Sound deadening - experiences?

[ralphy12345]

I'm doing my winter refurb on the Chim and part of that is replacing the carpets, most of which has been taken out already.

I'm thinking this would be a good time to use some sound-deadening material throughout the cabin prior to having the new carpets fitted. A trawl on eBay has thrown up a number of suppliers: all claiming their's being the best (of course) and with differing material's - and prices!

So can I have some feed-back from those owners who have had this done: what did you use and were you pleased with the results?

TIA

R

[SILICONE KID]

Dynamat
http://cgi.ebay.co.uk/Dynamat-Wedge-Pack-4-SQ-FT-T...

Edited by SILICONE KID on Saturday 25th December 20:39

[IainZ]

SILICONE KID said:

Dynamat
http://cgi.ebay.co.uk/Dynamat-Wedge-Pack-4-SQ-FT-T...

Dynamat is probably the best stuff & if you want as much as is in that picture then buy the "bulk pack" -much cheaper. You get 9 sheets with that & you can always sell on what you don't use.

Its also not necessary to plaster the stuff from wall to wall like that though - sound deadening is not there to block noise, its there to stop the panel vibrating/resonating & that can be achieved with as little as 30-50% coverage.

See http://www.sounddeadenershowdown.com/products/cld

If you then want to absorb or block noise as well then you need some different material on top.

Edited by IainZ on Saturday 25th December 20:59

[ralphy12345]

SILICONE KID said:

Dynamat

Thanks, how much did you need to buy to cover your Chimaera?

R

[Alexdaredevilz]

How much will it all weigh?

Also doesn't most if the noise come from the roof?

Alex

[trv8]

Save yourself a lot of money. You can use roof flashing tape, available in various sizes. A roll of this will do the same job as Dynamat but will be so much cheaper

http://cgi.ebay.co.uk/Flash-Band-Roof-Flashing-Fla...

[ralphy12345]

Alexdaredevilz said:

How much will it all weigh?

Also doesn't most if the noise come from the roof?

Alex

There's a lot of road noise that comes through the floor and in particular the transmission tunnel - where the original insulation had disintegrated.

I'm not overly worried by the weight, can't be that much anyway.

R

[ralphy12345]

trv8 said:

Save yourself a lot of money. You can use roof flashing tape, available in various sizes. A roll of this will do the same job as Dynamat but will be so much cheaper

http://cgi.ebay.co.uk/Flash-Band-Roof-Flashing-Fla...

Have you actually used this??

"So can I have some feed-back from those owners who have had this done: what did you use and were you pleased with the results?"

R

[rstsye]

i used a similar roofing product from tool station on a vw panel van certainley did the job on that,but that was metal panels not fibreglass.
it does smell a bit as its got a pitch backing.

sye

[Ant.]

Excuse me if I have the wrong end of the stick here, but what is the point in a soft top car ??






















Oh hold on This is the Chimp forum isn't it??? Always have the lid on !!!

[adyw]

possibly a silly question, but does the glue for sticking the carpet down, still stick to the sound proof material.

[spend]

Ant. said:

Excuse me if I have the wrong end of the stick here, but what is the point in a soft top car ??






















Oh hold on This is the Chimp forum isn't it??? Always have the lid on !!!

I suppose "hearing the birds & smelling the coffee" isn't something that you can enjoy?

..when you have such ugly cars and have to get them off the streets out of view as quickly as possible

[phillpot]

Ant. said:

Excuse me if I have the wrong end of the stick here, but what is the point in a soft top car ??

Because there is nice noise and bad noise, drumming, viabration, resonance, etc.....

[ralphy12345]

phillpot said:

Ant. said:

Excuse me if I have the wrong end of the stick here, but what is the point in a soft top car ??

Because there is nice noise and bad noise, drumming, viabration, resonance, etc.....

Plus transmission noise, gearbox noise, road noise,......

Whilst I love the sound of the exhaust, I'm not too keen on the others listed. I'm also keen to make the interior feel as 'plush' as possible and also to be able to hear the audio on longer journeys, plus my life revolves around telephone contact so the ability to give the hands-free as much chance as possible of being heard is also a requirement.

So all comments from those who have actually done this before are welcomed.

R

[IainZ]

ralphy12345 said:

trv8 said:

Save yourself a lot of money. You can use roof flashing tape, available in various sizes. A roll of this will do the same job as Dynamat but will be so much cheaper

http://cgi.ebay.co.uk/Flash-Band-Roof-Flashing-Fla...

Have you actually used this??

"So can I have some feed-back from those owners who have had this done: what did you use and were you pleased with the results?"

R

When I read up on this opinion was divided. The biggest criticism of the flashing tape is that its bitumen backed - which can smell a bit if it gets warm. Its also heavier I gather.

Dynamat is not cheap & there are similar products around which are a bit less expensive but on balance I went for the Dynamat Extreme for the performance, the weight & the certainty of it doing what it was supposed to.

Any sound deadening material is not easily removed so you only want to do it once!

Edited by IainZ on Monday 27th December 14:02

[Jakg]

trv8 said:

Save yourself a lot of money. You can use roof flashing tape, available in various sizes. A roll of this will do the same job as Dynamat but will be so much cheaper

http://cgi.ebay.co.uk/Flash-Band-Roof-Flashing-Fla...

Flashing tape is certainly not the same as "proper" sound deadening, although Dynamat is quite expensive for the performance is offers.

What sort of sound do you want to deaden? Dynamat is used for panel resonance, which is really only an issue for ICE installs.

If you want quieter road noise you need MLV (mass loaded vinyl) or similar. It depends what you want to block!

I know envirolay works well as a budget road noise deadener.

[trv8]

Jakg said:

trv8 said:

Save yourself a lot of money. You can use roof flashing tape, available in various sizes. A roll of this will do the same job as Dynamat but will be so much cheaper

http://cgi.ebay.co.uk/Flash-Band-Roof-Flashing-Fla...

Flashing tape is certainly not the same as "proper" sound deadening, although Dynamat is quite expensive for the performance is offers.


I know envirolay works well as a budget road noise deadener.

FFS. I didn't say it was the same product, I said that it does the same job ie. it stops panels resonating/vibrating. I was offering a cheaper alternative to 'PROPER' sound deadening. I have used this and it works well.


I see it's OK for you to recomend a 'Budget' alternative though!

[The Dangerous Elk]

Flashing tape does not smell if you use MLV (mass loaded vinyl) over the top of it.