Sound deadening

Keefe wrote: These'll do for me.

:laugh:

Do you also have one of these installed Keefe?

:laugh:

Definitely some good advice, thanks all. Its encouraging to see others have done it with good success.

Funnily enough, Yes!



K

Keefe wrote: Funnily enough, Yes!

K

thats flash and you've converted the jimny to left hand drive as well - bit nicer than the standard dash

Does it play MP3s ?

No but my headset has bluetooth.
Play all the music on my phone, make calls, all without having to go 'hands off'. :woohoo:

I am planning to sound proof my Jimny by installing sound insulating / deadening and absorbing materials.

I have a few questions at the moment.


When I removed the carpet from the cabin floor, I noticed three things:

1.
Most of the front floor surface (from below the dash board to the step in front of the rear seats) is factory coated with bare bituminous material. I do not know if earlier Jimnys have this much bitumenous sound deadening coating on the floor. Mine was made in 2012 for the German market.

2.
About 66% of the carpet surface is covered from below with 15 mm thick "cotton-like scrap" material. It appears that everyone names it differently. Some of the names: felt, fleece, cotton dew ...

3.
A significant part of this "felt" material was slightly wet upon touch, and that correlates with significant rust blisters in the floor wherever some seam or panel joint is (although the vehicle is only 7 years old and has never left tarmac).
A contributing factor to this wetness of the material is probably that the vehicle has always been driven with carpet front floor mats, instead of rubber floor mats ...


My questions are:

1.
Since this bare bituminous material is obviously el-cheapo factory work just to get some deadening done, would it be recommended to remove it all and install proper high-quality alubutyl sound deadening sheets instead? Does anyone know if this factory material is bitumen at all or something else in fact?
Butyl generally is a much better vibration deadening material than bitumen, and the aluminium foil on top of it improves its performance further more.
However, I am worried if it would be possible to properly "imbue" the alubutyl panels to the uneven front section of the vehicle floor. Has anyone done it?
Also, how difficult is it to remove this factory bitumen coating from the floor?


2.
Has anyone else experienced moisture / rust accumulation issues under the carpet with this factory cotton scrap felt?
Would it make sense to remove all this cotton scrap felt from the carpet and install proper waterproof (closed cell) sound proofing foam below the carpet?
How thick could it be before I run into problems with fitting the carpet back into place? Since the current cotton scrap felt is 15 mm thick, I was thinking that 20 mm should still be OK. What about something even thicker?