Thread: Sound deadening kit?

Just Google Car Builders. Choose the waterproof versions for 4WDs. Peel off and stick on.

I was at KLR Automotive today and one of them was fitting stick on sound deadening to a Perentie cab. I think it was called DynaMat.

I have used Car Builders in the past and have been happy with it.

I can recommend Megasorber.
They're based in Blackburn, so you can go into the warehous and see for yourself.
They sell dynamat type stuff, but that doesn't actually do much for noise attenuation .. more so minimises drumming type noises.

I used their 1" 25mm sound insulation product, which helped cut the screaming Tdi to bearable levels now.
Sheets come in various sizes, I think about $60-ish for a 1.5x1.5m piece.
I got two, one plain backed and one sticky backed.
I used the non sticky backed stuff on the engine side of the firewall, and cut it into smaller pieces and 'stuffed' it into all the nooks and crannies I could.
In the end I did the top half of the firewall only, and turned the Tdi scream into a muted drone now.
That is, without motor out type application, the sticky backed product would have been a PITA to do .. so just stuffed it in and it holds there against various pipes, and other fittings.

The sticky backed stuff, I wanted to use underbonnet as a single piece, but I'm just too lazy sometimes to do stuff.
So now that piece may end up in the D2(v8) once engine has been removed and I can do that job properly.
So I may end up getting another piece entirely for the underbonnet on the Tdi one day.

I've used bitumen stuff prior in other cars, and found it really doesn't cut noise much .. eg. engine noise is barely changed.
The difference with that kind of sound deadening is a bit like a room without carpet .. where it 'reverberates' .. in an echoey manner .. fit carpet and reverberation is muted.

The other handy feature of this megasorber in a engine bay is that it's fire retardant, and helps to eliminate excess heat coming through.
Just after I got my D1, I noticed that one of the heater hoses(routed behind the cyl head) was hard up against the corner of the head. Dunno how long the previous owner had it like this, but the hose was now obviously heat damaged and wasn't going to last too long.
Cut a small piece of hose to wedge between heater hose and head, and that wedge also burned through.
Had some off cuts later on of this megasorber material, so used the plastic side on the head.
Been now over 2 years, and the soundproofing wedge is still undamaged by the heat of the cyl head.

After I used up as much as I could of the mat, I had just enough left over where I used that piece now as an engine blanket, over the acoustic mat already on a 300 tdi.
it just sits freely over the top, and when I remove it, I can tell it's not there, engine sounds a bit more thrashy.

Dynamat and carbuilders dynamat knock off both work well. Coating underside of my bonnet worked a treat.

It's expensive but those Exmoor trim moulded floor mats work well too. In NT my main concern was heat and the only way to limit heat off the trans tunnel was the use of that Exmoor trim mat and filling in gaps that were letting hot air from engine bay in (bonnet cable grommet knackered for example)

For heat insulation specifically, you can buy insulation used around hot audio parts such as amplifiers. Car audio installers stock it. Mine came from a NAPA store.

Originally Posted by discojools

Looking for sound deadening kit for my Puma single cab ute. Also looking for some seats. The previous bloke must have put something else in it and has kept them and put in some old ones out of an old Defender to sell the car.

These guys have been around for a while and if price isn't an issue do kits for Defenders.

I have their engine blanket on my Td5 and certainly makes a difference.

Land Rovers Soundproofing - Vehicles - NK Group