[DeTomaso] Dynamat Xtreme results - electric motor whine

[Rob Dumoulin]

Danger, Will. It also acts as an insulator and will trap heat.

On Monday, July 22, 2013, Will Kooiman wrote:

> Is this the best stuff to muffle electric motor whine?
>
> I'm trying to quiet down aquarium pumps.
>
> --
> Will
>
>
>
>
>
> On 7/21/13 9:31 PM, "Ken Green" <kenn_green at yahoo.com <javascript:;>>
> wrote:
>
> >Amazon has a good price on this stuff, and orders over $25 ship free:
> >
> >Dynamat 10455 18" x 32" x 0.067" Thick Self-Adhesive Sound Deadener with
> >Xtreme Bulk Pack, (Set of 9)
> >
> >$139 shipped.
> >
> >Ken
> >
> >
> >________________________________
> >From: Larry Finch <fresnofinches at aol.com <javascript:;>>
> >To: detomaso at poca.com <javascript:;>
> >Sent: Sunday, July 21, 2013 2:51 PM
> >Subject: [DeTomaso] Dynamat Xtreme results
> >
> >
> >All,
> >
> >As you may recall I learned a hard lesson as to what happens when you
> >fail to fully tighten a heater hose
> >connection after doing an evaporator upgrade.
> >
> >I have just finished the installation of Dynamat on 2511. Curious as to
> >just how much it would
> >require to cover the interior and what the added weight would be, I made
> >detailed before and after records of
> >the weight of the Dynamat I used.
> >
> >I used Dynamat Xtreme in the bulk packs of 9 sheets, each 18" x 32". Each
> >sheet is four square feet,
> >and the pack of nine sheets is about $150 a box on eBay. I bought two
> >boxes, 18 sheets total.
> >
> >I exhibited my typical over-thinking and over-executed technique and
> >first made poster-board patterns
> >for all the various panel shapes. This allowed me to optimize waste
> >reduction by trial-and-error placing
> >of the patterns on each sheet prior to actual cutting. I also installed
> >all the pieces without overlap, instead placing them edge-to-edge.
> >I covered ALL the interior: rear firewall and hatch, full floor, interior
> >rockers, wheel houses, all sides of the center tunnel,
> >front bulkhead and bottom portions of the cowl.
> >
> >(Yes, I know Dynamat results are pretty good when just covering most of a
> >panel instead of a full edge-to-edge covering,
> >but its kind of like 'clocking' the nine screws on the LeCarra steering
> >wheel. Not necessary, but just something I do.)
> >
> >After this one-layer install, I had just three full sheets and a lot of
> >scrap remaining. By weight, I've calculated I used
> >roughly 45 square feet and added about 16.5 pounds of material for that
> >one-layer install.
> >
> >I then added a second layer to the rear firewall and all sides (F to R)
> >of the center tunnel. (I did not add a second layer to the hatch as I
> >have had it CermaKromed at CAPS here in Fresno.)  This took about 15
> >square feet and added another 5.5 pounds. For most of the second layer, I
> >was forced to piece smaller scraps together in forming the larger
> >patterns.
> >
> >In summary, I added only about 22 pounds of weight, covered the full
> >interior with one layer and covered the
> >main heat-transferring panels with two layers, and spent about $300. Time
> >spent? Patterns and installation must
> >have been about 40-60 hours.
> >
> >(Think that is excessive? Don't ask how many hours I spent figuring out
> >how to adapt and cut a set of Muth signal mirrors to
> >fit into the two Colt electric mirrors on 2511.)
> >
> >I found the Dynamat very easy to work with. Cuts easily with good
> >scissors or box knife; a good-sized scrap of plywood serves well for the
> >long box-knife cuts. Foil covering is VERY durable, flexible and easily
> >formed to reasonable compound curves. When carefully handled, it can be
> >repositioned before final press-down installation. I used a 2" rubber
> >roller for the large surfaces, and the smooth metal handle of an old
> >butter knife to burnish the inside and outside corners, nooks and
> >crannies.
> >
> >Next up is the aluminized adhesive-backed radiant heat barrier (COOL IT
> >by ThermoTec) on the firewall, hatch and center tunnel.
> >
> >Now if I can just get the A/C reliably working......
> >
> >Larry
> >
> >
> >
> >
> >
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