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  1. #1
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    Default soud deadening/isolation

    Hey chaps
    looking for a project to do and thought a bit of sound deadening in my cruiser is a good idea and hopefully strait forward any recommendations for that self adhesive material that they use

    thanks rory
    Last edited by vidalbum; 2021/05/10 at 11:06 AM. Reason: spelling

  2. #2
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    Default Re: soud deadening/isolation

    I see the sound guys puts dynamat in their sound installs for acoustic reasons

    https://dynamatsa.co.za/products/
    Willem

    Ford Ranger 3.0Tdci Super Cab 4x4
    (workshop whore)


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  4. #3
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    Default Re: soud deadening/isolation

    thanks thats the stuff

  5. #4
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    Default Re: soud deadening/isolation

    man i see it is pricey stuff

  6. #5
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    Default Re: soud deadening/isolation

    You may laugh. I wanted to add some padding in a vehicle just this last week....so I cut up a yoga mat. pumped it full of silicone and stuck it to the doors outer skin....

    If anybody asks I'll deny I had a yoga mat...
    2009 Corsa Utility 1.7Dti (Business bakkie)
    2011 Honda CRV 2.4
    2007 Hyundai Atos (Tossie)

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  8. #6
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    Default Re: soud deadening/isolation

    I used sondor foam when i covered my R6 Landy to an LD28 nissan. I m not convinced that it actually made much difference as I still needed to drive that vehicle with ear plugs, but I felt like it was doing something.

  9. #7
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    Default Re: soud deadening/isolation

    This might still be available ?
    Did the Atos bonnet, floor and boot under spare wheel. Made a huge difference !Name:  Screenshot_20210510-115434.jpg
Views: 674
Size:  36.1 KB
    There is no task too simple for some people to complicate !



    Ford Figo 2016

  10. #8
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    Default Re: soud deadening/isolation

    Yes, the correct stuff is tar based.
    It works great, but I am always worried about fire, as once tar starts burning, nothing will stop it.
    But all the professionals use it, so why worry?


    2007 Nissan Navara 4L Auto - Worshond


  11. #9
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    Default Re: soud deadening/isolation

    Quote Originally Posted by duncang View Post
    This might still be available ?
    Did the Atos bonnet, floor and boot under spare wheel. Made a huge difference
    At what kind of price for the small car?
    2009 Corsa Utility 1.7Dti (Business bakkie)
    2011 Honda CRV 2.4
    2007 Hyundai Atos (Tossie)

  12. #10
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    Default Re: soud deadening/isolation

    Last edited by Sias; 2021/05/10 at 12:16 PM.

  13. #11
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    Default Re: soud deadening/isolation

    Quote Originally Posted by WAJ View Post
    I see the sound guys puts dynamat in their sound installs for acoustic reasons

    https://dynamatsa.co.za/products/
    That's what they did mine with, I think it was about R700 a door.
    FJC - Just Cruising

  14. #12
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    Default Re: soud deadening/isolation

    Quote Originally Posted by Nitebob View Post
    At what kind of price for the small car?

    Sadly 10 years ago, buy knowing me it was dirt cheap.....
    There is no task too simple for some people to complicate !



    Ford Figo 2016

  15. #13
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    Default Re: soud deadening/isolation


  16. #14
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    Default Re: soud deadening/isolation

    https://www.silentcoat.co.uk/

    Available locally and not tar based

  17. #15
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    Default Re: soud deadening/isolation

    There are a few "tar based" types around.
    Some come sliding off the panel with the vehicle out in the sun, let alone at operating temperatures, others don't.

    Be careful what you buy.
    Cheers,
    John Kilfoil

    Rover P6
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  18. #16
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    Default Re: soud deadening/isolation

    Dynamat is quite expensive when i did my lancer..I found a similar product at a sound place that was about 40% cheaper and worked really well..So shop around and do some homework because as mentioned there are also some dodgy stuff out there

  19. #17
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    Default Re: soud deadening/isolation

    What worked quite well in my K25 and even inside the Jetta doors was this:

    https://www.builders.co.za/Paint-%26...iABEgIv2PD_BwE

    even back in the 90's dynamat was way too expensive for me.

    In fact I even wrapped the caravan's water tanks in it a few months ago.
    Wynand
    2005 Discovery 3 HSE v8
    2002 Discovery II XS v8 (sold)
    1974 Chev K 25 (julle dink 'n v8 is dors)
    Land Rover - making mechanics from motorists since 1947 and electronic engineers since 1989!

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  21. #18
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    Default Re: soud deadening/isolation

    Dynamat. You get what you pay for. The rest is.......dodgy.

    Used it. Experienced it and even my son then only 4 years old picked up the difference it made to the car. People thought my Opel Eatate had better build quality than Mercs, Beemer and other premium cars of that era.
    HENK


  22. #19
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    Default Re: soud deadening/isolation

    There is a lot more science to this than many make out.
    In any case how far down the hole you want to go is up to you.

    There are many BUTYL based sound dampening materials available. CTK, STP, And Anti Vibe (VIBE) are a few good ones that wont break the bank. These are proper products that dont run or melt in extreme heat. I have the Anti Vibe on my Chev trailblazer doors. These add mass and stop panels resonating. And they do work!!! I was a skeptic but got some stuff for mahala and have changed my attitude completely.

    30% coverage is actually sufficient as its been tested that more than that is diminisung returns.
    I cut mine into smaller more manageable squares and stuck it and rolled it properly.
    Corners, bends and folds add stiffness and stop resonance. COVER LARGE FLAT SURFACES FOR BEST RESULTS. Don't waste the stuff.

    Also look at adding some to your door cards. I did and certainly stops the vibrations from an aftermarket midbass speaker in the door.

    If you want an extra step you need to decouple (seperate) the door from the door card. Use a closed cell Foam (Silent Coat has a good product) and lay this over the door card to stop vibration going from the door into the door card. Helps isolate the noise in the door.

    Also the big holes in the doors themselves. You can look at sealing those up as well.
    Redback Custom Garage on Facebook has done some custom fiberglass panels to seal these. Really good work.

    The primary objectives are to reduce vibration and stop transmission of vibration/sound waves from entering the cabin. EXCEPT for that generated by the speakers.

    Sound Quality Car Audio is my hobby.
    Also PAYNTWAGON CAR AUDIO has done a good install with sound treatment in a cruiser. Give Kevin a Call. He has his own brand of audio gear as well.
    Chev Trailblazer 2.5 (4x2...Don't tell Hunter 26. I'll Never Live it down)
    Hyundai ix35 2.0 crdi 4wd (Sold)
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  24. #20
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    Default Re: soud deadening/isolation

    You really have to believe you have a problem to pad out the whole internal of the Cruiser. Its expensive and its heavy. Concentrate on the larger flat panels and make sure you do not put stuff inside the doors that absorbs water. You will get a rust hole through the panel very soon.

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