| [ Total Views: 4738 | Total Replies: 26 | Thread Id: 95871 ] |
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 lenny1870
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| posted on March 16th, 2012 at 09:47 PM |
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Sound Deadening???
Does anyone know any real cheap but really effective sound deadening techniques.. Ive tried flashtac and weatherproofing tape.. Was thinking about
applying 1cm thick foam on the back of all my door cards/panels on my bug...?? thanks.
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 barls
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| posted on March 16th, 2012 at 09:51 PM |
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cheap, reliable and performance.
you cant have all three.
personally ive got dynomat in my bug and it works well.
lee will chime in and say that its too heavy and he uses camping mat in him.
there are alternatives but none are really cheap.
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lenny1870
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| posted on March 16th, 2012 at 10:02 PM |
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yes dynamat looks pretty reliable.. I researched the edead products and dynamat also but i dont have as much coin as id like ..any cheaper
alternatives would be helpful though. Ive used weatherproofing tape over the main area of my rear interior although im not sure it is really working..
Then again i havent really got my bug on the road anyway.. he has been out of rego since may 2010 so i have only a couple of things to get fixed until
he's back on the road. My opinion is based on the small sneaky driving up the street and back and in our front yard.
Because there is no other car like a Dub |
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barls
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| posted on March 16th, 2012 at 10:08 PM |
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have a read here
http://forums.aussieveedubbers.com/viewtopic.php?tid=86816&page=2#pid871598
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TorxKiwi
A.k.a.: Dean Newell
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| posted on March 17th, 2012 at 06:51 AM |
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I used a double layer of weather proofing tape/flashtac in the back of my bug. Seems to have done the job pretty well. I was initially unsure but once
seat carpet etc. are all installed it made a huge difference.
"Ownership of a Beetle is not a destination it is a journey." |
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68AutoBug
A.k.a.: Lee Noonan
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 posted on March 17th, 2012 at 12:11 PM |
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I used the Gym Yoga Mats made from PVE foam...
waterproof... weighs nothing... and cheap... $5-99 a mat
plus contact cement... from Go Lo.. etc..
I used two layers on the roof...
under the carpet.. around the engine bay...
above the gearbox etc... in the doors.. etc..
cheers
LEE
- [size=4]Helping keep Air Cooled VWs on the road - location: SCONE in the Upper Hunter Valley - Northern NSW 320 kms NNW of SYDNEY--- [/size]
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68AutoBug
A.k.a.: Lee Noonan
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| posted on March 17th, 2012 at 12:13 PM |
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My Son is doing His split Kombi with dynamat
its very heavy... adds some weight to Your car..
its like carrying 3 or 4 tool boxes... and I only carry one... lol
LEE
- [size=4]Helping keep Air Cooled VWs on the road - location: SCONE in the Upper Hunter Valley - Northern NSW 320 kms NNW of SYDNEY--- [/size]
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lenny1870
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| posted on March 17th, 2012 at 07:11 PM |
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when i got home today i had some leftover foam from the front seats that i padded and though that mabye i could use that for a bit of sound deadening.
Rather than shove it in against panels in the rearsides i used it to fill the space in the back seat - The part of the seat you can fold down. Im
hoping that this will act as almost a subtle barrier from the noise (mabye?? i doubt) although i thought mabye utilizing some foam i hadnt used may be
a good idea. Tomorrow im off to bunnings to purchase an mdf sheet to cut a backing for the seat. This will provide a suitable surface for when i pull
the back seat down flat. Im also going to price some of insulation materials.. (garage doors? - thanks for the link barls) and also wil probably give
the gym mats a go!!! thanks Lee - great idea!! thanks everyone for the response
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waltermitty
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| posted on March 17th, 2012 at 11:17 PM |
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BARGIN!
http://www.ebay.com.au/itm/PELTOR-WORKTUNES-Digital-AM-FM-MP3-Radio-HEADPHONE...
Mitchell
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narumi
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| posted on March 21st, 2012 at 12:23 AM |
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Lee, I tried yoga mat on one of my door.
it doesn't work as well as my other standard 40 years old deadening.
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68AutoBug
A.k.a.: Lee Noonan
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| posted on March 21st, 2012 at 12:50 AM |
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| Quote: | Originally
posted by narumi
Lee, I tried yoga mat on one of my door.
it doesn't work as well as my other standard 40 years old deadening.
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Ok on that...
but two layers all over the car does make a difference...
without weight...
I did My whole door with two layers glued all over and I used silastic all around it..
My doors used to make a hollow noise when I shut them until I did this...
the VW door deadning is only in a very small area ..
I'm not saying its the best.. also keeps the car cool in the summer and warm in the winter with the heater...
the stuff I saw on here from bunnings for garage doors sounded good... foam with silver paper,, and sticky...
I bought a piece of good stuff from JAYCAR... glad they only had the twobits.. I put them under the back seat,,
not that big but VERY heavy.. and sound proof..
I also used expanding foam it also weighs nothing
cheers
LEE
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- [size=4]Helping keep Air Cooled VWs on the road - location: SCONE in the Upper Hunter Valley - Northern NSW 320 kms NNW of SYDNEY--- [/size]
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bajachris88
A.k.a.: Chris Leete
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| posted on March 21st, 2012 at 08:32 AM |
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| Quote: | Originally
posted by TorxKiwi
I used a double layer of weather proofing tape/flashtac in the back of my bug. Seems to have done the job pretty well. I was initially unsure but once
seat carpet etc. are all installed it made a huge difference.
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Dynamat is Butyl rubber matting....
But so its flash tac! thus, flashtac from bunnings will do the same job. Flashtac replaced lead sheeting in the building industry.
I will be honest though, some cheaper butyl rubber mats have an ability to slowly 'ooze'/bleed. Makes a hell of a mess. Mind you, if its good enough
to last a lifetime on a building, i'm sure it will be fine  .
Remember though, dynamat or any butyl rubber matting is not a sound deadener, its a resonance damper. Sound will still travel through like anything,
but it just won't 'drum' the panel, so to speak.
None the less it is well worth your effort, see this before and after on my bug (using a cheaper butyl matting alternative to dynamat)
BEFORE: http://www.youtube.com/watch?v=JWqizONgAjc
AFTER: http://www.youtube.com/watch?v=zODHpWuXYro&feature=related
(ô_!_/ô) (ô_!_/ô)
69' baja: kombi box, thing spindles, irs, disc front, type 3 rear drums, 2 inch lift kit, 31x10 rears. 
New engine in process: 94mm p&bs, 74mm C/w chomol Crank, 35.5x39 SP heads, turbo. Wierd combo, hopeful torque monsta! |
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Smiley
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| posted on March 21st, 2012 at 04:42 PM |
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| Quote: | Originally
posted by 68AutoBug
I also used expanding foam it also weighs nothing
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This is about the worst thing you can use as it will cause rust.
Smiley
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lenny1870
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| posted on October 6th, 2012 at 10:43 PM |
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response took a while
Hey guys thanks for the advice... My interior is just about done and im going to try and get some cool pictures tomorrow if its not raining to post on
my progress... In my doors and also behind the back quarter panels and the back seat rest i have used like a heat insulator or roof insulator that was
advertised as sound proofing, no itchy, fire resistant and heat insulator and looks like wool  it only cost me $20 for a massive roll of it and managed to to my car and dads kombi with still more to spare... Does a
great job when tightly packed in and made a big difference like bajachris88' demo. My body now sounds pretty solid and im convinced that it worked...
ill also post a picture of the stuff i got
Because there is no other car like a Dub |
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lenny1870
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| posted on October 6th, 2012 at 10:48 PM |
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im pretty sure this is the stuff
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Because there is no other car like a Dub |
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68AutoBug
A.k.a.: Lee Noonan
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| posted on October 6th, 2012 at 10:57 PM |
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| Quote: | Originally
posted by Smiley
| Quote: | Originally
posted by 68AutoBug
I also used expanding foam it also weighs nothing
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This is about the worst thing you can use as it will cause rust.
Smiley
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I had already used 4 litres of fish oil plus spray cans so nothing will rust in My car
it was coated and coated etc for a few years..lol
I'm told that Audis and other expensive cars are full of it for sound proofing.
it doesn't attract moisture like the old stuff.. anyway,,
lenny 1870
Did You put the sound proofing over the roof??
I put 3 layers of Yoga mats on My roof [with contact cement]
and on a very hot day with My car closed up it doesn;t get hot inside so the roof must be a major heat producer in cars..??
what was the name of the stuff You bought??
sounds great
was it heavy?? does it weigh a lot??
LEE
- [size=4]Helping keep Air Cooled VWs on the road - location: SCONE in the Upper Hunter Valley - Northern NSW 320 kms NNW of SYDNEY--- [/size]
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lenny1870
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| posted on October 7th, 2012 at 01:44 AM |
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http://www.sounddeadenershowdown.com/cgi-bin/index.cgi
^Some very interesting information i must say^
LEE I also sprayed my whole floor pan with fish oil...hope it works in the long run haha...
I didnt put the stuff on the roof because its sort of like fluffy i guess or wooly haha so i thought it might be tricky and to be honest i didnt
think of it.... now that you mentioned it thats probably a really smart idea putting something on the roof... we do have some yoga mats laying around
It is light but like i said..it has better results once its sort of packed in ...and dont let it get wet like id did...so if you put it in the doors
make sure no water is getting down there.....
I also used, i think it was Construction film in my doors and it only cost me about $10 for the roll at bunnings and you get about 10m of it... from
memory... Great for renewing the plastic lining in the doors and plus its easy to cut, tough so it wont rip easily and its clear so you can see whats
happening inside your doors without pulling it off...
Because there is no other car like a Dub |
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smithy68
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| posted on October 7th, 2012 at 03:05 PM |
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I don't get why people are so concerned about sound deadening, if you want a dead quiet car by a new car 
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Smiley
A.k.a.: Daniel Stephens
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| posted on October 7th, 2012 at 03:12 PM |
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| Quote: | Originally
posted by 68AutoBug
I'm told that Audis and other expensive cars are full of it for sound proofing.
it doesn't attract moisture like the old stuff.. anyway,,
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Of course it doesn't attract water, it repels it into your bodywork creating rust.
You will also find that all new cars are galvanised and constructed with methods that help prevent rust. Whereas the humble Beetle has no such
technology involved in its construction.
Yes, I'm aware that the bodies and floorpans were dip painted at the time and VW was actually ahead of the game. But that was the 1960s, it really is
a little old hat compared to modern cars, you're comparing apples to oranges.
I suppose your semi-auto won't rust anyway cause you barely drive it.
Smiley
If you said I was a Volkswagen man, you'd be right.
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barls
A.k.a.: Mr indestructible
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| posted on October 7th, 2012 at 03:42 PM |
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lees auto wont rust that much as its in scone ie well away from the coast.
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68AutoBug
A.k.a.: Lee Noonan
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| posted on October 7th, 2012 at 04:23 PM |
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| Quote: | Originally
posted by lenny1870
http://www.sounddeadenershowdown.com/cgi-bin/index.cgi
^Some very interesting information i must say^
LEE I also sprayed my whole floor pan with fish oil...hope it works in the long run haha...
I didnt put the stuff on the roof because its sort of like fluffy i guess or wooly haha so i thought it might be tricky and to be honest i didnt
think of it.... now that you mentioned it thats probably a really smart idea putting something on the roof... we do have some yoga mats laying around
It is light but like i said..it has better results once its sort of packed in ...and dont let it get wet like id did...so if you put it in the doors
make sure no water is getting down there.....
I also used, i think it was Construction film in my doors and it only cost me about $10 for the roll at bunnings and you get about 10m of it... from
memory... Great for renewing the plastic lining in the doors and plus its easy to cut, tough so it wont rip easily and its clear so you can see whats
happening inside your doors without pulling it off...
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thanks for that info.
am always looking for good film to use under the doors.
many years ago I had a mitsubishi Galant, it was very rusted when I got it, but fish oiled it.. was very smelly back then too.
anyway a few years later I sold it, and 12 years later the owner rang Me to find out what axles it had under it [as I had changed the front end and
rear axle from a later model.
He wanted to renew wheel bearings.. and they didn't fit]
so, the fish oil was working well.. lol after 12 years..
also as noted, Rust isn;t a major problem in Scone..
a very long way from any salt water..
LEE
- [size=4]Helping keep Air Cooled VWs on the road - location: SCONE in the Upper Hunter Valley - Northern NSW 320 kms NNW of SYDNEY--- [/size]
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HappyDaze
A.k.a.: Greg Mackie
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| posted on October 7th, 2012 at 04:29 PM |
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| Quote: | Originally
posted by smithy68
I don't get why people are so concerned about sound deadening, if you want a dead quiet car by a new car
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Exactly! Just enjoy the sound,
I'd rather wear a Beetle out by racing it than by polishing it!
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lenny1870
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| posted on October 7th, 2012 at 08:28 PM |
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door plastic
does a great job for door plastic and there is plenty of it!!
Because there is no other car like a Dub |
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tinman
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| posted on October 10th, 2012 at 06:24 PM |
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| Quote: | Originally
posted by bajachris88
| Quote: | Originally
posted by TorxKiwi
I used a double layer of weather proofing tape/flashtac in the back of my bug. Seems to have done the job pretty well. I was initially unsure but once
seat carpet etc. are all installed it made a huge difference.
|
Dynamat is Butyl rubber matting....
But so its flash tac! thus, flashtac from bunnings will do the same job. Flashtac replaced lead sheeting in the building industry.
I will be honest though, some cheaper butyl rubber mats have an ability to slowly 'ooze'/bleed. Makes a hell of a mess. Mind you, if its good enough
to last a lifetime on a building, i'm sure it will be fine .
Remember though, dynamat or any butyl rubber matting is not a sound deadener, its a resonance damper. Sound will still travel through like anything,
but it just won't 'drum' the panel, so to speak.
None the less it is well worth your effort, see this before and after on my bug (using a cheaper butyl matting alternative to dynamat)
BEFORE: http://www.youtube.com/watch?v=JWqizONgAjc
AFTER: http://www.youtube.com/watch?v=zODHpWuXYro&feature=related
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great videos, thanks for sharing.
How many layers did you put on the roof?
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sander288
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| posted on October 10th, 2012 at 06:48 PM |
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I have a cheap and lightweight solution; a couple of pillows and a couple of blankets; muffles the sound enough for it to not be ringing!
Best sound deadener I had was when I used to use the bug as a daily and car-pool to high school; 4 school bags packed with books is a great way of
quieting the engine noise!
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t_tuffnut
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| posted on October 26th, 2012 at 07:02 PM |
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I used flashtac in all the doors, the roof, behind the rear seats and on the floor and it did deaden some of the sound as Chris did in his videos.
That was about two years ago, and it has started to come off in a few sections as I think the heat has effected it a bit. I also put down rubber mats
under the carpets and some thick carpet behind the back seat.
I have been warned off putting the tar boards back in the engine bay as they burn like bastards when they catch alight apparently. I don't think the
chrome firewall kits would be that effective either - although someone suggested I could dynamat behind it and then install it.
The extractors make all of this effort futile though - as I recently used a decibel reader in the car and it read 88dB at idle and about 97 and half
throttle. God knows how loud it is behind the car. For long drives I now take ear plugs, because a cochlear implant would be more expensive in the
long run.
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baghall
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| posted on October 29th, 2012 at 09:34 PM |
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When I first got my baja it had yoga matt type material on the fire wall. I found it was way too noisy and well I pulled it off I did not find a huge
difference in noise levels. Whe I put in a dynomat style of soundproofing it was noticably quieter.
68 Baja - It's a growing pain!
58 Baja ute - and the pain spreads!
85 T3 Kombi - still growing
89 T3 Kombi - parts car
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