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Has anyone used FatMat sound dampening before? I was planning to use Dynamat Extreme, but FatMat is half the price on ebay. Is this stuff worth using, or am I better off sticking with Dynamat?
Take a look at RAAMat too. It looks like a great price and equal quality of Dynamat Extreme. I helped a buddy do FatMat on his doors a few months back and it smelled like tar paper for weeks in there.
Fatmat is crap. I used it once before, made a huge mess.
Yes it works to dampen sound, probably just as effectively as dynamat. However, ease of use and longevity means I'd rather pay more to get it done right.
all depends on how much you wanna spend and where you are putting it.... i am using dynamat extreme in some locations and raam in most. waiting for my raam this week and hopefully do fulll install this weekend including ensolite.
all depends on how much you wanna spend and where you are putting it.... i am using dynamat extreme in some locations and raam in most. waiting for my raam this week and hopefully do fulll install this weekend including ensolite.
Bringing back fond memories. Dont forget the photos
FatMat is claimed to be nothing more than Peel & Seal rubberized asphalt roof membrane and smells like it too for a few weeks. So you might as well buy Peel & Seal from a roofing supply company for an even lower price than you could buy FatMat. The moderate asphalt odor does go away in a few weeks. But if you don't want the odor at all you should buy a butyl based product like Rammat.
I took a different approach to sound deadening than anyone else here. At the local self service auto wrecking yard I used a chisel to loosen several large and thick asphalt sheets from the trunks of several 1987 Toyota Cressidas. I then heated them up on a teflon pancake platter placed on a barbacue grille and then, wearing cotton gloves, I applied the hot and almost liquified Cressida asphalt sheets to the floor and cab back panel of my Toyota pickup. For sound absorption, I glued a layer of cotton shoddy padding on top of the asphalt sheets. I acquired the shoddy padding from the trunks of 1990's Cadillacs in the same wrecking yard. I also glued this cotton shoddy padding to the insides of the door panels. However, since the insides of the door panels can get wet, I waterproofed the cotton shoddy padding with a coat of Kool Seal UV Resistant Patch & Coat - a water based, odorless (when dry) asphalt roof coating product available in Ace Hardware Stores. In sum, I soundproofed my trunk cab for about $25 worth of junkyard asphalt sheets and cotton shoddy padding and $20 worth of Kool Seal.
I have a hard time trusting anyone but dynamat extreme since i have used it before and it worked awesome. used fatmat once on a buddy's car and it sucked badly (smelled terrible forever!
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The raammat seems okay so far. I've only done the interior cavity of my rear wall, where the rear window slides down into. Did about 95% coverage with 1 layer, then did about another 55% coverage with a 2nd layer. Basically, because of the window motor, I got tired of adding layers so I only did a 2nd layer on what I could easily reach.
Then I added 2 layers on the inside of the big access panel that goes on the rear wall, and covered them with 1 layer of ensolite.
The raammat is extremely sticky and messy, but it gets easier to work with after you do a few feet of it and learn what works. When I asked Rick, he said that due to the war, some one ingredient had to be altered and it caused the sticky factor to increase. He commented that it actually made the product adhere better and dampen better, but made it messier to install. Don't know if that's true, just what he told me. Rick = owner of Raammat incase you don't know.
I will be doing the cab floor and rear wall tomorrow or Friday with Raammat also. I have enough to probably do the entire truck, as I ordered 125 sq ft, plus 6 yards of ensolite. I'm taking the approach of doing two layers on the rear wall (the part visible in the cab), then 1 layer on the floor, with 2nd layer in select spots like the deck the rear seats sit on (basically thinner metal), then will be covering the rear wall and floor with 1 layer of ensolite.
Depending on how much is left, I'll do the doors with 2 layers on outer skin, and 2 layers on inner skin also. Ensolite on inner skin only most likely, but we will see.
I'm not sure if I want to put the raammat on my ceiling yet. Rick said it would be okay, but I might step up to second skin damplifier pro for just the ceiling, since it's thicker and has higher heat tolerance. Then would add a layer of esolite over whatever I do.
Hope some of this helps.
PS - So far the only thing I've found to get about 95% of the butyl rubber off your hands is multi washes with GooGone, followed by scrubbing with GoJo hand cleaner. Brush under your nails with the googone too, as it took about 1 week for my nails to start looking cleaner. LOL I'm going to try surgical gloves this week on the rest, but it may be too sticky for them to work.
I used surgical gloves when I did mine and they work great. Beware your shoes. I was stepping on scrap pieces all day and dragging it into the house, luckily we have wood floors and it cleaned up easy.
Yeah, learned that lesson fast too. Took one fresh roll of raammat out of the plastic wrap and laid it right into the rear of my truck on the carpet. 5 minutes later noticed the sticky edges had left two black marks about 3 or 4 inches long on each end of the roll. One is on the storage bin cover, and the other is in the carpet. Neither will really come out so luckily they are under the rear seat.
I'm going to try to work on getting them out, but don't hold much hope. I quickly put cardboard down after that.
Luckily what I'm doing tomorrow/Friday will have all the interior pulled, so I should be a little safer, except the butyl will jsut be all over me instead. LOL
Not sure if the other products are this messy, but man is that stinking edge of sticky butyl a mess to deal with. Thinking of stopping at the hardware store for some metal tape jsut to cover those sticky seams with for less interior mess.
Dynamat vs. FatMat
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