On 10/06/2019 11:42, Bill wrote:
In message , Nightjar
writes
On 10/06/2019 09:30, Mr Sandman wrote:
Hi peeps, whats the best value sound deadening material for cars?
Dynamat? Any other options one could use? Ive heard of bitumen
flashing being used by some, whats current best practice/best value?
I want to reduce the sound levels of a VW camper.
Ta


Best value is probably what I used back in the 1960s - sound deadening
felt, bitumen faced for the engine bay, uncoated elsewhere. Whether it
is the most effective now available is a different question that I
can't answer.

From experience with felt in a camper van many years ago, the problem
is that felt holds condensation.

Ours rusted out from the inside.

Maybe a VW would be better.

I didn't notice that in my car, but it had a chassis, so bodywork rust
was less of an issue and quite a bit of it was glass fibre replacement
panels anyway. Perhaps a high density closed cell foam would be a better
choice.

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Colin Bignell