Has anyone used Hushmat or Dynamat sound deadening material to reduce road noise in a coupe? I'm thinking about putting something in the rear area, under the carpet, to try and reduce the road noise. If you have any experience with these two materials, or any others, pro or con, please let me know.

Thanks,

Jim
jpmlholian@aol.com

 

 

He posted a video , of it , here on the forum last summer....

 

Dyna mat like material does not deaden sounds, it changes the frequency to a lower range, killing rattles and vibration noises a bit. It is solid and can not adsorb sound like fiberglas mat does - slowing the air motion thru friction.

I used it ( dynamat ) to stop the oil can sounds on the roof of my car making its response much lower pitch and less annoying. Its a small car and your going to hear the rear tires and exhaust, to improve the sound pressure level, you would need to add alot of sound adsorbing material. I dont believe this can be done in an appealing way.

One thought that I had was to add a plexiglas window between the trunk and cabin, that would help as we cant access the back anyway unless its to throw a ball cap back.

Enjoy, Woody

 

Woody - Thanks for your input. I would hate to spend hundreds of dollars and have no improvement. Your explanation makes sense and I guess it's just something I have to live with.

Thanks again,

Jim