Sound dampening..

[BigRAWesty]

The foil lined stuff I used is supposed to be good for bonnet..

[Goldifox]

Thanks Biggqwesty will look into it. Dynamite also has a bonet liner I think
Cbeers

[heyspud]

The foil lined stuff I used is supposed to be good for bonnet..

Hey biggqwesty was there much difference between the insulation ebay stuff you bought compared to the car builders stuff, what was the deciding factor going ebay?
Just curious, looking at doing the same process with the bloke depot in my gu, just unsure on insulation

[BigRAWesty]

Nope. Well not that I could tell.
I received a sample of both, but had the same cell structure, feel and weight.
So apart from the foil top I think the main part, the foam, is identical.
Just one is plastered with brand name and the other is not

[v502]

Dynamat helps and there are the spray on kind, I think they called lizard or something like that cant remeber.

[BigRAWesty]

Dynamat helps and there are the spray on kind, I think they called lizard or something like that cant remeber.

There are heaps of different paint on / spray on types. But all do the minimum.
They take care of the panel loading part but not as much as dynamat does.
This stops vibrations which is the cause for some of the noise, but to stop external noises like tyres engine etc you need that extra thick absorbing barrier, that's were the foam comes into it..

Have a read threw the link in the first page and it's explained in more detail

[BigRAWesty]

I'll also add that the bitumen based products do work but fail in the heat.
The dynamat is butyl based and will hold in for a lot longer

[paulyg]

Just did the front doors both inner and outer skins with the fat max product,
Huge difference to the sound quality, now it sounds like a doof doof mobile.

[BigRAWesty]

It does hey.
Did you do just the rubber part or foam aswell?

[FNQGU]

My experience was that the Car Builders foam was a better quality and denser than the other stuff I got from Clarke Rubber. The adhesive also seemed stronger. I ended up using the Car Builders foam for the floor areas, transmission tunnel etc. and the cheaper stuff on the ceiling. Time will tell I suppose.

Re the Butyl compounds like dynamat and what Westy got from the Bloke Depot on eBay, I honestly couldn't tell the difference. I ran out of Dynamat and Westy sent me some of his leftovers so I have it pretty much side-by-side.

I did dynamat the underside of the bonnet too. Not a complete coverage, but probably 75% as I had left-overs. I reckon it made a difference as well.