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  1. funknut

    Sound deadner

    Any product that is foil backed butyl rubber will essentially do the same thing. Boom Mat, Fatmat, Dynamat, etc. If it were me I’d be shopping for price per sq ft.
  2. funknut

    Sound deadner

    I got rid of all the stock-style insulation and used this. The squares make it easy to install, it's super easy to cut to shape, but the adhesive is very sticky. Once it's in place you're not going to move it without tearing it up. I put it right on top of the sound deadener on the firewall...
  3. funknut

    Sound deadner

    I did sound deadener, closed-cell foam (for heat) and the backed carpet and it made a significant difference. Doors close with a much more 'solid' feel, noise inside the car is much improved. Definitely consider doing inside the doors, they're big panels. With deadener you only need to...
  4. funknut

    Sound deadner

    As said above, all the deadeners that are foil backed butyl are the same, the only difference is thickness. When I did mine, the Noico from Amazon was the cheapest, and had great reviews. Worked a treat for me, great adhesion, etc. Some deadeners are not butyl but are instead foil with a...
  5. funknut

    Sound deadener/insulation recommendations

    I've used both Dynamat Xtreme (67 mil) and the Noico 80 mil and they are virtually identical. Both foil-backed butyl rubber. The Dynamat is a little bit thinner and more pliable, but basically the same. The only difference is the Noico came in smaller size pieces, so a bit easier to work with...
  6. funknut

    Rolled the dice and lost...fraud

    If you think it could be a scam, the best way I've found is to use Paypal and insist on using 'pay for products or services' (don't do 'friends and family'). Offer to split the difference on the extra cost. That way you have protection if scammed, and if the seller refuses your offer then you...
  7. funknut

    Padding under the carpet

    Dynamat is for sound deadening, which is good for large or flat panels that can rattle and create 'boomy' sounds, it is not meant to do much for heat, but it is better than nothing. If you want to keep out heat, the carpet padding and/or other kinds of insulation are the ticket. I have padded...
  8. funknut

    Dynamat Question

    For the interior, closed-cell foam is your best bet. Get something that isn't bubble-wrap style, because that will collapse once compressed. I used this stuff, they have a thicker version as well. It should go over dynamat if you use that. https://www.amazon.com/dp/B07TKXMPH7 Comes in...
  9. funknut

    Dynamat Question

    That's a good point. Some are tar-based, some are butyl-based. The butyl ones have no scent. The tar ones also may not adhere as well in high heat areas.
  10. funknut

    Dynamat Question

    I installed dynamat extreme and some 1/4" closed-cell foam and on top of that I also got the insulation-backed carpet. I probably overdid it. No issues for me, but I don't have a console. Keep in mind Dynamat is designed for sound deadening, not insulation. You don't need 100% coverage for...
  11. funknut

    1968 Charger rear-view mirror question

    I also think the stock position is a bit too low, but I'm pretty tall, so I wouldn't mind moving it up a bit. Not sure if I'll end up shortening mine, but it's not a bad idea.
  12. funknut

    Dash frame I D needed!

    I have this bookmarked: http://www.degeneratepress.com/newport/vin66-74.htm
  13. funknut

    Dynamat / sound deadener, or Line-X? - pros and cons?

    Dynamat is butyl rubber and non-porous, so it will not hold moisture, so you should be good there. If you're interested in heat barrier I would look at a closed-cell foam, they should not hold any moisture. I would avoid the 'bubble-wrap' type, they create lots of voids that can hold water...
  14. funknut

    Recommendations for Piecing in Dynamat in a 1971-74 B-Body

    If you just want to eliminate the boomy noise then with dynamat you can get away with < 50% coverage on the large panels. More won't hurt you, just more cost and weight.
  15. funknut

    Recommendations for Piecing in Dynamat in a 1971-74 B-Body

    The foil-backed butyl dynamat material is firstly a sound deadening product designed to eliminate the boomy sounds made by vibrations of large metal surfaces. It will reduce heat transmission somewhat as well, but is not the ideal product for that. If you just want to eliminate that...
  16. funknut

    Removing Dynamat sheets to perform metal work...?

    I've seen people use rubbing alcohol and dry ice to freeze factory sound deadener, not sure if it would work for asphalt but probably would be enough to get a knife between the deadener and metal and hopefully break it off in chunks.
  17. funknut

    from column to floor shifter?

    IDK what year car you have but in my 68 the reverse switch is on the column. In 69 they moved it to the trans. Not sure if you can get a reverse signal from your shifter. When the PO of my car switched to floor shift there was no signal for reverse lights. One day I’ll update the trans to the...
  18. funknut

    Light weight sound/heat underlay

    The Dynamat stuff is pretty heavy, if you get the 36 sq ft box it's probably 30 lbs. The Noico stuff will help a lot with heat, just make sure you cover your surfaces as much as you can. Not as helpful for sound, but it's better than nothing. It is self-stick and pretty easy to work with. I...
  19. funknut

    Light weight sound/heat underlay

    Sound deadening will need to have some mass to it to do the job of preventing the 'drum' effect you get with large metal panels. The butyl products like FatMat/Dynamat do this well. You don't need 100% coverage. Most heat insulations trap air to do its job, so a closed cell foam works well...
  20. funknut

    Floor pan wire tab question

    In my case I ordered the full floor, it also included the parking cable bracket.
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