Sound deadening?
I have read about Peel & Seal @ Home Depot, but I wish to keep it butyl based. Don't want to risk the asphalt smell being in the car as some have had.
Boom Mat, X Mat, Hush Mat I've seen people use all of these. Google sound deadening and there will all kinds of post about what people used and reviews.
I put on a layer of Dynmat straight on bare panels then a layer of MLV from Raamadio. Quiet as a mouse in there now.
Dynamat is for reducing drone and vibration in panels, foam and MLV is for sound reduction. Both together work very well.
Anyway, redtan hit it spot on. typical dynamat (tar-like stuff with the metal backing) is for reducing vibrations and harmonic frequencies. For straight up sound deadening, you want foam panels and the like.





