[DeTomaso] Dynamat Xtreme results - electric motor whine

[Will Kooiman]

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> 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>
>To: detomaso at poca.com
>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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