Insulation Question

[Planojc]

What kind of insulation are most of you using on doors and other areas that will be covered with upholstery? The car is black, so I especially want good insulation above the headliner. Anybody using a spray on type insulation?
Thanks, JC

[31chevy]

I have used the 2ply insulation shield from speedway motors on three vehicles and am satisfied. I thought about the spray on but once you have done that you have to live with it. Just my opinion. pt.# 91080249
Gary.

[okiedokie]

I posted this on the HAMB a couple of years ago, it might be of some help.

This past weekend I had the chance to do some testing with a non-contact temp sensor on my three hot rods. I have just completed installing B-Quirt over the Lizard Skin sprayed earlier. I was a little concerned about that decision and wanted to see, before upholstery, how it performed. The outside temp was low 90's in bright sun. The car is a 1940 Ford coupe painted black. First I tested outside of an area that does not yet have B-Quiet on it [ran out]. I was shocked to find only a 5 degree difference between the outside and directly opposite on the inside. I had the Lizard Skin applied by a local shop that does so regularly. Did they not do it corectly???? Certainly looked good, but how do you ascertain 40 mils? I later decided to do the underside of the car and sprayed it myself, I don't know if I got 40 mils. I do like how the Lizard Skin seals the surface. Anyway, next I tested the area with B-Quite over the Lizard Skin. WOW, a 60 degree difference. I also tested my Blue 46 coupe with some insulation that comes from the aircraft industry [not sure of the name, black, closed cell foam type stuff] and a headliner. It was 40 degree's different. Then I tested my 53 F100 with two layers of the "jute" backed foil. I put the first layer in with the foil toward outside and then was told by many that was the wrong way, so I intalled a second layer with the foil to the inside. It has a Rod Doors ABS plastic headliner. It also tested at a 40 degree difference. Of course, what I don't know is what a effect a headliner will have on the 40, I hope for the better. I have attached some pictures to validate my comments.
Attached Thumbnails

[okiedokie]

Then I followed up with this test of the insulation that Lobucrod [on the HAMB] sells. Hope this helps you.

Test results with Lobucrod's insulation. I wish that I could have done this in the same temperature as the last but didn't want to wait untill next summer. It was only about 78 degrees on this day. I used the trunk lid on my 46 because it has nothing in the way of insulation on the inside. I attached a piece of B-Quiet, Lobuc's, jute with foil, and the airline industry stuff. With the outside temp on the decklid at 111 degrees I obtained the following results. B-Quiet 84 deg, Lobuc 84 deg, jute/foil 88 deg and airline stuff 86 deg's. Later it dawned on me that I could create heat with my "halogen lights on a pole". So I set this up in the shop and tested the Lobuc and the B-quiet on my 40 project that has the Lizard Skin sprayed on. I was able to heat the outside surface to 160 degrees. The area that I had already installed B-quiet over the LS showed 80 degrees on the interior side, the Lobuc over the LS was 85 degrees. I have pics to back this up if anyone needs to see them, well not the halogen light induced temp because the lite was too bright to take any pics. Some thoughts about what I think that I have learned. First Lobuc has a good product that I will use again. It is as good at temp reduction as B-Quiet for a lot less money. It also is lighter than B-Quiet and easy to remove if needed, I learned that removing the B-Quiet after it has been on a while is VERY hard, as it leaves a coating of tar on the surface. Yes it looks and smells like a fresh asphalt coating on a parking lot. I would not be happy to deal with this stuff after it has been on the car for awhile. This experience makes me rethink the value of using this type of stuff. I don't know how Lobucs product would stack up against B-Quiet as far as sound control goes. Also, there did not seem to be any advantage to adding a layer of Lobuc's over the B-Quiet I already have. Putting two layers of Lobuc's product together also seemed to not lower the temp reduction. My next project will probably get a coating of Lizard Skin with Lobucrod's product over it. One last thing in case you did not see my other post regarding the thickness of Lizard Skin. I was recently able to test what was sprayed on my 40 [some by me, most by an experienced shop] with an expensive device that measure mills of coating thickness. Lizard skin recommends 40 mils, my 40 varies from 10 to 20 miils. A friend that recently did the floor of his car had to apply three coats with a roller to get to 40 mils of thickness. Just FYI. Joe

[Roger W Gerow]

Dyna-Mat insulation is one of the best out there. Check Amazon.com for their Dyna-Mat. They offered a very good price and free shipping. It is rather heavy so the shipping is limpoirtant.

[Planojc]

Sponsored Links (Register now to hide all advertisements)

Great information. Thanks

[Bruno]

I used Armaflex in my '52 F1 - it is available in large sheets at HVAC supply houses and is easy to cut and work with - comes in either 1/2" or 3/4" thickness, I think. It is black in color and a very good insulator.

[okiedokie]

Armaflex is what I used in my 46, I had forgotten the name.

[flatmotor40]

I used Dynamat I bought at Summit and it works great in my 40 conv

[39portlander]

Using dynamat on the 39, have used it on my 77 F150 and econoline. Someone is always running it as a monthly special so look for that. Getting it W/free shipping is nice
Nice test results Okie.

[KSFORTYFORDS]

Originally Posted by flatmotor40

I used Dynamat I bought at Summit and it works great in my 40 conv

Where all diid you place it in your 40 conv? I am building one and will be needing to install insulation.

[35 coupe]

I put fatmat in my 35 coupe, same as dynamat and cheaper. Pull the paper off the back and stick it,they give you a roller, worked nice. just type in fatmat on the web.

[flatmotor40]

all the way up firewall to the end of the trunk and on the sides on the 40 conv

[39portlander]

Originally Posted by 35 coupe

I put fatmat in my 35 coupe, same as dynamat and cheaper. Pull the paper off the back and stick it,they give you a roller, worked nice. just type in fatmat on the web.

I did check this product out, nice website/information. Thanks for posting it on this thread, more info is always a good thing.