I ripped out the interior of my 69 today to fix some rusty area on the floor pan. I was surprised to find that the interior was original; the green vinyl had just been dyed (painted?) black. Held up pretty well for 32 years!.

Anyway, the question is what to put under the carpet which I am going to replace (not original). I want to quiet it down as much as possible. You can imagine the condition of the original asphalt paper and jute insulation.

The kits from Rick's and others come with a padding. They also sell the asphalt paper and/or a dense rubber. Anyone used these and have an opinion?
Or is there something better on the market?
I'm looking to make it as quiet as possible.

Thanks http://www.camaros.net/forum/biggrin.gif
Joe


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69 396 w/SS Trim, B&M TH400, 3.55 12 Bolt Posi, Blue w/White Z28 Stripes, Chrome Rally Wheels
Badboatdude@CS.com
69 Pics http://albums.photopoint.com/j/AlbumIndex?u=1506559&a=11674961

[This message has been edited by Joe G (edited 02-26-2001).]

Gheatly, ring in here. What's that stuff we we're talking about at Hooters? You know, the spray stuff. I'll try an search for it.....KZ

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John D. Smith
69' SS/396

Dynomat?

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http://www.67rs.com/macphreak4evr/chrissig.gif
Chris's 67 RS can be seen at http://www.67rs.com
JOIN THE CAMARO NET WEBRING! http://nav.webring.yahoo.com/hub?ring=camaronet&list

[This message has been edited by Chris Edwards (edited 02-26-2001).]

Is it waterproof? I tried some of the sound pad with the foil backing and got it wet when I washed the car. Soaked up like a sponge. Took two days to dry it completely.
After I have the rust repaired, the last thing I want to do is put a sponge under the carpet! http://www.camaros.net/forum/biggrin.gif
Thanks
Joe

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69 396 w/SS Trim, B&M TH400, 3.55 12 Bolt Posi, Blue w/White Z28 Stripes, Chrome Rally Wheels
Badboatdude@CS.com
69 Pics http://albums.photopoint.com/j/AlbumIndex?u=1506559&a=11674961

The Dynamat is great stuff. Haven't yet used it myself so I can't say about water resistance. I know a person that had his floors sprayed with the stuff they do pickup beds with. I want to talk to the place and see what they say. I'm going to need to do my floors, too.

Wow, I never thought of the pickup bed sealer. It sounds like a great way to waterproof but I wonder if it would have an odor?
Anybody done their bedliner with that stuff and notice how strong the smell is?



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Joe
HwyStar@Rochester.rr.com

DYNAMAT!!! i've used it for years and my cars are so quite that the police need louder sirens. It's not cheap but worth every penny, cover the entire floor, firewall and doors inside and out.

Jenndon, does it absorb water?
Where did you get it? I saw it in Summit. You're right; it is expensive but if it's good it's worth it. Does it come in larger sizes?
Thanks http://www.camaros.net/forum/biggrin.gif
Joe

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69 396 w/SS Trim, B&M TH400, 3.55 12 Bolt Posi, Blue w/White Z28 Stripes, Chrome Rally Wheels
Badboatdude@CS.com
69 Pics http://albums.photopoint.com/j/AlbumIndex?u=1506559&a=11674961

[This message has been edited by Joe G (edited 02-28-2001).]

joe
I didn't notice any particular odor when I had the bed of my el camino sprayed. It definitely cuts down on noise.
But, for the interior I used Rubberized Undercoating. You can get spray bombs in any parts store. The rubberized stuff goes on nicely and dries to a hard finish.

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Rick Schaefer
68 Camaro
72 El Camino (http://members.home.net/jimmy4/rick1972elky.html)
TPI350/700r4 (http://chevelles.com/showroom/ricks%20motor%20-L)

I put in the synthetic jute.I never thought about it getting wet.If the car's sealed up it should'nt get wet.I think it cost about 15$ to do the floor,rear seat,and package tray.I had some left over,put it in my other car.

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68 z28 ,68 rs 327 ,73 454 vette, 2 goofy kids

Dynamat is the ultimate but does cost more. Different varieties of it are available. The original varitey looked like it had a tar/asphalt mixed with other "heavy" particles of whatever. It basically eliminates resonance over a broad range of frequencies--if the panel can't resonate with the road noise, it can't transmit it into the interior very well. It is pressed to less than an 1/8th inch thick and has adhesive on the back. If you can afford to cover every area of metal, even an old camaro can be as quiet as a Lexus. I am working on damping sounds as I go and will be using Dynamat extensively. It beat bedliner and undercoat by a long shot but costs more. You might work a combination of materials to keep costs down. Dynamat the floors and doors to kill the most noise.

which type of dynamat is the best and is it waterproof?

Dynamat doesn't absorb water, you can get rolls that are 33 sq yards for around $100, i used 3 of these in mine..cover every inch if you can....try a local stereo shop if you can or contact dynamat and they can help you.
the super or the nex extreem works the best.....they have foil that help reflect heat

did i say yards?
Square feet

[This message has been edited by jenndon (edited 03-01-2001).]

backfire: after u put the dynamat down did u use the jute padding under the carpet or just lay it over the dynamat? i am going to do mine.

I would go ahead and put some padding under the carpet to give it a better feel and to make it even just a little quieter. The dynamat is thin and doesn't make much cushion. Just make sure you don't have any leaks. If you take out the kick panels, there is a vent hole. If you spray water on the hood without the kick panel hole sealed properly, water will run along the cowl and down into that opening allowing water to collect in the floor pan. Learned this the hard way.

Dynamat will stick to most curves but the type I used in the past works better when you heat it with a hair dryer or other SUITABLE heat source.

Lance

Thanks! I'll try to find some. I know about the leaks, too. That's why I have to do all this!! Also why the questions of water absorbtion.
Joe

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69 396 w/SS Trim, B&M TH400, 3.55 12 Bolt Posi, Blue w/White Z28 Stripes, Chrome Rally Wheels
Badboatdude@CS.com
69 Pics http://albums.photopoint.com/j/AlbumIndex?u=1506559&a=11674961

If your asking me about dynamat water absorbtion, I would have to say in my experience that it doesn't abosrb any water. But water can get under the adhesive backing in places where it didn't stick totally and might allow rust to get going. Optimum idea would be to POR 15 the metal then apply Dynamat. Mo money, mo money....

I just painted the floor pans with POR 15. So at least I have a fighting chance! http://www.camaros.net/forum/biggrin.gif
Joe

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69 396 w/SS Trim, B&M TH400, 3.55 12 Bolt Posi, Blue w/White Z28 Stripes, Chrome Rally Wheels
Badboatdude@CS.com
69 Pics http://albums.photopoint.com/j/AlbumIndex?u=1506559&a=11674961

[This message has been edited by Joe G (edited 03-04-2001).]

I've used Dynamat in every street rod and Cobra I've built, and lined the inside of my tube-frame Grand Sport with it - best stuff ever made for sound damping. Cut it carefully do get the best joint match from one piece to the next, and use a heat gun (carefully!) to help mold it into place and to activate the adhesive - also helps to use a 1"-wide wallpaper seam roller to help mold it into place over ribs, etc. Then install your carpeting with the usual jute backing and you'll have great appearance, feel, and a much quieter ride. Eastwood carries it, or their website ( http//www.dynamat.com ) will lead you to distributors (or check with your local car stereo installation shop and see where they buy it).

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JohnZ
'69 Z28 Fathom Green

Thanks for the tips, John.
Sounds like good stuff. Just what I'm looking for.
Joe


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69 396 w/SS Trim, B&M TH400, 3.55 12 Bolt Posi, Blue w/White Z28 Stripes, Chrome Rally Wheels
Badboatdude@CS.com
69 Pics http://albums.photopoint.com/j/AlbumIndex?u=1506559&a=11674961

JohnZ, I went to the website as suggested. Thanks; cool stuff.
Since you have used it before, is there much real difference between the different styles?
I guess the more you pay, the quieter it gets! http://www.camaros.net/forum/biggrin.gif
Thanks again.
Joe

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69 396 w/SS Trim, B&M TH400, 3.55 12 Bolt Posi, Blue w/White Z28 Stripes, Chrome Rally Wheels
Badboatdude@CS.com
69 Pics http://albums.photopoint.com/j/AlbumIndex?u=1506559&a=11674961

Joe -

Haven't bought any in a couple of years, but the denser it is (and more $$), the more effective it will be. They also make it now with a heat barrier, which would have saved me using another layer of "Thermo-Tec" in the past. Progress...... http://www.camaros.net/forum/biggrin.gif

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JohnZ
'69 Z28 Fathom Green

Just got my new Summit catalog. Dynamat is on page 267. I think I'll give it a try too!