u/ImGoob

Been trying to shop for acoustic foam that lays on-top of the butyl rubber/aluminum layer.

I can’t find anything about it online, and most of the search results are money-demanding like ResoNix. Are there any known acoustic foam layers on the market? Almost nothing pops up when I search for it, except for mats that already have butyl rubber & ads. I think I’m missing something.

I have Blackhole Sound mats on my doors, but I wanted something more cost-efficient for the floors & roof of my car. I’m looking at Canopus 0.8mm butyl rubber and now just searching for a good acoustic layer to make it three-layer.

Anything helps, thank you!