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Projects Dynamat alternative

Discussion in 'Traditional Hot Rods' started by TBonez, Apr 1, 2021.

  1. TBonez
    Joined: Dec 21, 2004
    Posts: 283

    TBonez
    Member

    Gettin ready to put some sound deadening material in the ‘29 and the only one I’ve heard about is Dynamat. Pricey but willing to spend the coin unless there is a product out there that works just as well at a lesser cost. I was also thinking of glueing jute padding on top of it for an extra layer of sound barrier.


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  2. saltflats
    Joined: Aug 14, 2007
    Posts: 11,568

    saltflats
    Member
    from Missouri

    I have used the Peel & Seal, seems to work good.
     
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  3. 55blacktie
    Joined: Aug 21, 2020
    Posts: 789

    55blacktie

    Big-box store.
     
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  4. Gammz
    Joined: May 10, 2015
    Posts: 806

    Gammz
    Member
    from Lincoln Ne


  5. ^^^^^^^^^like he said. The Killmat works great and costs way less.
     
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  6. Bigdavid
    Joined: Feb 10, 2012
    Posts: 39

    Bigdavid
    Member
    from Tennessee

    I don’t know about the jute padding though,they say it wicks up moisture and holds it.
     
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  7. BJR
    Joined: Mar 11, 2005
    Posts: 8,010

    BJR
    Member

    I used Killmat in my 49 also.
     
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  8. sloppy jalopies
    Joined: Jun 29, 2015
    Posts: 5,255

    sloppy jalopies
    Member

    IMO... use the jute, but don't glue it down, it holds moisture...
     
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  9. Mimilan
    Joined: Jun 13, 2019
    Posts: 1,211

    Mimilan
    Member

    And Jute stinks when damp for a few days.

    The OP should try Acoustic foam, or closed cell foam (used for holding heat in swimming pools)
     
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  10. oriewall
    Joined: Jul 12, 2008
    Posts: 14

    oriewall
    Member

    I used killmat in the 57 Chevy, good price easy to work with.
     
  11. TBonez
    Joined: Dec 21, 2004
    Posts: 283

    TBonez
    Member

    I’m nixing the jute padding idea. Checked out the killmat n also found Noico on Amazon. Both look like they’ll do the job


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  12. Sum54ford
    Joined: May 24, 2012
    Posts: 285

    Sum54ford
    Member
    from St. Louis

    8C7FD9C4-6C85-4A48-A07C-F11589D3C1E3.jpeg F4436FD2-144C-4E81-ABF1-16C6E7AC2928.jpeg I used the Kilmat in my 51 Merc. I would definitely recommend it.
     
  13. SlamIam
    Joined: Oct 8, 2007
    Posts: 468

    SlamIam
    ALLIANCE MEMBER

    Used Kilmat here with Noico insulation over it
     
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  14. rusty rocket
    Joined: Oct 30, 2011
    Posts: 4,742

    rusty rocket
    Member

    Go to a Lowe’s and get the sealing tape for around windows, I believe it’s about 10” wide. I used it in my deuce sedan but it’s been a number of years ago.
     
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  15. 47chevycoupe
    Joined: Dec 25, 2007
    Posts: 540

    47chevycoupe
    Member
    from Finland

    EDIT:
    I was living in Missouri at the time I had installed the window seal tape. The truck was black and it always sat outside.

    A few years ago I used this on an OT truck door. It worked but after a couple years it started to melt and it ran down the inside of the door and out the weep holes and down the side of the rocker panels.
     
    Last edited: Apr 2, 2021
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  16. Blues4U
    Joined: Oct 1, 2015
    Posts: 7,048

    Blues4U
    Member
    from So Cal

    I've used it as well in a couple of cars, with very good results.

    Beware of the Eastwood stuff, someone here posted a thread where the asphalt ran out and made a mess when it got hot.
     
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  17. Almostdone
    Joined: Dec 19, 2019
    Posts: 810

    Almostdone
    ALLIANCE MEMBER

    I spent quite a bit of time last year asking myself which sound deadened to use in my Model A. Finally decided that every thing else is compared to Dynamat (which yes is more expensive than others), so I just bit the bullet and went with Dynamat. I used the Extreme everywhere I could attach it, the Dynapad in the roof and inside of the firewall, and finally added Dynadeck over the floor.

    Super nice.

    John
     
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  18. rusty rocket
    Joined: Oct 30, 2011
    Posts: 4,742

    rusty rocket
    Member

    Haven’t had a problem with mine and the car has been on the road for five years.
     
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  19. Another vote for Kilmat
    Used it in my 30 and my buddies 32
    Chappy
     
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  20. Never2low
    Joined: Jan 14, 2008
    Posts: 1,151

    Never2low
    Member

    Last edited: Apr 1, 2021
  21. modagger
    Joined: Jul 2, 2013
    Posts: 327

    modagger
    Member

    After reading as many posts as I could here about this topic, I went with Peel and Seal from Lowe’s. Prepped everything really well and it went on and stayed where I put it.

    Never any odor, even from the firewall area which gets a bit toasty during warm summer days. The hotrod bumps and bangs are still there, just not as sharp sounding.

    I’m satisfied with the product, and with the money I saved over the cost of the more expensive, “made for” products out there.

    It did cut down on the amount of heat radiating through the firewall too.

    37DBB0BD-0F55-4CA8-88F4-A774C31BB751.jpeg
     
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  22. V8Vic
    Joined: Dec 21, 2007
    Posts: 10

    V8Vic
    Member
    from norcal

    I used Noico in my ‘30 Victoria. Did everything I could get to and as I remember it took less than 2boxes. Each box was 36 square feet and cost about $68 a box. I used the black color as I figured I wouldn’t complete the interior for a while and didn’t want to look at all that silver. Reasonably priced. REALLY deadened the sound. Very happy with it so far.

    DC0D6192-B2FB-429C-9305-8726A30C3E0E.jpeg ECAD56E9-59D9-4938-84F0-7DBC1CF88B81.jpeg 487D93A0-D8FC-4794-B2C0-7161F56882AC.jpeg
     
    Last edited: Apr 1, 2021
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  23. I used the stuff which is fitted under corrugated steel roof sheeting, about 1/4" thick, with reflective stuff on each side. It's called Kingspan here, probably something similar available in the U.S. The best bit was that it was free offcuts from a commercial roofing job.
     
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  24. gene-koning
    Joined: Oct 28, 2016
    Posts: 3,207

    gene-koning
    Member

    Noico black on 3 vehicles now. Cuts down on heat transfer and does a great job at sound deadening. Doesn't have their name plastered all over it. Gene
     
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  25. 61SuperMonza
    Joined: Nov 16, 2020
    Posts: 489

    61SuperMonza
    Member

    There are many different products for sound and heat suppression. I used Dynamat and am very pleased with it. I used it because it was stocked in town and with shipping other products would have cost almost as much.
    Bottom line is these products really work well. The difference in my car was crazy.
     
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  26. 97
    Joined: May 18, 2005
    Posts: 1,978

    97
    Member

  27. Stogy
    Joined: Feb 10, 2007
    Posts: 24,262

    Stogy
    ALLIANCE MEMBER

    I suspect these anomalies could be related to Climate and storage of the vehicle...ie outside versus inside...he's in Finland which I don't necessarily associate with hot high temps but as we know in enclosed vehicles when all the windows are up on a sunny summer day temps over 100f are not unusual...assumption on my part but these are my first impressions...
     
  28. indyjps
    Joined: Feb 21, 2007
    Posts: 5,258

    indyjps
    Member

    kilmat in my daily, works great.

    Lobucrod - bought some for my project - havent driven the car yet. Site seems dead, I cant find a source for it now.
     
  29. ydopen
    Joined: Mar 14, 2010
    Posts: 211

    ydopen
    Member

    I used Rattletrap by Fatmat in my roadster. No problems. If I remember they had free shipping.
    Cheaper than Dynamat.

    John
     
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  30. flynbrian48
    Joined: Mar 10, 2008
    Posts: 7,641

    flynbrian48
    Member

    Me too. $16 for a 25’ roll, 5 rolls did the flirt and riff of my ‘52 DeSoto wagon. Great stuff.


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