I just finished putting 160 sq ft of dynamat type deadener in the 67;floors ,roof,door panels,inner wheel housings and trunk as well as firewall,next will come 1/4 inch closed cell neoprene foam. I will add more to the tunnel and below the rear seat above the diff and mufflers. I am trying to quiet it as much as possible and weight is not so much a concern in this restomod. The lizard skin should probably be quicker than Dynamat to install.
Is the dynamat applied like tape? I already have the old tar type deadener, I would like to install something below it so it doesn't stick to the floors..
All of the asphalt mats failed at almost the same point. Both eDead mats, FatMat, Brown Bread and B-Quiet Extreme all melted. The asphalt ran out into a black puddle of goo and the foil fell down. None of them could survive several hours at 160ºF. The Dynamat Original failed differently than the aluminum foil skinned mats. It actually does have a PSA layer that held it in place longer than the others. It never melted, but instead cooked into a brown crumbly thing, but really, who cares? Dynamat Original may have been the bees knees back when people used that phrase, but its day is past. It is expensive and by Dynamic Controls own highly suspect performance testing, doesn't perform worth a damn.
I was going to try a product called QuietCar throughout the passenger compartment floor boards, interior firewall, kickpanels, and doors. I used their QuietRock sheetrock in my home and it worked well.
I don't want to use anything that can trap moisture against the floor boards (even if they get wet). I'm not looking for maximum heat reduction either.
http://www.quietcar.net/
I used this product in my car and I am very happy with the results. There are a few photos of the finished install in my CarDomain pages. I would strongly recommend that you spray it on and not brush it. The thicker the coat the better results, I found that when I brushed it on I tended to make the coat very thin. Spraying it on went pretty quick as well. Check when you order it, there are two colors, black and gray, once dry not much difference in color.