Best peel and stick sound deadener? Boom mat? Dynamat? How far do I go with it?

[Nicks67GTO]

I'm looking to "Dynamat" the interior of my car in the not so distant future. I don't think I can do a spray in because I don't think my 60 year old air compressor could keep up.

-Who makes the best peel and stick product?

-How far do I go with coverage? So I stop at doing just the floor? Or do I get into the doors, behind the rear window, under the dash etc? Is there a point where i'm just burning time, effort and money?

[fishface]

I haven't done mine yet but am this summer. A friend of mine used Damplifier Pro on his Chevelle and it seems to be an awesome product. Make sure it is where you want it because the adhesive is super strong. It comes in smaller manageable size pieces. He went nuts with his from firewall to back of package tray and inside trunk and doors. Also used a heat shield on firewall. Huge difference in the interior sound.

[rocketrod]

I used Damplifier Pro, Luxury Liner Pro and Spectrum (I think they changed the name) in my 69 Camaro and would use it again. I did entire floorpan from dash to package tray, doors, the front portion of the rear quarters and the transmission tunnel. It definitely made a huge difference in sound and temperature in the car. I still need to take some readings to get the actual difference (improvements).

[Build-It-Break-It]

I used a brand called "Fatmatt". Its sold on Ebay but I found it I'm a car audio magazine. Its about $100 for 100 square feet and usually includes a wood roller to apply it. I used it in a 68 El Camino and a 2006 G35 coupe I had. Works great but the only problem I had was "shelf life". What I mean by that is when I stored it in a cabinet the protective backing started to come off the butel tape . This will make it a little harder to cut sections out and apply it because ours already coming off the protective backing. I had it for a couple of years tho before i went to use what i had saved. Hope this helps some.

[scott_fx]

I'm looking to "Dynamat" the interior of my car in the not so distant future. I don't think I can do a spray in because I don't think my 60 year old air compressor could keep up.

-Who makes the best peel and stick product?

-How far do I go with coverage? So I stop at doing just the floor? Or do I get into the doors, behind the rear window, under the dash etc? Is there a point where i'm just burning time, effort and money?

here are two good articles to read:
http://www.sounddeadenershowdown.com/
http://www.raamaudio.com/pages/How%252dTo.html

sds recommends 20% coverage but that is on a newer car (also note the link I have below).
two slightly different approaches but good reads.

one of the most important things is to use a foam product on top of the dampening material to absorb the noise.

I personally went with the Raammatt stuff because it's had a lot of great reviews, rick's customer service is amazing and he knows his stuff. I've talked to him a lot because this is my first Classic and he has also recommended getting some acoustic tiles from part-express to stick up under the dash to absorb some road/engine noise. It's a cheap solution.

You can do inside the doors and it'll give the door a more secure 'thud' when you close. But you dont really need 100% coverage overall with the heavy dampening materiel (though saying that, i believe i'll be going close to 100% because I'll be transferring a pretty high end stereo into my car and I'm fanatical about good sound). However; you do need 100% coverage on the lighter foam product.



there have been some recent independent tests over at diy car audio (diyma.com) and the front runners were
http://www.knukonceptz.com/mobile-au...ossus-edition/ (btw... if you need any wiring for your stereo, get it here... this is the only company i use. prices are more then fair and products are top notch)
and the sds from the link above.


Now above I talked about 20% coverage above, which seems to be a good halway point. Good dampening, with the advantage of less material (weight/cost). Here is a graph of 28.75% v 95% coverage:
green is 28.75% coverage, red is undamped


http://i254.photobucket.com/albums/h...ps117daf1f.jpg
magenta is 95% coverage, mustard is undamped:

http://i254.photobucket.com/albums/h...ps76136929.jpg







if you're interested here are the waterfall graphs from the materials:
SDS:
http://www.diymobileaudio.com/forum/...8-post261.html
Raamat:
http://www.diymobileaudio.com/forum/...6-post386.html
Dynamat:
http://www.diymobileaudio.com/forum/...8-post275.html
Knuconceptz:
http://www.diymobileaudio.com/forum/...2-post276.html

[SSLance]

I used the RAAMmatt stuff as well and I did the whole floor and inside the doors and under the quarter windows with BXII and behind the rear seat back with Ensolite. Only part I didn't do was under the headliner as I've never pulled my headliner out.

I'm very happy with the quality and performance of the RAAMmatt products, it made a huge difference in the sound and heat transferred to the inside of the car. Price was right and the service was great.

[juggernaut]

I'm a "best bang for the buck" kind of guy. I found dynamat's price ridiculous. All of the peel and stick stuff looks like same thing, I'd have to see definitive evidence that its not. The thickness may vary; Its all asphalt lined foil. I used b-quiet Ultimate and Vcomp.

I also bought some stuff called Flex-clad from Distribution International . Its not as sticky as b-quiet but, it was 70$ for 100sq/ft. It is used in industrial applications. I also bought 1" thick closed cell foam from Distribution Internation for 30$ for a 3'x5' sheet.

I did bquiet ultimate and Vcomp on the fire wall, Bquiet and foam in the doors, quarters and trunk, just bquiet/flexclad under the carpet and just foam on the roof.

[scott_fx]

I'm a "best bang for the buck" kind of guy. I found dynamat's price ridiculous. All of the peel and stick stuff looks like the same stuff, I'd have to see definitive evidence that its not. The thickness may vary; Its all asphalt lined foil.
.

It's not asphalt lined foil, some use vinyl (mlv), some don't stick well, some smell horrible, etc... I agree that dynamat is ridiculous, but that is due to marketing i'd have to assume.

look at some of the links i posted above, it proves they aren't the same since they all react differently when measured using the same technique

[cwylie]

http://www.lsxtv.com/news/new-produc...-percent-less/

Saw this stuff the other day online. Not sure if anyone has used it.

[Nothingface5384]

I'll show you evidence on about 15 plus brands on how they did..on phone and at work so may be a bit
If memory serves correct top 3 were sds ,murder mat, and colossus

Also not all are asphalt based...Most are butyl based..
None have mlv...excluding murder mat having a top layer of mlv which you can keep or peel off...

[Nothingface5384]

http://www.diymobileaudio.com/forum/...testing-9.html

Just so you know cld is mainly for panel vibration resonance
MLV coupled with ccf would be best for airborne noises
A d a heat matting for heat

[67rally]

This topic gets tossed around every few months. It's probably hard to beat the Dynamat stuff if budget isn't a concern.

I used a product called FatMat RattleTrap. Some people say it's made of asphalt and doesn't stick. I think those are the same people that just copy and paste information from other forums. It's butyl based and sticks extremely well. You just need to prep and clean the floors before laying it down. Treat them like you were going to paint them (remove any loose stuff, prep spray, let dry, etc.)

I covered my entire floor, rear seat back divider, trunk floor and inside of the exterior and interior door shells a couple of years ago. Last year I had to modify my tunnel for a T56 shifter and getting the RattleTrap off the section I had to cut out was a huge pain to remove.

FatMat took out all the rattles, and made the car sound considerably more solid. It does not cut down on road noise significantly, although that's not it's intended purpose.

[rohrt]

Nick

I looked for you at the 4th Street cruise. I'm pretty sure I saw you up ahead of me once then it looked like you jumped out of line and disappeared. That event was huge. Good times

I really like the Damplifier Pro from secondskinaudio.com for a peal and stick product. Maybe just because the metal is black and not silver I used it in my bird. My bird gets really hot on the floors in the summer with big motor and big exhaust. The one thing It could use is a thermal barrier on top of the damplifier pro. It helps with the heat to a point but still comes through.

If I had to do it all over again I would use the spray on Lizzard skin product. Not exactly cheap but people seem to love that stuff.

I just got my 64 tempest back on the road and I used the factory tar mats in it and a combination of several other products. The factory type tar mats work great too. I didn't have anything under the carpet before. My floorboards are not the best and its a convertible so I'm not going to get Cadillac quiet but I can tell a big difference.

Some of the work I did with the tempest.
POR the floor boards
Used some bulk pack damplifier under the dash and on the inside doors just small pieces in a lot of different places. (BTW I don't recommend regular damplifier. Its just to thin go with Pro)

I used some the frost king stuff under the dash and on the kickpanels. I really didn't care for it much but worked pretty good in those areas. I have a feeling it will be falling off at some point. I was amazed at how much insulation GM used in these cars, but after 50 years must of it was just dust. I guess I only have a pic of the kick panel, and not under the dash.



This show how cheap Iam sometimes. You can see some of the tar matts from ACC on the floor. I also used a thermo blanket I pull of my old dishwasher to put under the back seat area.



This is what I used under the door panels. This is some hardwood floor underlayment. It has a plastic vapor barrier on the inside and a dense felt material on that you see on the other. Its like a 1/8 thick. The cost per roll is expensive but like I said its made for homes under the hardwood floor to absorb foot noise. I had some left over.



One other product I got cheap was a anti-fatigue matt from Sears. Its about a 1/4 thick. In my case I used it as a trunk matt. My car is a driver and with kids and luggage I wanted to have something to keep everything from sliding around. It has a diamond plate look and works for me. I think this type of matt would also work well for a insulator too IMO. This matt was pretty big and worked great in the trunk. It was about $25 at Sears. I would think two of them would cover an entire firwall and floor. I should have just glued this under the dash instead of the frost king stuff I used.




If you really want to goes balls deep into looking at all the products out there. Here is all my notes and comments that I collected while researching what I was going to do. Yeah sometimes I get board.

There is no Best! No best tires. No best engine. No best shock. No best big chrome foot gas pedal. Every car builder and driver is in a different situation. What's good for one might suck for another. The decision on what is "best" for you and your car is completely up to you. As with any decision time, effort, and research is needed by the decision maker - you! Instead of asking what is "best", do some research, explain your situation in excruciating detail, and describe what alternatives you're considering in your decision. Posting a thread with "What's the best..." in the title it is a sure way to get that post tossed into the Tool Shed.

Great site that explains most of the products out their
http://choices.obviously.com/thermal...und_insulation



http://www.lobucrod.com/
http://www.cascadeaudio.com/car_nois...l_products.htm
http://www.insulshield.net/
http://www.designengineering.com/ boom-mat
http://www.koolmat.com/


http://www.metalshield.com/testimonials.html
http://www.lizardskin.com/car-ceramic-insulation.html

http://store.secondskinaudio.com/
http://www.heatshieldproducts.com/automotive
http://www.jcwhitney.com/heat-shield...2669j1s17.jcwx
http://www.stockinteriors.com/HeatSound.asp?Itemid=4783
http://www.quietride.com/catalogpdfs/gma_catalog.pdf
http://www.thermotec.com/

Comparison and tech data
http://www.b-quiet.com/compare.html

Evercoat - Q-pads???? Sold at local autostores

Thermozite: specific R= 1.3 (standard R= 3.7) {http://www.perfectfit.com/15269/154086/Carpet--Padding/Thermozite.html} Price: ~$1/sq.ft.
KOOLMAT: standard R=1.65 {http://www.koolmat.com/what.shtml} Price: $14/sq.ft.
EZ Cool Insulation: specific R= 1.6 {http://lobucrod.com/} Price: ~$0.68/sq.ft. - I am not so sure about the claimed R-values and the material collapses easily.
VB-3 with lead septum: specific R= 1 (standard R = 4) {http://cascadeaudio.com/car_noise_control/car_barriers.htm} Price: ~$17/sq.ft.
VB-4 barrier: specific R= 1 (standard R = 4) {http://cascadeaudio.com/car_noise_control/car_barriers.htm} Price: ~$8/sq.ft.
These values are in general agreement with the tabulated information for polymers provided in the Wikipedia article.

Spray On
•Boom Mat (spray-on) – rattle can based spray-on insulation
•CoolCar- paint-on ceramic based insulation http://www.coolcarceramic.com/default.htm
•eDead (v3) -paint-on latex polymer
•eDead (v5) -paint-on ceramic microsphere polymer
•LizardSkin – paint-on ceramic based insulation
•NoiseKiller – paint-on insulation
•QuietCar – paint-on viscoelastic polymer based insulation
http://www.metalshield.com/testimonials.html

Roll on
•Audio Technix – butyl (possibly asphalt) rubber based insulation with 1 side of aluminum
•Boom Mat (Damping Material) – butyl rubber based insulation with 1 side of aluminum
•B-Quiet Ultimate (Brown Bread) – butyl rubber based insulation with 1 side of aluminum
•CSI Heat Shield – fiber tech padding based insulation with 2 sides of aluminum
•Dynamat (Dynamat Xtreme) – butyl rubber based insulation with 1 side of aluminum
•eDead (Butyl Mat) – butyl rubber based insulation with 1 side of aluminum
•eDead (TekLite) – closed cell neoprene based insulation
•EZ Cool Insulation – closed cell neoprene based insulation with 2 sides of aluminum
•FatMat – asphalt based insulation with 1 side of aluminum
•Hushmat Silencer Megabond – butyl rubber based insulation with 1 side of aluminum
•Hushmat ULTRA – visco-elastic polymer (butyl rubber) based insulation with 1 side of aluminum
•MegaMat – FatMat or FatMat Mega Mat, asphalt based insulation with 1 side of aluminum
•Milla Mat – FatMat, asphalt based insulation with 1 side of aluminum
•RAAMmat (RamMat) – butyl rubber based insulation with 1 side of aluminum
•Second Skin (Damp Pro) – butyl rubber based insulation with 1 side of aluminum
•Second Skin (Luxury Liner) – mass loaded vinyl based insulation
•Second Skin (Luxury Liner Pro) – mass loaded vinyl with layer closed cell neoprene
•Second Skin (Heat Wave) – natural fiber (better than jute) based insulation with 1 side of aluminum
•Second Skin (Overkill) – closed cell neoprene based insulation with 1 side of aluminum
•Thermo-Tec Cool-It Mat 146xx series – butyl rubber based insulation with 1 side aluminum
•Thermozite – environment friendly (post consumer recycled plastic bottles) based insulation with 1 or 2 sides of aluminum
•ZillaMat - asphalt based insulation with 1 side of aluminum (possibly re-branded FatMat)

[496elcamino]

This is great for late-comers digging info. I read this last post and searched out many of them and will use the second skin on the El Camino, first putting damper pro, with 4 mats of LLP . Thank you Nick for all the links!