In message , Nightjar
writes
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.

Well, my camper was Commer Van based, and we slept in it, 2 adults and 3
children. The OP was talking about a camper, and I would think
condensation is something to consider in any of them.

I would think foam would be OK if thoroughly stuck on with nowhere for
water to run and hide.
--
Bill