Dynamat 10455 Self Adhesive Deadener Xtreme
When I spotted this for less than I can pick up competing deadeners I jumped on 2 boxes to do my 09 accord rattle trap. I went front to back in key areas with dynamat. There's no reason to full cover with a deadener, just find resonant spots and fix them. I also installed a solid layer of ensolite from the top of the firewall(oh how I hated removing the dash) all the way back, in the doors, and behind the headliner. A marked difference in outside noise, and the inside noise is oh so sweet.
I've been using dynamat products for the past 20 years. I've tried several times to be cheap and use alternatives, such as second skin, raaamat, and brown bread, but always seem to find myself back to dynamat. The modern butyl deadener isn't quite as effect as the old brownish asphalt stuff, but unlike the asphalt there is no stench, it tolerates heat very well, it weighs less, and it is FAR easier to install.
BalasHapusI decided to go with Dynamat to reduce road noise in my Jeep Liberty as the all-terrain tires were unbearably loud at highway speeds after a few hours. Amazon had the best prices on the bulk packs by far so I bought two to cover all four doors and the floor of my Jeep Liberty. I ended up with two sheets (3 sq ft) left over which should be enough to cover the rear gate when I have an afternoon to kill.
BalasHapusThe metal backing is incredibly sharp and it conducts electricity, so a co-worker warned me to take great care to ensure that the wires do not come into contact with any of the edges. It's no easier on your finger tips either! I found out the hard way that you should not cover any contact points between the trim panels and doors if you want the panels to fit as snugly as they did before the installation. With the great care and lessons learned, all four doors took approximately 20 hours to install and the floor took close to 30 more. I'm certain an experienced installer could have done the job in half the time.
The results of just the doors were impressive enough, but covering the floorboards made a tremendous difference. At 75 mph, I now listen to the radio at 18 instead of 30, which is an approximate 40% reduction in cabin noise. More impressively is the sudden emergence of midrange and punch from the base that makes me wonder if somebody stuck a subwoofer in my console. With no adjustments to treble or bass, the premium Infinity speakers now sound almost worth what the dealer charges!
Despite the high cost in initial expense, weekend sweat, and finger tip slashing, Dynamat has lived up to the hype. Hearing is believing!
This has a lot of uses beyond car applications. I used a sheet of it on the drywall behind in-wall speakers to cut the amount of sound radiating through the back wall and tighten the sound. I used a sheet of it inside a computer case, to eliminate a tinny rattle that came from the case vibration while it was on. You can even put pieces of it on the inside of washing machine or dryer panels to make them quieter.
BalasHapusIt does have one drawback, and that's the fact that once you stick it on something, you will not be able to get it off without making a big mess. It is essentially tar with a foil outer cover, and trying to get it off just leaves a bunch of sticky tar behind. So, choose the place you want it carefully before sticking it down!
I agree with the others; anyone who doesn't like this product must have installed it wrong.
BalasHapusI have a 2000 Honda CR-V SE. I lined the underside of the hood, the entire roof, all four doors (inside the doors and the surface), much of the floor, the spare tire well, the rear quarters (inside, behind the rear speakers) and lots of the tailgate with two (2x) Bulk Packs (9 sheets each.) I had not planned to line the roof, but after gutting the seats, all trim panels, and all the carpeting it seemed worthwhile. I cannot explain how differently the vehicle sounds now. EVERYONE compliments it (including my wife, who could not understand why I was spending the time and money on the project in the first place, but now wants me to Dynamat her Solara!) The doors go "kfump". Knocking on the hood, roof, or doors sounds like hitting a solid wood desk. There are NO vibrations or rattles in the car whatsoever (I also got some cheap self-adhesive felt sheets from a hobby store and lined the ashtray, glove box, and little change compartments. Now it's like driving around with ear muffs on. There is still some road noise, because I have pretty knobby tires, but the incredible thing is that I can no longer hear my exhaust from the rear of the car, and sometimes I'll look sideways and notice an 18 wheeler beside me that I did not even hear. When I pass vehicles going the opposite direction I am used to the "whee-owwww" as they go by, but now it is a "whiff", or just silent.
Lining the roof made a huge difference when driving in the rain, but since the windshield is so noisy in a downpour the cabin is still pretty loud, but there is no "ratta-tat-tat" from the metal anymore at all.
I bought a heat gun and the rubber Dynamat roller specifically for this project (though I'm sure I'll get plenty more use out of the heat gun). I agree with many of the other reviewers that if you do not press this stuff down in FIRM contact with your vehicle that you will not get the best results. I've done MUCH (much, much, much, much...) research on this and the bottom line is that this product is so effective because of "vibration damping", NOT sound blocking. If you hold a sheet up in midair between you and a speaker it will have no effect. If you glue it to the speaker you will virtually stop the sound.
I can also go on about how AMAZINGLY different that my stereo sounds, but I think everyone else covered that. Yes; more mid-bass. Yes; you will hear things in your music that you never heard before. Something that surprised me though was how much quieter your music is OUTSIDE your car. I am not a loud person, and I always turn the volume down at stop lights, and in residential neighborhoods, but one time I stepped out of my car and left the stereo on at a pretty comfortable level. When I closed the door I could not hear it at all. Nothing. Nada. That was a nice bonus.
This stuff is incredible when installed right. Amazon had the best prices in all my searches. You will ache, you will probably bleed, but a weekend or two of hard work should reward you for years. Enjoy!
When I spotted this for less than I can pick up competing deadeners I jumped on 2 boxes to do my 09 accord rattle trap. I went front to back in key areas with dynamat. There's no reason to full cover with a deadener, just find resonant spots and fix them. I also installed a solid layer of ensolite from the top of the firewall(oh how I hated removing the dash) all the way back, in the doors, and behind the headliner. A marked difference in outside noise, and the inside noise is oh so sweet.
BalasHapusI've been using dynamat products for the past 20 years. I've tried several times to be cheap and use alternatives, such as second skin, raaamat, and brown bread, but always seem to find myself back to dynamat. The modern butyl deadener isn't quite as effect as the old brownish asphalt stuff, but unlike the asphalt there is no stench, it tolerates heat very well, it weighs less, and it is FAR easier to install.
I own a 2001 Nissan Xterra. These vehicles are very noisy. So, I decided to do a little investigating on the matter and came across Dynamat and am I ever glad I did! I purchased 2 boxes because I wanted to make sure I had enough.
BalasHapusDay 1 - I started with the front doors ... then moved to the passenger doors ... next moved to the rear panels. I still had a lot of sheets left and decided to cover the entire cargo area. It did take me all day (started at about 9 am and finished around 8:30 pm). Once I finished ... I got in the car and took a drive. I immediately could tell a huge difference! Since I had another full box ... I decided to do the floor.
Day 2 - This was another all day job, but near as long as Day 1. The hardest thing for me was getting the bolts removed from the seats. I didn't cover the entire floor ... however, I would say 95% of the floor is covered. I put everything back in it's place and took another test drive (both test drives included the highway). All I can say is WOW! I'm absolutely blown away by this product! I don't have to turn the volume up on my radio to hear it! The stereo sounds 10 times better (which I just installed a new JVC head unit with new Alpine speakers). And I still have 4 sheets left! It's like the never ending product!
If anyone doesn't get results from this stuff ... then they just aren't installing it correctly. You're going to always have some road noise (you need to so you can hear emergency vehicles). But this stuff probably cut about 70% of my road noise. I can't wait to have people in the rear seat so we can actually carry on a conversation!
I recommend the Dynamat roller ... or one equivalent to it. I bought a small one at the hardware store that is used for wallpaper. It was a little too small and was made out of wood.
It does have sharp edges ... but if you take your time and keep this in mind, then you won't have any issues. I have 2 small, paper cut like cuts and that's it. It is also heavy ... so keep in mind you're adding some extra pounds to the car ... The label on the UPS box say one box weighs around 23lbs.
Now I'm trying to decide if I want to take the remaining 4 sheets and do the roof ...
First, I'd like to address Mr. Brady's 1-star review.
BalasHapusRoad noise comes through the floor more than the doors! If you plan to leave negative feedback on products, please check that you application is correctly carried out. For road noise, line you floor first. For car audio, line the trunk and doors first. Then once your primary application is finished, move on to a more comprehensive application, i.e. "Dynamating" the remainder of the surfaces.
Second, Dynamat is an industry leader in noise dampening. It does not eliminate noise. With the proper application in mind it will, however, significantly reduce rattles and noise. This is especially true when the application involves eliminating rattles produced by the body once speakers that move more air than the original factory system are installed. Road noise dampening is another application that the product is well suited for. Please dampen the structures through which the noise primarily flows first - the floor.
Both applications dampen the noises perceived by the ear; the difference between the two is a matter of noise generation location. This is to say a car audio application attempts to deaden noise generated within the vehicle so apply the product in those areas with rattles, but the road noise is generated outside and mostly underneath the vehicle so apply the product to the floor and then to the doors is you have enough at the time. A comprehensive application would involve "Dynamating" the floor, doors, entire truck area, and any other noticed points of trouble depending on the vehicle type and age. Remember, nothing will make a VW Thing as quiet as a Cadillac CTS, but Dynamat will get it as quiet as possible for a reasonable price.