[DeTomaso] Sound Deadener [WAS: The Answer: #93 from the Icky Old Man Institute of Research]

[Garth Rodericks]

FWIW...

Dynamat Xtreme:

Lightweight elastomeric butyl based core

Can withstand temperature extremes between -65°F and +300°F 
(-54°C to +149°C)
Fire Classification: Flammable, but meets FMVSS 302*
No MSDS, merely a technical spec document with marketing information the manufacturer/vendor wishes to share. Unfortunately I could not find a published MSDS for Dynamat Xtreme or Dynamat


Dynamat (original):
Styrene-Butyadine-Rubber based core
Can withstand temperature extremes between -22F to +350F (-30C to +177C)
Fire Classification: Flammable, but meets FMVSS 302*

Peel & Seal:
Styrene-Butyadiene-Styrene block copolymer (10-20%) and Asphalt (40-60%) - Arguably the exact same compound as used in Dynamat, unfortunately I could not find a published MSDS for Dynamat.

Fire Classification: Has not been certified against FMVSS302; MSDS states "There is no potential for fire or explosion."

MSDS: http://solutions.mfmbp.com/MFM%20MSDS%20PEEL%20AND%20SEAL.pdf
Note that I will conduct my own flammability test before installing in my car this weekend. 


Anyone have a scrap of Dynamat I can set fire to for comparison sake?

There are also other alternatives to Dynamat too, some marketed as 'automotive sound deadeners' and others as industrial sound deadener/insulation products such as those available from McMaster Carr or Grainger.



* FMVSS 302 was adopted in 1971 and became effective for vehicle model 1972. 

  - This standard set a flame spread rate not to exceed 102 mm/m. This was deemed adequate for the occupant to stop the vehicle and exit without serious harm. 

  - FMVSS 302 is applicable to interior components including seating, door panels, headliner, carpet, seat belts, air bags, package shelves, instrument panels, steering wheel covers and padding, etc. (note – this is not everything – just some examples)
  - More details: http://www.a2la.org/conclaves/conclave2009/minutes/Materials%20Testing%20Advisory%20Committee%20Summary%20-%20Attachment%201.pdf



________________________________
From: Julian Kift <julian_kift at hotmail.com>
To: garth_rodericks at yahoo.com; De Tomaso List <detomaso at realbig.com>; adin at frontier.net
Sent: Thursday, June 23, 2011 1:03 PM
Subject: RE: [DeTomaso] Sound Deadener [WAS: The Answer: #93 from the Icky Old Man Institute of Research]


 
The Peel N Seal is a roofing product and asphalt based, whereas Dynamat is a Butyl based product, so they are not the same.
 
The asphalt products don't stick as well, smell of asphalt in the heat and being asphalt based are flammable, you get what you pay for.....
 
Julian
 

> Date: Thu, 23 Jun 2011 12:39:06 -0700
> From: garth_rodericks at yahoo.com
> To: detomaso at realbig.com; adin at frontier.net
> Subject: Re: [DeTomaso] Sound Deadener [WAS: The Answer: #93 from the Icky Old Man Institute of Research]
> 
> Looks like it's also available in a 36" x 33-1/2' roll too, but I haven't seen this product person to verify it has the same asphalt-based compound.
> 
> http://www.lowes.com/pd_154032-81326-PS36_0__?productId=3090099&Ntt=peel+%26+seal&pl=1¤tURL=%2Fpl__0__s%3FNtt%3Dpeel%2B%2526%2Bseal&facetInfo=
> 
> Cheers!
> Garth
> 
> 
> 
> ________________________________
> From: Garth Rodericks <garth_rodericks at yahoo.com>
> To: DeTomaso Mail List <detomaso at realbig.com>; "adin at frontier.net" <adin at frontier.net>
> Sent: Thursday, June 23, 2011 12:24 PM
> Subject: Sound Deadener [WAS: The Answer: #93 from the Icky Old Man Institute of Research]
> 
> 
> David,
> 
> Nice post. I like the videos. Is that your GT40 in the Fernley video? Looks and sounds beautiful!
> 
> Anyway, I was researching less expensive alternatives to Dynamat and came across a recommendation for "Peel & Seal" gutter patch and flashing, available from Lowe's for $15 a 25' rool (6" wide). 
> 
> http://www.ratrodsrule.com/forum/showthread.php?t=3226
> 
> 
> Supposedly the same stuff as 'original' Dynamat. I'm putting this on the firewall and hatch cover in my Pantera.
> http://www.lowes.com/pd_154017-81326-PS625_4294934213_4294937087_?productId=1018733&Ns=p_product_prd_lis_ord_nbr
> 
> Cheers!
> Garth
> #4033
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