Amazon: Sound Deadening

[P1800Ray]

Has anyone used sound deadening on the underside of the bonnet in their Amazon?

I don’t want to use Dynamat as it’s in an area that will be visible.

Brookhouse do some for the P1800 but I can’t see anything for the Amazon.
Thanks

[amaz'in]

Hi there,

I have almost finished sound deadening my entire car, dynamat is a good product however it's glitzy silver finish with bright logo everywhere didn't suit my taste when the car in question is a 50 year old classic.

So I went with 'fatmat' their megamat is available in a plain black finish which is similar to the original bitumen/heavy vinyl fitted to Amazon's. Just had a second batch from Nick, I found him on eBay initially.

I had carpets made for my car and since the interior had to come out it seemed like an ideal time to cross both jobs off my list.

[grumpydad]

Hi
its a old car and they are all noisy
if you look under the bonnet of a modern car
you will find a nicely shaped sort of fury blanket
look at it and you will see clips that hold it in place these go in to the bonnet stiffeners

well the amazon has got no bonnet stiffeners
so you will have to rely on some sort of glue
for me that is much to much of a fire risk when the glue fails

if you can get the engine noise down
you will then start to ask about wind noise
and trans noise
sorry its a old car not a modern
when I get over 100 mph I have to shout
at the passenger its just how it is

[Derek UK]

Is Fatmat available in a size that allows you to do the bonnet in one piece? Maybe 2 pieces side by side or across? Can you post a picture of what you did. My Estate had obviously had felt glued to the underside and there were a lot of remnants just hanging off. I scraped those off but the glue remaining is an eyesore. Needs covering up again. That will reduce the tinny clang and might even soften the engine noise a bit inside.

Using the correct glue, one which still works happily when hot is essential, but these are are readily available from Woolies, Martrim etc.

[swedishandgerman]

With Dynamat and similar, you're only supposed to cover approx 30% of the surface of a panel (door panel, boot lid etc). On the underneath of my Amazon bonnet I have done just that and it sorted out that resonance noise! I would avoid felt, foam and other for reasons: fire and heat dissipation. Keeping under bonnet heat down is a good thing.

[P1800Ray]

Been looking at Silent Coat which seems to have good reviews. Both that and Dynamat would look ugly left as supplied but Sound Deadening Shop says that you can prime and paint to match the under bonnet colour.

Both are self adhesive and don’t require additional glue.

Very tempting !