[GreenKeys] Foam

[Cory Heisterkamp]

Anyone hear from Dave Tumey lately? He had commissioned die cut foam for
the lower 32/33 oil pad a couple years ago. The couple pieces I ordered
looked great. Of course the OP may not need that, but a lot of this
original foam has turned to mush. -C

On Mon, Jul 29, 2019 at 7:43 AM Nick <creativegardening at hotmail.com> wrote:

> Vibration absorption and/or sound damping material, I used 1/2" yoga mats
> in the past with great results. Porous and heavy enough (just right) to be
> satisfied in any way. Easy to cut and work with, easy to clean and super
> light in weight. And the good part: they are dirt cheap $5-7 each on sale.
> All you need is a sharp utility knife and your choice of adhesive. In many
> cases, you even don't need adhesive - precious cuts and you can wedge the
> material in place.
>
> Try it, what do you have to loose.
>
> Nick  -  N0NCQ
>
> Sent from my T-Mobile 4G LTE Device
>
>
> -------- Original message --------
> From: Richard Knoppow <1oldlens1 at ix.netcom.com>
> Date: 7/29/19 2:52 AM (GMT-05:00)
> To: greenkeys at mailman.qth.net
> Subject: Re: [GreenKeys] Foam
>
>     Good question. Acoustical foam is a porous foam meant to
> absorb air conducted sound. Another sort of foam is used on
> mechanical parts, like the cases of typewriters, to damp
> vibration. This is not porous but rather heavy. Often has
> adhesive on it. The idea is that by damping the vibration of thin
> panels they can not act as sound radiators. Acoustical absorbent,
> either foam or fiberglass or old fashioned felted horse hair, is
> not a very good dampener. The damping foam looks something like
> really thick tar paper.
>
> On 7/28/2019 11:16 PM, Clay Archer wrote:
> > I think he is looking for acoustical foam to dampen the sound,
> > not the blotter foam pad under the TU.   I may be wrong….
>
>
> --
> Richard Knoppow
> 1oldlens1 at ix.netcom.com
> WB6KBL
> ___________________________
>
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