Dynamat Advice
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Thread: Dynamat Advice

  1. #1
    Fellow Frogger! G4ME's Avatar
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    Default Dynamat Advice

    Has anyone used Dynamat for sound and heat proofing in the engine bay?
    I'm looking at covering the firewall in Dynamat Extreme and then Hoodliner.
    It's a bit expensive so I'm just interested in people thoughts on the product or alternatives.

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    Cheers...Paul
    There is a law against doing more than 100kmh...there's no law on how fast you get to 100kmh!!!

  2. #2
    Fellow Frogger! biologist's Avatar
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    I know someone who used it in their doors and engine bay, years ago now, (probably not the same standard of product? as these days) but they were very pleased with the insulation from road and engine noise which were their main issues.
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  3. #3
    1000+ Posts cav91's Avatar
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    My boot and front doors are full of it. But for very different reasons! For my purposes it works very nicely
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  4. #4
    Real cars have hydraulics DoubleChevron's Avatar
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    I found body deadeners made the car transfer heat more quickly. You could always try insulation....

    EZ Cool Automotive Insulation heat barrier and noise reduction for cars, trucks, classic cars, street rods and much more

    I know some nutter that tried it and reckoned it was alright

    Dynamat would add a LOT of weight to the car if your using it for motor sport.

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    1000+ Posts jo proffi's Avatar
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    Weight is always the killer, so I used neoprene with foil side on my firewall to great effect.
    It didn't handle the under bonnet use and the foil fell off, but it still insulates the bonnet without the foil.
    Have also done my bro's sprinter van roof with it, also to great effect and the same stuff has been used to insulate the internals of a a sliding door cavity.

    The lightness of the product makes it so easy to use, but of course there is bugger all mass there so not good for all applications like doof mobiles.


    Jo

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    1000+ Posts geckoeng's Avatar
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    Hi Paul,
    I found Dynamat and Dynaliner very good for use in Graeme's Gordini. Dynamat on the floors as shown and Dynaliner 8mm in the roof. The car was a bit noisy from the back when we first got it running, and some 8mm Dynaliner on the back parcel shelf fixed that very well. I also did Dynamat on the inside of the fuel tank cover in front of the motor.

    Good source Dynamat Xtreme 9 Sheet Bulk Pack Sound Deadener | Motoquipe

    This is good as it is pre-glued, and really sticks. Glue application is always a problem, I feel.

    Dynamat Advice-insulation-back-sml.jpgDynamat Advice-insulation-front-sml.jpg

    Ray
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    Ray geckoeng

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    1000+ Posts pottsy's Avatar
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    Quote Originally Posted by DoubleChevron View Post
    I found body deadeners made the car transfer heat more quickly. You could always try insulation....

    EZ Cool Automotive Insulation heat barrier and noise reduction for cars, trucks, classic cars, street rods and much more

    I know some nutter that tried it and reckoned it was alright

    Dynamat would add a LOT of weight to the car if your using it for motor sport.

    seeya
    Shane L.
    I know another. Ezi-cool gets my vote!

    Cheers, Pottsy
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    My only thoughts would be to make sure there are no leaks into the car at the end of the exercise. I just think of the glue becoming unstuck, and water getting underneath. Likely more of a problem if the Dynamat is used on the floor like the bitumen mats originally used on many cars.
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    Fellow Frogger! G4ME's Avatar
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    Thanks guys. This is really helpful. I'm not too stressed about the weight as it wont be a competition car. I'm more worried if the Dauphine will carry my 100kgs up a hill than the sound/heat proofing firewall :-)

    Am I correct in assuming the original card for the firewall protection was just some sort of pressed card and not an asbestos based thing. Just had an awful thought after I'd removed the original.

    Cheers..Paul
    There is a law against doing more than 100kmh...there's no law on how fast you get to 100kmh!!!

  10. #10
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    Paul, I thought dynomat said their product was not for use in the engine bay. Internal use.

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    Quote Originally Posted by DoubleChevron View Post
    I found body deadeners made the car transfer heat more quickly. You could always try insulation....

    EZ Cool Automotive Insulation heat barrier and noise reduction for cars, trucks, classic cars, street rods and much more

    I know some nutter that tried it and reckoned it was alright

    Dynamat would add a LOT of weight to the car if your using it for motor sport.

    seeya
    Shane L.
    Hi Shane,
    I assume the nutter was you given the testimonial on the website?
    Given I only need a small piece for a Dauphine firewall have you got any left over you want to sell?
    Ballarat is heaps closer than Texas.
    Cheers...Paul
    There is a law against doing more than 100kmh...there's no law on how fast you get to 100kmh!!!

  12. #12
    Real cars have hydraulics DoubleChevron's Avatar
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    Quote Originally Posted by G4ME View Post
    Hi Shane,
    I assume the nutter was you given the testimonial on the website?
    Given I only need a small piece for a Dauphine firewall have you got any left over you want to sell?
    Ballarat is heaps closer than Texas.
    Cheers...Paul
    I'd go two layers. Yeah I might have a small amount here. I'll have to see how much is left on the roll that my father grabbed a while back.

    seeya,
    Shane L.
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  13. #13
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    I was looking at just this the other day and found car audio fraternities talking up Ping Jing as an alternative.

    They claim good results and the price is seemingly much better than Dynamat. Also widely available locally through eBay listings such as this one. There's different size packs listed at the bottom

  14. #14
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    i've got some left over if stuck how much do you need?

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    1000+ Posts pottsy's Avatar
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    May be able to help Paul. Size of piece required would help. Cheers, Pottsy.
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  16. #16
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    Quote Originally Posted by pottsy View Post
    May be able to help Paul. Size of piece required would help. Cheers, Pottsy.
    Sweet. It's only for the firewall of the Dauphine resto. So Rough measurements are 1.2m x 0.7m.

    Cheers...Paul
    There is a law against doing more than 100kmh...there's no law on how fast you get to 100kmh!!!

  17. #17
    Fellow Frogger! G4ME's Avatar
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    Quote Originally Posted by thatguy View Post
    I was looking at just this the other day and found car audio fraternities talking up Ping Jing as an alternative.

    They claim good results and the price is seemingly much better than Dynamat. Also widely available locally through eBay listings such as this one. There's different size packs listed at the bottom
    Interesting. That might be a good one for in the cabin. For the firewall I want something with some bulk (5 or 10mm) to replace the pressed card that is there already. good tip though and thanks.
    Paul
    There is a law against doing more than 100kmh...there's no law on how fast you get to 100kmh!!!

  18. #18
    VIP Sponsor David Cavanagh's Avatar
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    You guys are all getting old. I remember the days when it was the louder the better.
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  19. #19
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    On a DS I stuck two layers on bay side and one on cabin side, aluminium cover over bay side and original vinyl on interior.

  20. #20
    Real cars have hydraulics DoubleChevron's Avatar
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    Quote Originally Posted by David Cavanagh View Post
    You guys are all getting old. I remember the days when it was the louder the better.
    Bugger noise .... The stuff stops the massive heat soak dead in it's tracks.... It's worth its weight in gold
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    '72 DS21 ie 5spd pallas (last looked at ... about 15years ago)
    '78 GS1220 pallas
    '92 Range Rover Classic ... 5spd manual.

    Yay ... No Slugomatics


    Modern Junk:
    '07 Poogoe 407 HDi 6spd manual

  21. #21
    Real cars have hydraulics DoubleChevron's Avatar
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    Quote Originally Posted by G4ME View Post
    Sweet. It's only for the firewall of the Dauphine resto. So Rough measurements are 1.2m x 0.7m.

    Cheers...Paul
    Let me know if Pottsy can't help. I should have that much here... Double it up though! It's weighs bugger all, but is very effective!

    seeya,
    Shane L.
    'Cit' homepage:
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    Proper cars--
    '85 Series II CX2500 GTi Turbo I
    '63 ID19 http://www.aussiefrogs.com/forum/showthread.php?t=90325
    '72 DS21 ie 5spd pallas (last looked at ... about 15years ago)
    '78 GS1220 pallas
    '92 Range Rover Classic ... 5spd manual.

    Yay ... No Slugomatics


    Modern Junk:
    '07 Poogoe 407 HDi 6spd manual

  22. #22
    1000+ Posts pottsy's Avatar
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    I reckon I should be able to spare enough for you Paul.

    Busy tomorrow but can maybe drop it over on Thursday.

    Cheers, Pottsy
    Buvito Ergo Sum!

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    2018 C3 Shine ("Oscar" Mrs P's) Grandma's Taxi
    1974 D Special Manual Sedan ("Moby Dick") Weekend Warrior
    2015 C4 Grand Picasso ("Pablo") Workhorse & Grandpa's Taxi
    1982 2CV6 ("Gaston") Seasoned Traveller
    1975 GS Pallas ("GiSelle") Bonsai CX
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  23. #23
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    Default Dave was right!

    Dave did mention that age was a factor here! Back in January 2013 Paul asked about that card material on aussiefrogs and was advised that it would be caneite. Caneite was all the rage in the 50's and used in everything as a sound deadening material. So it was there to deaden sound rather than heat. You can breath easy Paul.

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    Quote Originally Posted by G4ME View Post
    Thanks guys. This is really helpful. I'm not too stressed about the weight as it wont be a competition car. I'm more worried if the Dauphine will carry my 100kgs up a hill than the sound/heat proofing firewall :-)

    Am I correct in assuming the original card for the firewall protection was just some sort of pressed card and not an asbestos based thing. Just had an awful thought after I'd removed the original.

    Cheers..Paul
    G4ME likes this.

  24. #24
    Fellow Frogger! G4ME's Avatar
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    Quote Originally Posted by pottsy View Post
    I reckon I should be able to spare enough for you Paul.

    Busy tomorrow but can maybe drop it over on Thursday.

    Cheers, Pottsy

    Sounds great Pottsy and Thank you also to Shane.
    Where are you? I'm in Gisborne but my good friend Dave Cavanagh would also be a drop point.
    Cheers...Paul
    There is a law against doing more than 100kmh...there's no law on how fast you get to 100kmh!!!

  25. #25
    Fellow Frogger! G4ME's Avatar
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    A big Thank You to Pottsy. I have some firewall protection now.
    I love this stuff.

    Attachment 74811
    There is a law against doing more than 100kmh...there's no law on how fast you get to 100kmh!!!

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