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3M Thinsulate (TM) AU4002-5 AcousticThermal Automotive Insulation Double Scrim

3M Thinsulate (TM) AU4002-5 AcousticThermal Automotive Insulation Double Scrim

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$89 USD on DIYvan
3M AU4002-5 sound and thermal insulation engineered for vehicles. 60" wide, scrim on both sides. 1 linear foot is 5 square feet. Material comes compressed from 3M. The material will expand to 1 inch. Thinsulate is FMVSS 302 certified (federal motor vehicle safety standard). We do not recommend this variety for the walls and ceilings. AU can be used under floors or around batteries. We recommend SM600L for Walls and Ceilings. Also suitable for marine applications.Recommend using 3M 90 Adhesive Spray to apply to the Van skin. Tips for insulating: http://impact3d.com/Thinsulate_installation.html Please call if you are in Alaska or Hawaii for shipping 541-49O-4292 If you have questions about this product you can call Hein at 541-49O-5O98

Forum Discussions about this Product

1 - 5 of 5 Posts
  1. V

    sound dampener on wheel wells

    12
    2K
     by Hein
  2. S

    Rear Wheel Well Liners Sourced & Installed

    2 3 4
    73
    17K
     by ArgonautVans
  3. S

    3m thinsulate under flooring

    2
    33
    2K
     by IanCH
    1. Hein

      · Premium Member
      Joined
      ·
      1,536 Posts
      #13 · (Edited)
      Some of our customers have used AU4002-5 Thinsulate under their floor. We tried it in our 130 Transit build and it worked well. Very quiet and good thermal performance. We did later add some furring around the perimeter (was not needed in middle) to eliminate deflection in the floor at the edges when you stand or step there. Thinsulate is not as supportive as our minicell system. But Thinsulate is super easy because you just roll it out and put the floor over it.

      We do not recommend extensively furring out floors or using rigid insulation materials. They tend to transmit chassis vibrations into the finished floor causing it to become a speaker for those vibrations which results in noise. We believe an isolated floor is better. We do now offer thicker minicell to increase R-value.

      All the best,
      Hein
      DIYvan

      Ready to put floor in. White strips are PVC furring. Notice that there is no furring in middle.


      Furring was attached with VHB tape.


      Detail of Thinsulate AU4002-5 in under slider step well. This can also be done under step wells in cab and is very effetive in reducing road noise coming through those areas. This photo is prior to furring being added.


      Dog approved floor.


      Video of our crew van floor which uses thicker minicell:
       
  4. joe.horton.jr

    How to terminate thinsulate at edge of window?

    5
    801
     by joe.horton.jr
    1. Hein

      · Premium Member
      Joined
      ·
      1,536 Posts
      #2 · (Edited)
      We use cloth electrical tape to cover edges and make seams on Thinsulate scrim. Spray a bead of 3M 90 on the scrim to make the tape stick better.

      Here is a wide version of the tape that works well: https://www.amazon.com/gp/product/B075CY4BCZ

      You can also remove the Thinsulate fibers and leave a flap of scrim that can then be folded over and attached to the other side with spray adhesive. (see second video)

      If making insulated black out shades we suggest using AU4002-5 which is 1" thick with scrim on both sides. 3M Thinsulate (TM) AU4002-5 AcousticThermal Automotive Insulation Double Scrim

      All the best,
      Hein
      DIYvan

      videos

       
    2. joe.horton.jr

      · Registered
      2022 Transit 350 HR Cargo AWD, LWB, all windows, Avalanche Gray, AC and Coolant taps,
      Joined
      ·
      124 Posts
      Discussion Starter · #4 ·
      Hein said:
      We use cloth electrical tape to cover edges and make seams on Thinsulate scrim. Spray a bead of 3M 90 on the scrim to make the tape stick better.

      Here is a wide version of the tape that works well: https://www.amazon.com/gp/product/B075CY4BCZ

      You can also remove the Thinsulate fibers and leave a flap of scrim that can then be folded over and attached to the other side with spray adhesive. (see second video)

      If making insulated black out shades we suggest using AU4002-5 which is 1" thick with scrim on both sides. 3M Thinsulate (TM) AU4002-5 AcousticThermal Automotive Insulation Double Scrim

      All the best,
      Hein
      DIYvan

      videos

      Click to expand...
      Thanks for the comments and links. In 2 yrs of reading forums, I don't recall noting that double sided thinsulate was made. I would have bought some. Your smear glue at the cut edge definitely beats my blow torch the cut edge method. Following is a photo using 3M 90 adhesive rolling a 3 inch wide piece of cloth over the edge. It looks good and still is flexible. I can even sew thru this sandwich but have not tried with velcro yet. Which makes more sense, leave one inch of bare metal and use sewn in magnets to hold the window piece in place, easy to pull off, or glue Velcro on metal and attach the other part of the self sticky velcro with some stitching to the thinsulate panel (with a blackout curtain material attached on the window side. Or run the wall thinsulate to the edge of the metal and hold on with the spray adhesive and then on top of this at the edge glue on velco. Bottom line seems to be: Magnets or velcro for window piece then butt joint or overlap joint for the edge of the wall insulation?
       
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