Soundproofing

Has anyone got any experience of using SilentWave™ RCD (SilentWave sets new standards in marine engine noise management | News | SIDERISE ) I can’t see any articles on the stuff. According to the manufacturer it is a really good product, but they would say that.

I wonder what the performance is like compared to noise killer lead sandwich.

I want re-line my engine boxes.
I’m also looking at this material. Did you find out any more information and did you fit it in your engine bay?
 
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