Easy Dynamat Questions
Thread Starter
Racer
Joined: Aug 2003
Posts: 332
Likes: 0
From: The Great State of WI
Easy Dynamat Questions
Do you remove the factory insulation and replace it with the dynamat, or does this just go over the top?
Do you have to cover every square inch of the cabin of the car?
Is it a worthy project since I am taking out the interior to do an install?
How much Dynamat does it take to do a decent job, and how much should I expect to spend?
I wouldn't mind a pic or two to look at either :yesnod:
:seeya
Do you have to cover every square inch of the cabin of the car?
Is it a worthy project since I am taking out the interior to do an install?
How much Dynamat does it take to do a decent job, and how much should I expect to spend?
I wouldn't mind a pic or two to look at either :yesnod:
:seeya
Team Owner
Joined: Feb 2000
Posts: 51,504
Likes: 6
From: Sacramento CA
Re: Easy Dynamat Questions (bart15)
first off, dynamat is extremely expensive, there are lower cost alternatives that are just as good if not better, such as secondskin, raamat, cascade, and b-quiet.
the mat is applied DIRECTLY to the fiberglass panels. it goes under the factory insulation. dynamat is a dampening material and works by weighing down the panel its attached to.
mat will help to keep panels from resonating, and may help a small bit with road noise
every square inch should be covered.
60-70 square feet for a single layer.
the mat is applied DIRECTLY to the fiberglass panels. it goes under the factory insulation. dynamat is a dampening material and works by weighing down the panel its attached to.
mat will help to keep panels from resonating, and may help a small bit with road noise
every square inch should be covered.
60-70 square feet for a single layer.
Le Mans Master
Joined: Sep 2002
Posts: 8,991
Likes: 2
From: Hanger 18 Taxachusetts
Re: Easy Dynamat Questions (bart15)
I went with Brown Bread off ebay at a huge savings over Dynamat.
Too cold to put it in so can't tell you much yet but there are plenty of guys here that have done it.
You will need to get to the bare floor so it can stick then put the padding and carpet on top of it.
Too cold to put it in so can't tell you much yet but there are plenty of guys here that have done it.
You will need to get to the bare floor so it can stick then put the padding and carpet on top of it.
Team Owner
Joined: Apr 2002
Posts: 28,747
Likes: 41
From: Frankenstein never scared me. Marsupials do, because they're fassst…and they DART, THAT'S crazy!
St. Jude Donor '03 thru '26
Re: Easy Dynamat Questions (Kale)
first off, dynamat is extremely expensive, there are lower cost alternatives that are just as good if not better, such as secondskin, raamat, cascade, and b-quiet.
the mat is applied DIRECTLY to the fiberglass panels. it goes under the factory insulation. dynamat is a dampening material and works by weighing down the panel its attached to.
mat will help to keep panels from resonating, and may help a small bit with road noise
every square inch should be covered.
60-70 square feet for a single layer.
the mat is applied DIRECTLY to the fiberglass panels. it goes under the factory insulation. dynamat is a dampening material and works by weighing down the panel its attached to.
mat will help to keep panels from resonating, and may help a small bit with road noise
every square inch should be covered.
60-70 square feet for a single layer.
Here are some pics of my 35th after applying 4 layers of Brown-Bread.
I have some pics of the floorpan and firewall too but I can't remember what I did with them. :crazy: :lol:
Burning Brakes
Joined: Oct 2001
Posts: 1,205
Likes: 0
From: Dallas City IL
Re: Easy Dynamat Questions (bbvett)
175 sqft of Brown Bread in here. My only complaint is the thin metal foil. Don’t poke through it, because it's a tar mess underneath.
[Modified by M396 #00-011, 8:40 PM 2/18/2004]
[Modified by M396 #00-011, 8:40 PM 2/18/2004]
Melting Slicks
Joined: Sep 2003
Posts: 3,306
Likes: 2
From: Wesley Chapel Fl
Re: Easy Dynamat Questions (M396 #00-011)
Many companys make "Dynamat" material and almost all are less than Dynamat. If you cover the entire car you will notice a signifigant amount of road noise reduction. I have seen as much as 20db of interior volume drop. I wish I measured my C5 before and after but it was well worth it. Another thing you do not have to cover every inch. You can use it in strips or patches. It will work very well that way and save you a few bucks.
Burning Brakes
Joined: Oct 2001
Posts: 1,205
Likes: 0
From: Dallas City IL
Re: Easy Dynamat Questions (EatRice)
[QUOTE]I have seen as much as 20db of interior volume drop. I wish I measured my C5 before and after but it was well worth it. QUOTE]
Not a flame, but I would challenge this. I saw about a 6-7 dB drop with a certain material, and another member here measured about 8 dB only. What material did you use?
Not a flame, but I would challenge this. I saw about a 6-7 dB drop with a certain material, and another member here measured about 8 dB only. What material did you use?
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Melting Slicks
Joined: Sep 2003
Posts: 3,306
Likes: 2
From: Wesley Chapel Fl
Re: Easy Dynamat Questions (bbvett)
That was a complete interior with dbl layers on the floor. When I say complete I mean inner and outer door skins,floor,trunk,headliner,and complete passenger cabin....no dash was in the car. Measurements were taken with an Audio Control RTA. Car also had a Stinger carpet pad....which is a very dense closed cell foam with a layer of sound deadning material on it. I will see if I can dig up pictures of the car. This was done in my 1990 Honda Accord.
Give you an example of how quiet the car was....I was once sitting in the car while an old VW bug was running next to me. I was doing some paperwork in the car....I got out of the car and was startled by the VW because I did not hear it running. M396....you know how loud horns are....with the windows shut and system on full volume a person outside the car could barely hear the radio.
I know it is hard to believe but not impossible....I don't play around when it comes to my cars.Check out my sig and you will know what I am talking about.:)
Give you an example of how quiet the car was....I was once sitting in the car while an old VW bug was running next to me. I was doing some paperwork in the car....I got out of the car and was startled by the VW because I did not hear it running. M396....you know how loud horns are....with the windows shut and system on full volume a person outside the car could barely hear the radio.
I know it is hard to believe but not impossible....I don't play around when it comes to my cars.Check out my sig and you will know what I am talking about.:)
Pro
Joined: Mar 2001
Posts: 745
Likes: 0
From: Elkridge MD
Re: Easy Dynamat Questions (EatRice)
[QUOTE]That was a complete interior with dbl layers on the floor. When I say complete I mean inner and outer door skins,floor,trunk,headliner,and complete passenger cabin....no dash was in the car. Measurements were taken with an Audio Control RTA. Car also had a Stinger carpet pad....which is a very dense closed cell foam with a layer of sound deadning material on it. I will see if I can dig up pictures of the car. This was done in my 1990 Honda Accord.
QUOTE]
Besides the carpet pad, what specific product did you use?
QUOTE]
Besides the carpet pad, what specific product did you use?
Burning Brakes
Joined: Oct 2001
Posts: 1,205
Likes: 0
From: Dallas City IL
Re: Easy Dynamat Questions (EatRice)
That was a complete interior with dbl layers on the floor.
Melting Slicks
Joined: Sep 2003
Posts: 3,306
Likes: 2
From: Wesley Chapel Fl
Re: Easy Dynamat Questions (M396 #00-011)
M3.....I meant was I have seen that much of noise loss from using sound deadner but not every vechicle will get that kind of loss.
Stinger is the manufacture of the material I use. I have used every major brand out there except for brown bread. Not one has ever stood out more than the other. They all work very well as long as applied correctly. I use Stinger brand becasue the company is local to me. I buy at cost and the stuff works...I can not go wrong.
Stinger is the manufacture of the material I use. I have used every major brand out there except for brown bread. Not one has ever stood out more than the other. They all work very well as long as applied correctly. I use Stinger brand becasue the company is local to me. I buy at cost and the stuff works...I can not go wrong.
Thread Starter
Racer
Joined: Aug 2003
Posts: 332
Likes: 0
From: The Great State of WI
Re: Easy Dynamat Questions (M396 #00-011)
A follow up question:
How do you reattach some of the insulation that is held on by those push in retaining pins, and what about the screws that hold on the molding, etc?
BTW, how much does this stuff weigh? I'm not overly concerned with weight, but now I am curious.
:seeya
DonÂ’t poke through it, because it's a tar mess underneath.
BTW, how much does this stuff weigh? I'm not overly concerned with weight, but now I am curious.
:seeya
Burning Brakes
Joined: Oct 2001
Posts: 1,205
Likes: 0
From: Dallas City IL
Re: Easy Dynamat Questions (bart15)
The material, depending on brand will have different weights, but should be close to each other. Brown Bread weights .4lb per sqft.
I didn't have any troubles with clips and such, I just cut around them as I laid the material.
I didn't have any troubles with clips and such, I just cut around them as I laid the material.
Melting Slicks
Joined: Apr 2002
Posts: 3,268
Likes: 2
From: Minnesota in the summer, Las Vegas in the winter
Re: Easy Dynamat Questions (bart15)
I used insulation from http://www.eastwoodcompany.com item # 52142
Three rolls are more than enough, worked fine.......
Dynamat is item #52052
:thumbs:
Three rolls are more than enough, worked fine.......
Dynamat is item #52052
:thumbs:
Pro
Joined: Nov 2003
Posts: 543
Likes: 3
From: Camden AR
Re: Easy Dynamat Questions (brdd)
I would like to use one of these products in my C3 to help reduce road noise...but since it's a C3...I'll also need added insulation in the cabin (most are using reflect-x) how are ya'll combining the two...or are you...?
