I have used a little Hushmat. The owner gave me some samples when I was building the SEMA cars for Kicker. I was impressed with the product but we had an agreement with Dynamat in place at the time to use theirs. Now that I no longer work for Kicker, I plan to give it a try in my '56. I would use the Ultra and they package it in kits for floors and trunks that are 23"x12" pieces and door kits with 12"x12" pieces. As far as where to buy it, I think they sell at Jegs and places like that. There are quite a few dealers. I am almost to that point in my build. Keep us posted, I would like to hear what your experience is if you use it.
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