dynamat install
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dynamat install
2004 civic 4dr. ok guys, don't ask but i have about 8-9 sheets of dynamat extreme just layin around and im bored today. i have a fair amount in the front doors and trunk area... and i patched the rear deck up. next question, where can i put more? im thinking taking out my back seats and putting a crapload underneath the part u sit on
if anyone knows what im talking about, honda put some of thier garbage factory tac there so i think i should just add a bunch of dynamat on top of that. i did notice that is gonna be right against my rear axle so that would help with a lot of road vibration right? but i still have so many sheets that can't be wasted lol. if anyone could give me some advice that would be great, thanks guys
if anyone knows what im talking about, honda put some of thier garbage factory tac there so i think i should just add a bunch of dynamat on top of that. i did notice that is gonna be right against my rear axle so that would help with a lot of road vibration right? but i still have so many sheets that can't be wasted lol. if anyone could give me some advice that would be great, thanks guys
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Rep Power: 0 Pull out the back seats and do the rar wheel wells. Front wheel wells are good too, if you haven't gotten there yet. Actually, it doesn't look like you have done anything on the floor. Pull the front seats and carpet and do as far up the firewall and as far back as you have material for. Helps with engine and road noise.
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From: Portland, Oregon
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Headliner- totally- only think between you and the metal roof is a thin sheet of crap board. You should also put some behind all of the pillars- its just a few wires and sheet metal between them. Ater all that, I think your car will be pretty well set. If you wanted to keep going, try under the front seats and center console. I'm also sure you know the obvious- the front doors and rear quarter panels. And if you havent hit it, the spare tire well.
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From: Temecula, CA
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From: Portland, Oregon
Rep Power: 388 ^^ yeah, I get lots of sound from my back end ever since I had my trunk floor pan replaced (my neighbor crashed into the back of my vic) weak... so much road noise. I should look into doing dynamat in my em2.
Just curious- from what i remember- that stuff is very expensive. Right? (cost?)
Some basic questions that arise to me (someone who has never dynamatted before):
How does it instal- is it backed with adhesive?
Do people usually layer the dynamat or not?
How heavy is it?
How much is needed for specific parts of the car, like say- entire trunk, or door panels? How big is a sheet?
Just curious- from what i remember- that stuff is very expensive. Right? (cost?)
Some basic questions that arise to me (someone who has never dynamatted before):
How does it instal- is it backed with adhesive?
Do people usually layer the dynamat or not?
How heavy is it?
How much is needed for specific parts of the car, like say- entire trunk, or door panels? How big is a sheet?
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From: Temecula, CA
Rep Power: 263 Retail price is a lot. You can get knock-offs on ebay but they're not all that great. I do have some of the cheap stuff mixed in with dynamat extreme on my trunk lid.
The most common types of dynamat are extreme and regular. The extreme you just peel and stick. It comes in rectangles and you either cut to shape or not depending on what you're doing. There's a roller but I use a tennis ball everywhere except the edges. The regular needs to be heated up before application.
It never hurts to layer, I do like crazy in my car. Not so much for customers usually. They usually sell as speaker kit, door kit, trunk kit, wedge pack or bulk pack.
Most sheets are a foot and a half by 30 or 32 inches or something like that.
Its sort of heavy, tough to say. When you do a bit of it it certainly adds some mass. That's what it does though I guess.
The most common types of dynamat are extreme and regular. The extreme you just peel and stick. It comes in rectangles and you either cut to shape or not depending on what you're doing. There's a roller but I use a tennis ball everywhere except the edges. The regular needs to be heated up before application.
It never hurts to layer, I do like crazy in my car. Not so much for customers usually. They usually sell as speaker kit, door kit, trunk kit, wedge pack or bulk pack.
Most sheets are a foot and a half by 30 or 32 inches or something like that.
Its sort of heavy, tough to say. When you do a bit of it it certainly adds some mass. That's what it does though I guess.
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Rep Power: 0 High quality liquids actually weigh about as much as high quality mats when applied as thickly - which you have to do to get the same benefit. Takes more time though. You'll need 3-5 coats, with drying time between. You'll also need to do a lot of masking if you spray.
The very best result is gotten by applying a layer or two of mat followed by an equal thickness of liquid. Each type is most effective over slightly different frequency ranges so the two together are killer.
As far as layering, that's application specific. There is definitely a point of diminishing returns - once a panel is dead, you don't gain much by adding more. In my experience, you are done after 1 - 4 layers, depending on the product you use and how resonant the panel is. You can basically tap on it, listen to the sound, add some mat and tap again. Once you get a thud instead of a ring, it's time to move on.
The very best result is gotten by applying a layer or two of mat followed by an equal thickness of liquid. Each type is most effective over slightly different frequency ranges so the two together are killer.
As far as layering, that's application specific. There is definitely a point of diminishing returns - once a panel is dead, you don't gain much by adding more. In my experience, you are done after 1 - 4 layers, depending on the product you use and how resonant the panel is. You can basically tap on it, listen to the sound, add some mat and tap again. Once you get a thud instead of a ring, it's time to move on.
Last edited by Rudy; Jan 22, 2007 at 09:04 AM.
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Rep Power: 0 for triz: it is very expensive... usually about $90 for 4 sheets of extreme at roughly 3 sq. ft. per sheet. i have my entire trunk covered with extreme. recently the back deck and rear seat. i still have 5 sheets. so next question is use it in the pillars. or how hard is it to put it into the headboard? it seems like a lot of work. if anyone could give me an apx. install time or some steps. thanks
i recommend going with RAAMmat. RAAMaudio - Quality and Value in Automotive Sound Deadening i bought a roll there and it was more than enough for my whole trunk (including bottom floor) and front 2 doors (coupe). i have done my share of researching on sound deadning and went with them over dynamat/second skin/etc.
from most important area to least to be deadnened *IMO*:
1) trunk lid
2) door panels (front stage)
3) trunk floor/spare tire cargo space
4) headliner/roof/pillar
5) front/rear seats cargo floor
6) exterior (wheel wells, hood, etc)
of course, some would say 1 and 2 should be switched over but its all personal preference.
heres my em2 with raammat on the entire trunk:
from most important area to least to be deadnened *IMO*:
1) trunk lid
2) door panels (front stage)
3) trunk floor/spare tire cargo space
4) headliner/roof/pillar
5) front/rear seats cargo floor
6) exterior (wheel wells, hood, etc)
of course, some would say 1 and 2 should be switched over but its all personal preference.
heres my em2 with raammat on the entire trunk:
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From: Portland, Oregon
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DIY headliner removal (removing the headliner) I could help you with the headliner out-stall, in 10 easy steps too!
Finally you non EX-sunroof people have it easy!
here is a little "DIY" to removing your headliner for whatever reason you want.
I put my headliner back in when I was back in my parking garage, pretty tight- get an open space because your going to need both doors wide open.
1) Pry out the map light covers with a screwdriver. I think I went in from the center. There are some screws or bolts that need to be taken out. Same for the dome light. Both lights need to be disconnected to get the fixtures out. Dont worry about switching up the connectors because they are different.
2) time for the visors. Get a mini flat head screwdriver and fold the mirror down, there is a plastic cover on it and it pops off to give you access to another screw or bolt to hit, same with the other side. With the "hook," turn it counter-clockwise and press your screwdriver in the knotch in the back (if I remember correctly)
3) oh **** handle. Pull it down, cover and some screws.
4) rear view mirror- take the plastic part off (pry from the front), then there is three screws.
So now you got all the crap off, oh **** handles, mirrors and hooks, and all the lights.
5) seat belt time. Get your wrench and take off those huge bolts holding the seatbelt to the top pillar, its behind a cover that can easily be pryed off. If you can figure how to get one of your pillar panels out of there on one side your life will be easier, other wise just try to yank it aside to give you some clearance.
6) take off the other panels- the 2 rear and the two front, throw them in the trunk or whatever so they arent in your way.
7) pull the rubber "weather stripping" away from the door frame and headliner.
8) If your headliner hasnt fallen down yet, there are two clips in the back holding it in, slide your fingers up the center in the back and pull down, it should fall on you and make you feel like an idiot.
9) your wires are glued on to your headliner, I used a butane lighter or heat them up enough to get them off with out tearing the headliner up.
10) Get it out your door and your good.
BTW, I did this with a sunroof-less coupe. If you have a sunroof or a sedan you may run into some slight problems like wiring for the sunroof motor or getting the headliner out your door. If your Dynamatting you may be able to get away with keeping it inside the cabin anyways- especially more so for you sedan peeps.
Good luck.
Finally you non EX-sunroof people have it easy!
here is a little "DIY" to removing your headliner for whatever reason you want.
I put my headliner back in when I was back in my parking garage, pretty tight- get an open space because your going to need both doors wide open.
1) Pry out the map light covers with a screwdriver. I think I went in from the center. There are some screws or bolts that need to be taken out. Same for the dome light. Both lights need to be disconnected to get the fixtures out. Dont worry about switching up the connectors because they are different.
2) time for the visors. Get a mini flat head screwdriver and fold the mirror down, there is a plastic cover on it and it pops off to give you access to another screw or bolt to hit, same with the other side. With the "hook," turn it counter-clockwise and press your screwdriver in the knotch in the back (if I remember correctly)
3) oh **** handle. Pull it down, cover and some screws.
4) rear view mirror- take the plastic part off (pry from the front), then there is three screws.
So now you got all the crap off, oh **** handles, mirrors and hooks, and all the lights.
5) seat belt time. Get your wrench and take off those huge bolts holding the seatbelt to the top pillar, its behind a cover that can easily be pryed off. If you can figure how to get one of your pillar panels out of there on one side your life will be easier, other wise just try to yank it aside to give you some clearance.
6) take off the other panels- the 2 rear and the two front, throw them in the trunk or whatever so they arent in your way.
7) pull the rubber "weather stripping" away from the door frame and headliner.
8) If your headliner hasnt fallen down yet, there are two clips in the back holding it in, slide your fingers up the center in the back and pull down, it should fall on you and make you feel like an idiot.
9) your wires are glued on to your headliner, I used a butane lighter or heat them up enough to get them off with out tearing the headliner up.
10) Get it out your door and your good.
BTW, I did this with a sunroof-less coupe. If you have a sunroof or a sedan you may run into some slight problems like wiring for the sunroof motor or getting the headliner out your door. If your Dynamatting you may be able to get away with keeping it inside the cabin anyways- especially more so for you sedan peeps.
Good luck.
I wil fix vBPlaza today
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Joined: Apr 2004
Posts: 3,473
Likes: 1
From: Nashville, Tennessee
Rep Power: 304 I could help you with the headliner out-stall, in 10 easy steps too!
Finally you non EX-sunroof people have it easy!
here is a little "DIY" to removing your headliner for whatever reason you want.
I put my headliner back in when I was back in my parking garage, pretty tight- get an open space because your going to need both doors wide open.
1) Pry out the map light covers with a screwdriver. I think I went in from the center. There are some screws or bolts that need to be taken out. Same for the dome light. Both lights need to be disconnected to get the fixtures out. Dont worry about switching up the connectors because they are different.
2) time for the visors. Get a mini flat head screwdriver and fold the mirror down, there is a plastic cover on it and it pops off to give you access to another screw or bolt to hit, same with the other side. With the "hook," turn it counter-clockwise and press your screwdriver in the knotch in the back (if I remember correctly)
3) oh **** handle. Pull it down, cover and some screws.
4) rear view mirror- take the plastic part off (pry from the front), then there is three screws.
So now you got all the crap off, oh **** handles, mirrors and hooks, and all the lights.
5) seat belt time. Get your wrench and take off those huge bolts holding the seatbelt to the top pillar, its behind a cover that can easily be pryed off. If you can figure how to get one of your pillar panels out of there on one side your life will be easier, other wise just try to yank it aside to give you some clearance.
6) take off the other panels- the 2 rear and the two front, throw them in the trunk or whatever so they arent in your way.
7) pull the rubber "weather stripping" away from the door frame and headliner.
8) If your headliner hasnt fallen down yet, there are two clips in the back holding it in, slide your fingers up the center in the back and pull down, it should fall on you and make you feel like an idiot.
9) your wires are glued on to your headliner, I used a butane lighter or heat them up enough to get them off with out tearing the headliner up.
10) Get it out your door and your good.
BTW, I did this with a sunroof-less coupe. If you have a sunroof or a sedan you may run into some slight problems like wiring for the sunroof motor or getting the headliner out your door. If your Dynamatting you may be able to get away with keeping it inside the cabin anyways- especially more so for you sedan peeps.
Good luck.
Finally you non EX-sunroof people have it easy!
here is a little "DIY" to removing your headliner for whatever reason you want.
I put my headliner back in when I was back in my parking garage, pretty tight- get an open space because your going to need both doors wide open.
1) Pry out the map light covers with a screwdriver. I think I went in from the center. There are some screws or bolts that need to be taken out. Same for the dome light. Both lights need to be disconnected to get the fixtures out. Dont worry about switching up the connectors because they are different.
2) time for the visors. Get a mini flat head screwdriver and fold the mirror down, there is a plastic cover on it and it pops off to give you access to another screw or bolt to hit, same with the other side. With the "hook," turn it counter-clockwise and press your screwdriver in the knotch in the back (if I remember correctly)
3) oh **** handle. Pull it down, cover and some screws.
4) rear view mirror- take the plastic part off (pry from the front), then there is three screws.
So now you got all the crap off, oh **** handles, mirrors and hooks, and all the lights.
5) seat belt time. Get your wrench and take off those huge bolts holding the seatbelt to the top pillar, its behind a cover that can easily be pryed off. If you can figure how to get one of your pillar panels out of there on one side your life will be easier, other wise just try to yank it aside to give you some clearance.
6) take off the other panels- the 2 rear and the two front, throw them in the trunk or whatever so they arent in your way.
7) pull the rubber "weather stripping" away from the door frame and headliner.
8) If your headliner hasnt fallen down yet, there are two clips in the back holding it in, slide your fingers up the center in the back and pull down, it should fall on you and make you feel like an idiot.
9) your wires are glued on to your headliner, I used a butane lighter or heat them up enough to get them off with out tearing the headliner up.
10) Get it out your door and your good.
BTW, I did this with a sunroof-less coupe. If you have a sunroof or a sedan you may run into some slight problems like wiring for the sunroof motor or getting the headliner out your door. If your Dynamatting you may be able to get away with keeping it inside the cabin anyways- especially more so for you sedan peeps.
Good luck.
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