Thread: Cargo Area Carpet / Dynamat

I just finished putting sound proofing in my 300tdi defender. Made a huge difference. No I did not measure before and after but it is definitely worth doing and it's now getting close to being as quiet as my puma. I used 6kg/m2 product from austral insulation in brisbane. Can't remember name but it's a very heavy vynal. 10m roll about $250. Could not lift the roll by myself. Painted floor with 3m stone guard to provide some additional noise reduction. Then glued down s/proof with spray on contact. Filled all holes in firewall with sealant too.

My door seals are rubbish - see daylight and road while driving so I will fix these next. I am also thinking about doing bonnet, firewall on engine side and putting some foil type foam under front floor and seatboxes. If I added up time to do, it would have been about 4 days plus. Lots of work but worth it.

Originally Posted by rockyroad

As much as I would love to go down this path with my Defender I think I will stick with the "hose out interior".

It still remains hose out with the dynamat. It won't hold water and can be scrubbed down.

If you want to go further and use a closed cell decoupling foam and then a noise barrier like mass loaded vinyl above the dynamat, then just install them as loose fit that can be removed. Adhesive Velcro to fix it down works well.

None of the materials absorb or hold moisture and it is still hose out.