How much did you insulate? Did you do inside the doors? Underside of the roof? The backside of the quarter panels? Etc.. Is there a specific brand that stands above the rest? Or are most of them about the same? Keith
There's a ton on ebay. I've had great adhesion with "Kilmat". Floor and roof. I know someone that has done doors but i haven't yet.
I’ve got some threads here where I asked for advice and you can see what I’ve done on the floor, roof and back seat for my 70GS. Didn’t do anything in doors. I did the firewall with the factory style mat/jute piece. https://www.v8buick.com/index.php?threads/rear-seat-divider-question.380201/page-2 https://www.v8buick.com/index.php?threads/roof-insulation.379063/#post-3319311 https://www.v8buick.com/index.php?threads/carpet-install-procedure-advice-tips.375044/page-2
I used the kilmat stuff + blow dryer + a handle rolling tool. I used a little bit of the black sound deadened stuff too as well on the side panels(not in pic). I only did my rear as you can see in the pic. It felt like a cardio work out, many hours. Cleaning and making sure it was warm before pressing the stuff on. To my surprise there was a huge noticeable difference by only doing the rear, in both my music sounding a lot cleaner/concentrated, and my dual exhaust not as audible from inside the car. One day I will do the front…. I was just surprised at how much difference it made doing only the rear I left it cause I was happy with the results. I’ve had it for about a year and some change and there is no smell.
Do the entire floor, up the firewall and the back seat area. Road noise and exhaust sound is what you’re trying to defeat. Your car will “feel” a whole lot more solid once you drive it after installed it’s a major difference.
I have Mat 66 that I will be using on the complete floor and rear seat area on my car. Cost wasn't terrible either.And no tar smell. My friend used the stuff from Lowes and during the summer,it came loose. He had to re do his car and new headliner..
I put Dynamat on the floors of my convertible. Just that made a huge difference. Though Dynamat is a pricier option. Which is a big reason why I didn't do more. There are others that are easier on the wallet.
I did Dynamat in my convertible, firewall to trunk wall and inside door and rear window on sheetmetal. (since I had doors and windows out to re-work tracks and regulators). It made a difference. And would be a real big difference in a non-convertible. Just make sure if you use something other than a well known brand, that it does not off gas. I talked to one guy at a car show that bought something from a "Home Depot" and even two years later, he stated it reeked of petrochemical odor and I stuck my head in the car and it was obvious.
I created and posted a write up on here a few years ago on this subject and tested about four companies product for insulation and Dyna-Mat was the most expensive and had the least benefits of quietness and heat protection. Try doing a search on here under Dyna-mat.
Keith/Woody1640... I found it...Do a search on here under the heading."Dynamat-Should i use it?" The stuff is called "EZ Cool"It was dated July 26th 2018...and Merry Christmas! I pm'd you if you have questions? Glad to help!
I used Dynamat for my first car, it is thicker and conforming to depressed or raised areas it was tough to roll it in. I also used dynaliner on top of the Dynamat, roof, doors, inner doors, inner fenders etc, which in hindsight was way overboard. Second car I used fatmat and liked the product for ease of installation, it’s a bit thinner. I found Using pieces no bigger than 12x12 makes installation easier. Be careful putting it on the inner door panels as it may make installing window cranks and door release tough as they may not go in enough for the retaining clip to catch.
I went with ThermoTec after reading everything I could - not expensive with good reviews. Got it at Summit and it was easy to work with. Will do the floors next when I replace the carpet.
I used spray-on Lizardskin thermal insulation on the underside of my roof on my silver '66. They offer another product for sound control. I'm more concerned with radiated heat from the roof in summer than I am with noise. I added a sheet of the aluminized foam between the headliner and ceiling for a little extra heat insulation. I did the floor of my '66 Special with 'Peal n Seal' from Lowes. With the windows up and the stereo off, it is quieter! I never noticed any smell from it.
