Soundproofing

[ndevans]

Has anyone got any experience of a product called Skinz?
Link here:-
https://www.skinzsounddeadening.co.uk/services-all/

[Andmurph]

I have no experience of Skinz but their poor website would bother me.

I have soundproofed several vehicles with Silent Coat products with fantastic results. Mt 2013 Volvo V70 D5 is quieter than my 70 plat Mercedes E400d. Far more reliable as well!

I can recommend these guys based on my experiences.

https://www.deadening.co.uk/

[mike1864]

The last time I had the door panels off, I wedged a few small cubes of high density plastic foam between the various struts/window rails and the outer door panel. The theory is that their bracing effect reduces that panel's resonance; acoustically it turns that door's central antinode into a node. Plus it helps reduce any rattles in those door components.
This strikes me as more effective than a stick-on (or spray-on) layer; which just adds mass to the panel, without significantly modifying its movement.
It's not the sort of crumbly foam that easily fragments; it's the slightly shiny, waxier" stuff, that often protects higher end AV goods in transit. Robust, but compressible.
Obviously this regime doesn't work on the car's other panels.

[ndevans]

On a slightly different note, I have been playing with exhaust supports over the last week. I have a Maniflow 3 branch manifold and large bore exhaust and it only had two supports, one at the very rear under the rear doors (Traveller) and one next to the front leaf spring hanger.
I have added a third strap between the front silencer and the leaf spring hanger, and replaced the rear rubber strap and slightly repositioned it.
The whole system is now tighter and I am mildly surprised at the difference in exhaust noise at a steady 60. It's not game changing but it is definitely quieter, more subdued and a bit less ear shattering and tiresome.
The proof will come in a couple of weeks when I take it to the East Midlands for the weekend.

[svenedin]

I did a lot of soundproofing to my old Skoda Fabia VRS years ago and it worked very well but I have serious concerns about using the same kind of self-adhesive products on my Morris. My main concern is the potential for trapping moisture leading to severe, hidden corrosion. The original bulkhead sound-deadening on my Morris has largely disintegrated with age but although that hessian type stuff is not hugely effective at least it has a chance of drying out and it is only held in by rivets rather than being stuck to the metal.

Stephen

[michael4]

I used the stick on stuff on the rear bulkhead of my Fiat 600 and it certainly made a difference. I've used the leftovers to cover the transmission tunnel cover on the MM, it has certainly quietened down that noisy box of rattly bits underneath it. I wouldn't use it anywhere where water might get to it.

We've had a Fabia 1.9tdi for over ten years, I've got used to the racket.

Anyway, the Morris is convertible and I'm deaf in one ear so don't go by my findings!

[svenedin]

My Morris is convertible too so sound deadening is of rather limited use. My bonnet actually has a sort of black bitumen type sound deadening on the inside. I believe this was applied by the dealers rather than at the factory. I have seen other Minors with it. It was painted on, not applied in sheets. I was going to apply some sound deadening to the bulkhead area but then I had to fit a new loom in a bit of a hurry, not in a planned way. With the new loom installed I lost the enthusiasm to take everything apart behind the dashboard to fit the original type sound deadening. I did get as far as finding some more original type bifurcated rivets. One thing to consider is that sound deadening does also have thermal insulating properties. In the summer heat it is noticeable how hot the transmission tunnel gets as well as the bulkhead.

Stephen