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Reload Thread: Huge Deadener Comparison

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    Re: Huge Deadener Comparison

    Quote Originally Posted by #45 View Post
    i'll prolly get a lashing, but i'm always weary of "bias'ism", if you will of tests on products when one of the products tested is so proudly and prominently displayed in the sig. i'm sure its all legit in all...just saying it never "looks" good when doing serious tests.
    You should see the AT 80 mil. Then you would understand.



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    Re: Huge Deadener Comparison

    I have 3 layers of the 60 mil AT on my trunk lid and it was over 100 for 3 days straight, and it didnt move at all. Great stuff and great value imo.




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    Re: Huge Deadener Comparison

    Overall RAMMat and tech 60 are by far the better value. Guess I know where to look from now on.


    PS- edead 80 s ucks big things want stick at all. Fattmat 50 seems to do alot better has a slight smelll that goes away after awhile. I live in louisiana and for ther past 6 days its been over a 110 degress with no issue at all. Oh and it sticks like glue once u stick it it stays.....Oh and the best part is it stopped all my rattles and I didnt even have to do full coverage. Fattmat can be had for $38 for 25sq ft. Yea its not the best but it does the job very well. And yes it does have a smell but it will go away or you will get use to it one or the other.
    Last edited by disturbed471985; 06-26-2011 at 02:12 AM.



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    Re: Huge Deadener Comparison

    I made the mistake of buying Edead 45 because of the price and regret it now... it's been in my car for over a year in some pretty extreme temps -30 or so up to about 100 and I've had no issues with it sticking. My complaint is that I had to use a **** ton to get the results I was looking for. I used almost 40 sq feet on my doors. Oh and there is no way that it is aluminum backing... it has to be some kind of plastic.



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    Re: Huge Deadener Comparison

    ed80 is no better and its not even cheap... Many layers will be needed and over time the corners will start to come unglued. I mean really its junk my whole trunk lid is covered in 25sq ft I got it off here for $28 shipped now I see why it was cheap



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    Re: Huge Deadener Comparison

    Quote Originally Posted by disturbed471985 View Post
    Overall RAMMat and tech 60 are by far the better value. Guess I know where to look from now on.


    PS- edead 80 s ucks big things want stick at all. Fattmat 50 seems to do alot better has a slight smelll that goes away after awhile. I live in louisiana and for ther past 6 days its been over a 110 degress with no issue at all. Oh and it sticks like glue once u stick it it stays.....Oh and the best part is it stopped all my rattles and I didnt even have to do full coverage. Fattmat can be had for $38 for 25sq ft. Yea its not the best but it does the job very well. And yes it does have a smell but it will go away or you will get use to it one or the other.
    In the oven FatMat slid and the edead did not. The "aluminum" aka plastic wrinkled up on the edead. Peel & Seal has the worst smell ever, FatMat smells very similar but the smell seems to go away while the Peel & Seal smell stays. As with all product results seem to vary from person to person.


    Quote Originally Posted by UMWDawg92 View Post
    I made the mistake of buying Edead 45 because of the price and regret it now... it's been in my car for over a year in some pretty extreme temps -30 or so up to about 100 and I've had no issues with it sticking. My complaint is that I had to use a **** ton to get the results I was looking for. I used almost 40 sq feet on my doors. Oh and there is no way that it is aluminum backing... it has to be some kind of plastic.
    I have less than 25 sq ft total of AT 60 mil on my 4 doors and they are very solid.




  7. #22
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    Re: Huge Deadener Comparison

    Quote Originally Posted by Cthedinger View Post
    I have less than 25 sq ft total of AT 60 mil on my 4 doors and they are very solid.
    I'll make sure I get some proper deadener when I do my trunk, rear deck and probably redo my front doors as well. This is a great test by the way and I think you're doing a great job of staying unbiased and honest.



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    Re: Huge Deadener Comparison

    Quote Originally Posted by Cthedinger View Post
    In the oven FatMat slid and the edead did not. The "aluminum" aka plastic wrinkled up on the edead. Peel & Seal has the worst smell ever, FatMat smells very similar but the smell seems to go away while the Peel & Seal smell stays. As with all product results seem to vary from person to person.




    I have less than 25 sq ft total of AT 60 mil on my 4 doors and they are very solid.
    No doubt never said fattmat or rattle was even near the best but it does do its job very well. I mean the oven test dnt lie but It never gets above 140-150 inside my car when sitting in parking lot and it has yet to move 1 inch. Again I am not saying its the best but for 70-$80 for 100sq ft its darn good. I mean If my car ever reaches oven temps then the deadner will be the last of my worries..

    If u got money I say tech or ratt but if u are a broke man like me fatt or rattle will do the job and I am sure of that.



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    Re: Huge Deadener Comparison

    There are reasons I stopped publishing comparative test results when I started selling products. The most important is that even if I could have been relied upon to try to be completely objective, it just isn't possible with a stake in the outcome. That's fundamental in any scientific endeavor. It's pretty clearly at play here.

    Knowing what the temperature is and maintaining it is critical. With the oven readout and a single uncalibrated thermometer, we can only guess that the temperature was somewhere between 160F and 220F, with frequent cycling between the extremes. The samples need to be protected from the heating element when it is on. Steps should be taken to mitigate the temperature changes that inevitably occur in a standard oven. The fact that the sample plate cooled unevenly provides a good indication that it was heated unevenly. The samples should not have been touched until the entire plate had cooled to stable room temperature. Peeling them off when they are "cool enough to touch" is inaccurate and doesn't provide any usable information as a result.

    Temperature is really important. 160F-170 is what you can expect at the sheet metal when a vehicle is parked in the sun on a hot day. If the experiment had followed it's original design, it would have duplicated what the materials are exposed to in less than one summer day. Not sure why anyone would do that. 200F-210F is a better range. I've tested all of these products, except Audio Technix 80, for 8 hours at 200F-210F and got very different results. If you heat a polymer above its intended operating temperature, you can get some idea of how it will perform over time.

    The conclusion that P&S and FatMat are significantly different and that odor can be attributed to one and not the other in these conditions is puzzling.

    Sliding after 8 hours is a huge problem, but the important information comes from examining the adhesive after the test. Here's where tester bias and not knowing what to look for are factors. We saw a wresting match with the Audio Technix products and saw how easy it was to remove the Second Skin products. There are two possibilities - adhesive failure, where the separation occurs between the adhesive and substrate (or constraining layer) and cohesive failure where separation occurs inside the adhesive. Adhesive failure, as long as it occurs above the required adhesive bond strength, is superior. Anyone familiar with products like these would say: "Wow, the Second Skin peeled off cleanly after 8 hours in the oven". Interestingly, high quality butyl adhesives gain bond strength over time. It's useful to test the performance of freshly applied samples against those that have been installed for a few days.

    I'm not suggesting that the tester was being intentionally dishonest or that this test was staged to conceal a defect in his own products. What I am saying is that the test wasn't even close to being rigorous enough to reveal anything useful. The conclusions being drawn are incorrect - other than heating asphalt to its melting point, will melt it.

    There's just no way around the fact that even with experience and the best of intentions, our brains are going to protect us from conclusions that work against our livelihood. It's as simple as that. When I see the tester's Web site meta title is "Deadener Better Than Dynamat" - a claim that is false in any qualitative way, it seems safe to view this "test" as an ad. Tests like these are sloppy enough when done by an unbiased party. When there isn't a methodology established beforehand and adhered to, sloppier still. That'd be fine for in house playing around to familiarize oneself with products. Does it belong in the public domain as proof of anything?




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    Re: Huge Deadener Comparison

    I would be interested to see how the fatmat megamat compares since it is also a butl based product like second skin.



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    Re: Huge Deadener Comparison

    Quote Originally Posted by cthedinger View Post
    I am the owner of Audio Technix. I will not say my 60 and 80 mil are the best on the market but I do believe they are the best bang for you buck.

    I understand that some people will have there doubts about these tests because I am the owner of Audio Technix but I am not honestly going to cheat the tests if another company does better than I will show that.
    Quote Originally Posted by whitedragon551 View Post
    Ive been saying the test was useless and biased and no one wanted to believe me.
    Cause your a meany face



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