Sound deadening paint

[wally]

I'd like to quieten my Tdi 130 CC a bit. Rubber and soundproofing material is all very expensive though, so I was just wondering whether anyone has had any success with sound deadening paint sprayed onto the underside of the floor of the cab.

[Distortion]

If it is directly attached to the surface the noise is transmitting through I doubt it would work too well I've tried some stuff before and found it mostly changed the pitch of the noise rather than the volume

I've had most success using a 2 soft layers foam with a dense layer of rubber in the middle

no where near as good as the professional stuff but was nice and cheap for what i needed

[Sue]

We sprayed the underside of mine with stone guard and it definitely has deadened some of the noise of stones flicking up underneath the car.. can't say it's helped a lot with general road noise though..