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DIY sound deadening ideas?

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I've heard of people using a Bostik product you can get/order from carters etc. Haven't tried it myself, just recall reading about it being an ok alternative to the expensive options. Comes in sheets.

 

http://www.bostik.com.au/_upload/ressources//bostik_new/bostik/tds/bostik_bostik8104_self_adhesive_sfsd_150713.pdf

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I think you can get the deadening stuff they use on A/C units for quite cheap, but as it's designed for big flat surfaces it's a bit of a prick to work with

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Yeah have a chat with Yowzer as I'm sure they sell proper stuff at jaycar and he's ace at sweet prices

I don't work there no more

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Rat mat, from restoration auto tools is pretty much dynamat but less than half the price. You can buy it online from their website.

I think I've seen that on Trademe too

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I used some stuff from Froman Insulation only cost $130 for the whole car sticky backed easy to install and cost effective and does the job well.

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I used some of this stuff on my speaker project, likely a bit pricey for a car-interior quietening project due to the area, and won't kill the panel resonance, but very good for absorbing noise. Unfortunately I want to buy some more of it here in Auckland, and haven't found it yet, any ideas? Pics:

 

http://stuff.fredcooke.com/BarcelonaSpeakerProject/IMG_7298.JPG
http://stuff.fredcooke.com/BarcelonaSpeakerProject/IMG_7445.JPG
http://stuff.fredcooke.com/BarcelonaSpeakerProject/IMG_7454.JPG
http://stuff.fredcooke.com/BarcelonaSpeakerProject/IMG_7446.JPG
http://stuff.fredcooke.com/BarcelonaSpeakerProject/IMG_7469.JPG

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