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DELTONA
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« on: 29 October, 2019, 05:13:38 PM » |
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Hi, with all the various types of sound proofing/deadening material out there its a mine field. Mine has pretty much dissolved and needs replacing therefore I would prefer to go on a recommendation that somebody on here has used on their Fulvia and found it to be good. Any advice much appreciated.
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1993 LANCIA HF integrale | 1969 LANCIA Fulvia Coupe 1.3 Rallye S | 1972 FIAT 695 Elaborazione ABARTH | 1982 FIAT 127 1300GT | 2005 Alfa Romeo 147 GTA | 2010 Alfa Romeo 159ti TBI
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lancialulu
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« Reply #1 on: 29 October, 2019, 05:35:58 PM » |
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What!!! Cut out that beautiful sound a Fulvia makes?  ? |
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Its not the winning but taking part! or is it taking apart?
Lancias:
1955 Aurelia B12
1967 Fulvia 1.3HFR
1972 Fulvia 1600HF
1972 Fulvia Sport 1600
1983 HPE VX
1988 Delta 1.6GTie
1998 Zeta 21. 12v
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fay66
Permanent resident
Posts: 6222
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« Reply #2 on: 29 October, 2019, 07:38:41 PM » |
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What!!! Cut out that beautiful sound a Fulvia makes? ? +1 Brian |
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Own 1966 Fulvia 2C Berlina since 1997, back on road 11-1999.Known as "Fay"
2006 Renault Megane 1 5 Dci Sports Tourer
Dedra Technical Adviser
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Caracad
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« Reply #3 on: 06 November, 2019, 08:49:46 PM » |
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Well you can have too much of a good thing.
I like to soundproof my old cars, often because the old stuff is rotten.
It is very difficult to find proper stuff that works. However it can be done. noise reduction has to be tackled in three ways.
1. Damping. Material applied directly to metal panels. Floor, bulkhead etc, to damp out the steel itself.
For this I use a proprietary self adhesive material like Dynamat. No need to cover the whole surface, just a piece in the middle of the panel should do.
2. Sound absorption. This reduces airborne noise and is normally felt or foam. OEMs now use very lightweight fleece-like material. Hard to get hold of but good. Failing that closed cell soft foam works.
3. Finally a barrier. This is a heavy layer that blocks noise. Bitumen type material used to be common, but OEMs now use more of a rubber or EPDM Sheet.
All this stuff is available through eBay and should be applied in the order listed. Before you do any of this first check that you bulkhead is sealed. Most old cars have loose or missing grommets. These can be replaced or packed with some sort of sealant, or even Bluetac.
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frankxhv773t
Permanent resident
Posts: 2232
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« Reply #4 on: 07 November, 2019, 04:35:02 PM » |
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Dynamat seems to be much used by professional restorers from what I can see.
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nthomas1
Rebel Poster
Posts: 854
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« Reply #5 on: 07 November, 2019, 05:06:52 PM » |
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I've been using Noico Black 80mil (2mm) Butyl Mat from Amazon. Quite a bit less expensive than Dynamat but seems very similar and doesn't have the bold lettering which I (probably irrationally) don't like. I've applied it to the roof of my car, and plan on using it on the floor and bulkheads. It will be some time before I can comment on its effectiveness.
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Norm Thomas
Ormskirk, Lancashire
Own:
1973 Fulvia S2 Coupe
Previous Lancias: S2 Coupe and S3 Coupe in late 1970s
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Caracad
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« Reply #6 on: 08 November, 2019, 08:42:21 AM » |
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Dynamat is expensive. I think I found an alternative, but can’t remember what it is.
Some stuff is just cheap bitumen like stuff that melts when it gets hot.
Proper stuff if more elastic. Here’s mine. Note I didn’t use much as it was only to dampen the panels.
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Caracad
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« Reply #7 on: 08 November, 2019, 08:45:03 AM » |
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Another pic.
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frankxhv773t
Permanent resident
Posts: 2232
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« Reply #8 on: 09 November, 2019, 10:28:27 AM » |
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That Amazon stuff looks very much like the original sound deadening on more modern Lancias.
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BlueKSO
Member
Posts: 55
63 Flavia Coupe
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« Reply #9 on: 09 November, 2019, 04:36:26 PM » |
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Whatever adhesive is used for fixing the sound proofing/deadening to the roof or boot panels, make sure it is heat resistant. Otherwise, in respect of the roof lining, you’ll be wearing it. Both roof and boot lid get extremely hot in the summer when the car is parked up.
Cheers, Peter
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