mass. this spray-on bedliner adds more mass than the dynamat, plus you can get into the nooks and crannies. it has the same effect, except better. it adds mass. thats all dynamat does.
spray-on bedliner, eh? i think ill check this out tonight when i am at walmart getting paint to red out my taillights
I don't think the density of the spray-on bedliner is as high, but I'd say it's worth a try. It's definitely cheaper. You can use undercoating from a parts store, but it will smell pretty nasty for a while. I used it on the inside of doors of my truck when I painted it, and I think the results were alot better with the gutter patch on my car. I suppose it's personal preference, and if you don't like the bedliner you're only out a few bucks.
gutter patch? what is this?
It's tar-backed aluminum that is found in the gutter section at home depot. AKA 'peel-n-seal'.
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