fatmat does take a good month to recieve...
everyone loves to bash it around here but the truth is that it wont fall off and it works great...i have done several vehicles with other deadeners mentioned in the deadener soundoff and the truth is that not a single one of them standed out as wow thats life changing...each had their own chairictoristics but dont let allthese people saying fatmat sucks fool you.... its not bad at all and does the job quite well without the horrid smell most of the others leave behind. Its nice cheap and works great for what it is.... i use it in all my installs now. I'm not gonna spend 2-3 times more on a product that does nothing more for me. I have never had a piece fall off or even start moving.
Any specific substantiation for these claims? Hundreds of people have contacted me with evidence of asphalt mat, including FatMat, failure. None have reported butyl mat failure.
On what do you base your claim that it works great? It is one of the lightest products out there and is asphalt, so viscoelastic damping is out of the picture. More to the point, can you name a single characteristic that is ANY different than Peel & Seal that can justify the added expense and inconvenience?
What people need to ask themselves is why I would waste my time campaigning against a cheap and effective product when that is what I set out to find. FatMat tells people I work for RAAMmat, others say I work for Second Skin and still others that I'm in Cascade's pocket. Might be nice for me if it were true, but I assure you it is not. I'm just looking for the truth in a market that has been full of dishonest claims.
If you have information that contradicts what I have observed and what several scientists specializing in automotive NVH have told me, I would love to have the details. "It worked for me" isn't really going to do it, any more than "I smoked a pack a day for 50 years" convinces me that smoking is a wise choice.
I'm not being sarcastic. 2 years of studying this stuff have led me to the conclusion that asphalt is unreliable, risky and ineffective when compared to other options. Not saying that if it doesn't fail it will be better than nothing, just that as a material it is only good for the profits of those selling it, not for anyone using it. You are frankly the first person who I have heard make the statement that having used both asphalt and butyl products, you can't see any performance difference. Perhaps you are setting the bar too high by expecting a butyl vibration damper to be life changing - reliable and much more effective is enough for me.