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Author Topic: Interior Rolled Body Underlayment  (Read 1234 times)

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Offline C. M. Wolf

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Interior Rolled Body Underlayment
« on: May 11, 2017, 08:03:56 PM »
I'm going to have to totally rework the interior of this Pinto Wagon. I need new roll-out underlayment that sicks to the panels(Adhesive 1 side). The neoprene-covered both sides is preferred, 1/2" or thicker. And should I use a different type of material for the headliner underlayment?

The real question is: Where's the best, cheapest place to order this underlayment? I prefer as long a roll as possible & 5 ft wide if it can be had.

I'll add polystyrene foam panels to many of the side/vert areas after the neoprene layer has been placed,(for sound-deadening & thermal insulation quality)

Many Thanks in advance,
Michael

Offline robertwwithee

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Re: Interior Rolled Body Underlayment
« Reply #1 on: May 11, 2017, 08:41:12 PM »
Home depot tar based aluminized foil.  Cheap and works great. Similar to dynamite but way cheaper

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Offline C. M. Wolf

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Re: Interior Rolled Body Underlayment
« Reply #2 on: May 11, 2017, 09:14:55 PM »
I humbly thank you for your reply. I was hoping to keep the weight factor as low as possible also. I've worked with that Tar based underlayment in homes & it can be a bit heavier than I prefer in an auto.

If I'd chosen to put a small-block V8 into the Pinto, weight might be such an issue, but it's only a lil 2.9 L V6 I'm building up. A V8 might get 400+ horse power out of, but I'll be doing good to get half that in a V6.

Michael

Offline robertwwithee

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Re: Interior Rolled Body Underlayment
« Reply #3 on: May 12, 2017, 10:06:19 AM »
Dynamat

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Offline Wittsend

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Re: Interior Rolled Body Underlayment
« Reply #4 on: May 12, 2017, 11:40:25 AM »
While I understand not wanting to add weight to the car you do get the benefit of the sound deadening. And most acoustical absorbing materials are going to add weight. But, how much weight would they add?  50-100 pounds?  If the weight was that much of a concern then you should never have any passengers. The average American probably weights 150-200 pounds. Thus 1-3 passengers you could be adding anywhere from 150 pounds upwards to 600 pounds.   And the sound deadener is a whole lot quieter that a bunch of chatty friends!

Offline pinto_one

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Re: Interior Rolled Body Underlayment
« Reply #5 on: May 14, 2017, 06:17:10 PM »
You will be surprised how quit it is when you take the time and put the sound deadner in it , I clean up the floors and used a good two part primer paint first followed with some two part truck bed liner , then got a few rolls of 1/4 insulation from JC Whitney  has the thin silver coating on both sides , then new carpet, but make sure you do not have any windshield gasket leaks or it will ruin what you done, also check the Cowl for leaks also ,on my doors I just used two thick coats of 3M spray undercoating inside , road noise on the Hwy is much better now , huge improvement for the good ,
 
76 Pinto sedan V6 , 79 pinto cruiser wagon V6 soon to be diesel or 4.0