Using dynamat in convertible

Interior

  1. 440sportfury

    440sportfury New Member

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    Hi All I was wondering if anyone has had any experience putting dynamat sound deadener in a convertible. I have a 1968 sport fury and I have the interior out and was going to put in on the floors and behind the door panels. I do not want to put it in the trunk because I am restoring the car to look original. My question is is it worth it and if anyone would know how much is needed. Some people swear by it for reduction of road noise and heat others say if you don,t do the trunk your wasting your time Thank You in advance for your help Frank
     
  2. saforwardlook

    saforwardlook Senior Member

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    I am aware that Scott with his beautiful 1965 spanish red 300 used some sound deadening material like dynamat or a similar product in his convertible, so perhaps he could chime in on its effectiveness. One way to deal with the trunk noise is to do what Chrysler did, and put a full blanket of a cheaper sound deadener (in their case) behind the rear seat to seal off the trunk noise from entering the cabin. I know that on my fuselage cars, it was an effective way to achieve "torsion quite ride" along with added rubber bushings in the body/suspension to help with noise as well. I plan to add quite a bit of sound deadner to my cars that I restore as well, particularly the floor pan and behind the side panels as you are doing, and up on the cowl.
     
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  3. dart4forte

    dart4forte Active Member

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    Put Dynamat in my 64 Dart Vert. Really made a differance. When I'm ready to do the carpet in the 300 I'll put a layer of the Dynamat in it
     
  4. bluefury361

    bluefury361 Old Man with a Hat

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    I installed sound deadner in both my 69 300 convertible and 69 Fury wagon. It was very effective in both applications. I think the heat transfer through the floor pans is the best advantage. Noise transfer is improved noticeably. I used "Fat Mat". It's identical to Dynamat but half the cost. You can find it on ebay.
    I would figure on about 50 sq ft.

    front floor underlay.JPG rear floor underlay.JPG DSC02060.JPG DSC02062.JPG
     
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  5. rexus31

    rexus31 Senior Member

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    I used Rammat and their Ensolite product. Helped tremendously with road noise and door rattle.

    Rammat.
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    Ensolite.
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    Doors. I also put a strip of Rammat on the interior of the door skin.
    [​IMG]


    No sound deadener in the trunk, only the carpet kit from Gary Goers.
    [​IMG]

    [​IMG]
     
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  6. Big_John

    Big_John Old Man with a Hat

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    For my 70 300 vert, I used FatMat and topped it with Ensolite. I also used FatMat in the doors.

    Overall, it was a night and day difference.

    I also did the trunk floor with FatMat later on, but I really didn't notice any improvement.

    [​IMG]
    [​IMG]
     
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  7. Big_John

    Big_John Old Man with a Hat

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    If you buy the FatMat, the roller that comes with it is just about useless. Get a J-Roller that is used for laminate counter tops. It's about a million times easier to use and the end of the handle is the perfect size for pushing the mat down into the grooves.

    [​IMG]
     
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  8. mr. fix it

    mr. fix it Senior Member

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    Used it in my 66 Polara Convertible. it really help control any body sounds
    I used GT Mat.
    No more warm feet either
    IMG_1039.JPG IMG_1040.JPG IMG_1045.JPG IMG_1060.JPG
     
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  9. MarPar

    MarPar Senior Member

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    x2 for fat mat and a j-roller...

    DSC05513.JPG DSC05530.JPG

    pic comparing the crappy roller Big John eluded to vs the j-roller...
    DSC05550.JPG
     
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  10. Samplingman

    Samplingman Senior Member

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    Why did you do the cross supports behind the rear seat?
     
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  11. MarPar

    MarPar Senior Member

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    figured it would help with noise reduction/vibrations coming from the trunk
     
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  12. 440sportfury

    440sportfury New Member

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    Thank You for you quick responses it seems like a no brainer I am going to go with the dynamat as I am able to get a good deal on it. I appreciate all your help this is what makes this site great
    Regards Frank
     
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  13. Samplingman

    Samplingman Senior Member

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    Did it? I have an original rear seat trunk separator and it is made of the usual cardboard material, but one side is lined with thick batting. I had never seen that before, but then again I'd never had an OEM seat back.
     
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  14. MarPar

    MarPar Senior Member

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    she doesnt have an interior in yet, so I cant tell. lol

    I also have the cardboard that goes behind the seat, although mine does not have any batting. either way, I figured putting the fat mat wouldnt hurt and it took me all of 10 minutes to install.
     
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  15. bluefury361

    bluefury361 Old Man with a Hat

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    I used a heat gun to pre warm and soften the material. Had no problem using the included roller but a tool as mentioned above may be an improvement.
    Be careful just to "warm" the material and don't get to aggressive with the roller.
     
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  16. Ripinator

    Ripinator Senior Member

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    Guys: Does this FatMat/Dynamat have a sticky backing to keep it in place? And what is the Ensolite for? Rip
     
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  17. MarPar

    MarPar Senior Member

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  18. mr. fix it

    mr. fix it Senior Member

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    I bought the 80 mil GT mat as it has a higher melting temperature than the Fat Cat apparently but has a better feel to the pocket book!:lol:
     
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  19. mr. fix it

    mr. fix it Senior Member

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    one last thing, once you peel the backing off, don't let it fold onto itself, it's like duct tape if you have ever had that fold onto itself. there ain't no pulling it apart...
     
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  20. 440sportfury

    440sportfury New Member

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