I just bought some stuff called "4-pc anti-fatigue foam mat" from Harbor Freight on sale for $5.99 a set. It is 1/2" thick but could be stacked for greater thickness. I bought two sets which is more than enough to do a trunk floor. This stuff is made to stand on it, and it provides some give, but it is pretty dense. If it works acoustically, it would be a lot cheaper than specially made sound deadener. If anyone knows more about it I would like to hear your comments. This is the first I have come across this stuff. I thought it might be worth a look by others looking for a cheap way to sound deaden the trunk. I haven't got my amp and subwoofer hooked up yet, so I can't provide first-hand experience with it for awhile.
It may work as a sound barrier, but it won't do a lot unless you use it like one, which means you use it across the opening behind the seats and under the rear deck sealing the cabin from the trunk. Half inch is probably too thick for most applications , but it might work well in the foot wells to isolate your feet from vibrations. As far as it working like sound absorbing mats, I don't think that it will do so well. Peel and seal would probably work better if cost is your concern, but there is the risk of it failing in the heat.
If you just want to stop rattles rather than contain the bass within the car, and keep road noise out then you don't have to spend very much. you would only need about 1'^ piece of a real vibration dampener on each door skin. Then go get some foam tape from lowes/home depot, I think it's near the ventilation ducts, and put it on the back of the door panels where they touch metal, and some more behind the license plates. Most trunks have rubber stoppers that you can adjust to stop it from rattling, if not put some more foam tape there too.
that's where dynamat extreme is the best material but also the most expensive. It doesn't melt like the other cheap substitutes in hot weather because it's tar based and can handle extreme heat.
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that's where dynamat extreme is the best material but also the most expensive. It doesn't melt like the other cheap substitutes in hot weather because it's tar based and can handle extreme heat.
I would second Dynamat Extreme (I think you meant not tar based). I might recommend some others over Dynamat Extreme just because of the price like second skin, or Cascade V-Max, but I can't because I've got three layers of Dynamat Extreme in each of my doors, so I think that best describes my opinion on the matter.
that's where dynamat extreme is the best material but also the most expensive. It doesn't melt like the other cheap substitutes in hot weather because it's tar based and can handle extreme heat.
No offense but your wrong on two counts here; First any good sound deadener is made out of Butyl rubber and that grants the adhesive and sound deadening part of its nature. Second of all you DO NOT want any tar in your car at all. It stinks and tar does move in extremely hot conditions. Ask any motorcycle rider who put a kick stand on tar. Nine times out of ten that bike is going for a dive
ing a not so old thread Ok, so I think we can safely conclude that Dynamat is expensive (based on my experience), and based on what I'm reading, Peal n' Seal from Lowes, which is tar based is not a good idea. Now, Secondskin is pricey as well. My question is: Is it worth it? Would a competitor like Fat Mat, which goes for 130$ for 100 square feet do a good job? Thanks in advance!
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Fat Mat has a bad reputation because they were originally just peel and seal with a transformers logo printed on it, then they said that they changed to butyl rubber, but it was proved they they had in fact not changed anything. Then they said ohhh we didn't mean 100% rubber, it's mixed tar and rubber. That is about when everyone stopped trusting them.
Fat Mat has a bad reputation because they were originally just peel and seal with a transformers logo printed on it, then they said that they changed to butyl rubber, but it was proved they they had in fact not changed anything. Then they said ohhh we didn't mean 100% rubber, it's mixed tar and rubber. That is about when everyone stopped trusting them.
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ing a not so old thread
Ok, so I think we can safely conclude that Dynamat is expensive (based on my experience), and based on what I'm reading, Peal n' Seal from Lowes, which is tar based is not a good idea. Now, Secondskin is pricey as well. My question is: Is it worth it? Would a competitor like Fat Mat, which goes for 130$ for 100 square feet do a good job? Thanks in advance!
35 pages huh
With winter break coming up I can read thru it 
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