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more on insulation

Discussion in 'The Hokey Ass Message Board' started by okiedokie, Aug 6, 2007.

  1. okiedokie
    Joined: Jul 5, 2005
    Posts: 3,524

    okiedokie
    Member
    from Ok

    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.
     

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  2. Good post.

    An instrument that tells the tale is way better than the ol' subjectve, "I think it's better."
     
  3. okiedokie
    Joined: Jul 5, 2005
    Posts: 3,524

    okiedokie
    Member
    from Ok

    Thanks, lobucrods has offered to send a sample of his and I will test it the same way. Just over the Liz Skin and then over both. It would be neat if Nick could do this with his 32 with no Liz Skin.
     
  4. Johnny1290
    Joined: Apr 20, 2006
    Posts: 2,835

    Johnny1290
    Member

    I'm about to install some of the lobucrods insulation. I wasn't overwhelmed by my friend's lizardskin results, and he put on both the heat resistant and the sound deadener lizard skin throughout his '54. No scientific testing though, so it's hard to say.

    I'd love to hear what the results are of Okiedokie with the lobucrods insulation. His review here is about the best I've seen comparing the heat insulating properties.

    Now that it's October I don't mind the heat so much off the floorboards, but during the summer? Not fun.
     
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  5. plan9
    Joined: Jun 3, 2003
    Posts: 3,905

    plan9
    Member

    interesting, thanks for the post. deffinately useful information.
     
  6. As the old saying....."one good test is worht a thousand expert opinions"
     
  7. Lobucrod
    Joined: Mar 22, 2006
    Posts: 4,076

    Lobucrod
    Alliance Vendor

    Alliance discounts don't hurt either.
     
  8. belair
    Joined: Jul 10, 2006
    Posts: 7,992

    belair
    Member

    I posted a thread about lobucks' insulation a couple of months ago, using an ir thermometer. Got a good reduction in temp. on a black car.
     
  9. okiedokie
    Joined: Jul 5, 2005
    Posts: 3,524

    okiedokie
    Member
    from Ok

    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
     
  10. Lobucrod
    Joined: Mar 22, 2006
    Posts: 4,076

    Lobucrod
    Alliance Vendor

    Thanks to both of you guys for taking the time to do a few tests on our insulation.
    Belair, I had totaly missed your post where you had tested our insulation. I guess it had scrolled off the first couple pages before I got a chance to read it.
    Also many thanks to those who have bought our product in the past. Now that we are an Alliance vendor you can get the Alliance discount.
    We will be at the DFW swap meet at Fort Worth at LaGrave Field the 26th, 27th, and 28th of this month. we look forward to seeing some HAMBers there.
     

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