[Vwdiesel] (no subject)
LBaird119 at aol.com
LBaird119 at aol.com
Thu Jun 3 13:07:14 PDT 2010
Most people tend to slather Dynamat around like a traditional
insulation, which will work, but as I understand it, the original
intent is to put a piece here and there, to break up the harmonic
vibrations, to stop sound transmission. It's a high density product
that really doesn't seem it would work well to "muffle" sound.
By changing the vibration characteristic of the metal, vibration
transmission should REALLY drop since it'll hit a padde area, and
the wave can't travel anymore. Just like SS kitchen sinks. On
some of them anyway, they went from an overall coating to a 3x3
pad of dense material. Thump one of those sinks and they sound
as dead as the coated ones.
On my 914 I pulled the door panels and put a layer of about 3/8
carpet padding behind it and put it back on. Geez! Shut the doors
and it had that new car sound to it! :-D There's now a closed cell,
polyester I believe, padding that would be perfect for cars. It won't
soak up water, cuts well, is fairly dense but not heavy and shouldn't
deteriorate from moisture, heat or sunlight, like most padding does.
I kept an end of a roll just for doing my daughter's truck.
Loren
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