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fat mat vs. dynamat?


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downstarinc 
Copper - Posts: 120
Copper spacespace
Joined: October 22, 2005
Location: United States
Posted: November 03, 2005 at 11:35 PM / IP Logged  
ok i kno dynamat is the most popular brand but what about fat mat? i heard that its better but ive never used it? any suggestions?
jl audio..nuff said
palouse md 
Member - Posts: 20
Member spacespace
Joined: October 11, 2005
Location: United States
Posted: November 04, 2005 at 12:25 AM / IP Logged  
copycat....everyone copies dynamat for a reason
md
rudeman 
Member - Posts: 11
Member spacespace
Joined: May 27, 2005
Location: United States
Posted: November 04, 2005 at 6:58 AM / IP Logged  
Try this:
Sound Deadener Showdown
Dynamat X is twice as thick, uses a butyl adhesive instead of asphalt, Has a much higher heat tolerance. Has a thicker aluminum foil constraining layer.
The only reason to think FatMat is better is because FatMat says it is. Dynamat Xtreme is better in every way. That said, there are some products that are better than Dynamat and several very good products that are much less expensive.
Don Sambrook
Alpine Guy 
Platinum - Posts: 2,494
Platinum spaceThis member has made a donation to the12volt.com. Click here for more info.spacespace
Joined: October 18, 2003
Location: Canada
Posted: November 04, 2005 at 9:52 AM / IP Logged  
We really should make that website link a sticky on this site, you did a good job on that research.
2003 Chevy Avalanche,Eclipse CD7000,Morel Elate 5,Adire Extremis,Alpine PDX-4.150, 15" TC-3000, 2 Alpine PDX-1.1000, 470Amp HO Alt.
rudeman 
Member - Posts: 11
Member spacespace
Joined: May 27, 2005
Location: United States
Posted: November 04, 2005 at 10:06 AM / IP Logged  
Thanks very much :) It's now at around 3,000 readers and from the messages I get, it seems to be helping. I am happiest with the one's who tell me they have wanted to do this for some time, but were confused by all of the "noise" in the market. Read this and were able to go ahead and do it.
Don Sambrook
youngone 
Silver - Posts: 269
Silver spacespace
Joined: September 28, 2005
Location: United States
Posted: November 04, 2005 at 8:22 PM / IP Logged  
now hold on i havent read the hole thing yet i gust had to say this. howabout   not useing the pell and seal thing. what me and my dad did on his 63 jag e-type is use contact cument the kind that you get at a lumber yard or lowes its used for putingin mica counter tops and it works great to get the stuff on there. insted of useing the weak adheseve on the mat, it worked great and once you put that stuff on there i DOS NOT COME OFF iv tryed. and we used fat-mat. i thank you for taking the time to do this it is very interesting and helpful please tell me what you think of useing the contact cumeint as a adhesive. im going to go outside and se if i can peal it up. i gust tryed and it did come up but after a little strugle but the pice i puled up was the corner that came to a triangle so that made it alot esiar to pull up. we did not prep the surface as you did and propibly sould have sanded it alittle to get it to stick beater. if the only problem was the adheseen in some of those cases then im sure that there are some other kinds of heat resistent adheasive that would work well. ill do some experimenting and post my results on this forum. tell me what you think of the contact cument thing though. good job and please stay active on this forum we could use some good expirementers on hear.
Aaron   posted_image posted_image posted_image posted_image posted_image
Want to know some good equipment- JL,Adire Audio,Mcintosh,Brax,Helix,Eclipse,JBL,RE,Dimoand Audio,Zapco, pritty much anything DYhon,Forbidden recommend
On the12volt you give some info and you get in
rudeman 
Member - Posts: 11
Member spacespace
Joined: May 27, 2005
Location: United States
Posted: November 04, 2005 at 8:53 PM / IP Logged  
Adhesive failure is one issue with asphalt mats. MFM actually sells a spray adhesive to use with Peel & Seal.
There are other factors to consider. In a hot climate, the asphalt can melt over time - actually turn to liquid and soak into places you don't want it. Then there's the smell.
Finally, maximum viscoelastic effect occurs in a fairly narrow viscosity range. asphalt becomes harder at a higher temperature and softer at a lower temperature than butyl, so butyl will work better over a wider range of temperatures.
That said, while butyl is better than asphalt, asphalt will work better than nothing. My main point in doing this was to debunk the claims that, for example, FatMat is "Better than Dynamat Xtreme".
Don Sambrook
youngone 
Silver - Posts: 269
Silver spacespace
Joined: September 28, 2005
Location: United States
Posted: November 05, 2005 at 7:32 PM / IP Logged  
tell me what you think of this. we also used a exersise mat its like rubber or something you can get it at lowes and its pritty thick. it seams to work gust fine i dont no how it would do in the place of sound deadener. but it is good and absorbeint. im gust trying to find something that isent used for sound deadening but will work gust as good as the high prised stuff like dinamat extream. like some sourt of plastic or gust a thick sheet of the stuff that extream is made out of. and would rubber work good in the place of the sound deadening, the stuff i have is very absorbent. there has to be something out there that works gust as good and is cheap. posted_image
Aaron
Want to know some good equipment- JL,Adire Audio,Mcintosh,Brax,Helix,Eclipse,JBL,RE,Dimoand Audio,Zapco, pritty much anything DYhon,Forbidden recommend
On the12volt you give some info and you get in
rudeman 
Member - Posts: 11
Member spacespace
Joined: May 27, 2005
Location: United States
Posted: November 06, 2005 at 5:55 AM / IP Logged  
It depends what you are trying to do. Products like Dynamat reduce vibration. Foam absorbs sound. Usually you want both.
I tried to do exactly what you ae doing, find something cheaper. I lookes at roofing supplies, just about anything I could think of. I couldn't find anything as good, so I wanted to look at Dynamat competitors to see how they stacked up.
I suggest that the cheapest good alternative is RAAMmat. Won't have a problem there. Second Skin Damplifier is much less expensive than Dyna X and better too, so there are plenty of options.
Don Sambrook

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