Halli Asbestos Problem
 

Hello all,
I was recapping my S-106 earlier today and discovered the insides of the
original bottom cover has an exposed layer of asbestos! Since it is solid and
not crumbling except alittle near the edges, I took it outside and sprayed it
with a clear lacquer to seal it. How have others dealt with this?
I was also wondering about the need for the asbestos in the first place. I
don't think the bottom components get very hot, but halli engineers wouldn't
have spent the money if it wasn't needed. Maybe this radio was designed to be
on for long periods of time. Any thoughts?
73 Mike KF6KXG

"TchrMe" wrote in message
...
Hello all,
I was recapping my S-106 earlier today and discovered the insides of the
original bottom cover has an exposed layer of asbestos! Since it is solid
and
not crumbling except alittle near the edges, I took it outside and sprayed
it
with a clear lacquer to seal it. How have others dealt with this?
I was also wondering about the need for the asbestos in the first
place. I
don't think the bottom components get very hot, but halli engineers
wouldn't
have spent the money if it wasn't needed. Maybe this radio was designed to
be
on for long periods of time. Any thoughts?
73 Mike KF6KXG

How did you manage an eyeball chemical analysis?

Ed
wb6wsn

TchrMe wrote:
Hello all,
I was recapping my S-106 earlier today and discovered the insides of the
original bottom cover has an exposed layer of asbestos! Since it is solid and
not crumbling except alittle near the edges, I took it outside and sprayed it
with a clear lacquer to seal it. How have others dealt with this?
I was also wondering about the need for the asbestos in the first place. I
don't think the bottom components get very hot, but halli engineers wouldn't
have spent the money if it wasn't needed. Maybe this radio was designed to be
on for long periods of time. Any thoughts?
73 Mike KF6KXG

Seems like the consumer radio industry went on a bent in that era to
minimize 'hot spots', or even warm spots on the cabinet. One finds such
a pad in many radios and it usefulness is dubious. My suspicion is that
it was just another frill...maybe promulgated by public concern at the
time??
Since its on the bottom, maybe its intention was to serve as an
insulator should any of the guts fall out of place and short out to the
cabinet...a pretty unlikely scenario. Or maybe they figured the user
might be stacking the radio on top of another and it served as a heat
insulator...seems a bit more logical.
You've done ok with it. Others use more exotic sealants but your fix
should suffice.

-Bill

Mike,
spraying a sealer would not be my first choice, chances of get particle
airborne
increase by spraying, brushing on a sealer should work to hold the fibers
together.
alot of what EPA is recommending is coat it, mark it so no one disturbs it
and leave
it in place. you might close the curtains just in case on of them is peeking
in the window!

73
tt
ka9yzs

Thanks Bill and Ed for responding. Ed, it is a white fibrous compressed
material. Now, true it could be other things but my educated guess is asbestos.
What else would look like that and appear on top of a fiberboard bottom panel?
No matter, I assumed the worse case and sealed it. If it is anything else,
better safe than sorry. Oh by the way, the radio is recapped and working
well.73, Mike KF6KXG

Terry Thorne wrote:
Mike,
spraying a sealer would not be my first choice, chances of get particle
airborne
increase by spraying, brushing on a sealer should work to hold the fibers
together.
alot of what EPA is recommending is coat it, mark it so no one disturbs it
and leave
it in place. you might close the curtains just in case on of them is peeking
in the window!

73
tt
ka9yzs


A bio suit and respirator while doing this work goes a long way too.
Asbestos has entered the lexicon with equal impact as the word
'****'...both carrying their consequences but neither implying imminent
demise.
-Bill

On Thu, 13 Nov 2003 00:48:10 -0400, - - Bill - - exray@coquidotnet
wrote:

Terry Thorne wrote:
Mike,
spraying a sealer would not be my first choice, chances of get particle
airborne
increase by spraying, brushing on a sealer should work to hold the fibers
together.
alot of what EPA is recommending is coat it, mark it so no one disturbs it
and leave
it in place. you might close the curtains just in case on of them is peeking
in the window!

73
tt
ka9yzs


A bio suit and respirator while doing this work goes a long way too.
Asbestos has entered the lexicon with equal impact as the word
'****'...both carrying their consequences but neither implying imminent
demise.
-Bill

Me? I'd probably take it outside, put on a pair of latex gloves,
scrape it into a zip lock bag, and take it to the hazardous waste
disposal.

Roger (K8RI)
Roger Halstead (K8RI EN73 & ARRL Life Member)
www.rogerhalstead.com
N833R World's oldest Debonair? (S# CD-2)

Roger Halstead wrote:

Me? I'd probably take it outside, put on a pair of latex gloves,
scrape it into a zip lock bag, and take it to the hazardous waste
disposal.

Good Man, Roger. Tell us how the glove part makes it safer?

-ex\

- - Bill - - wrote:
Roger Halstead wrote:

Me? I'd probably take it outside, put on a pair of latex gloves,
scrape it into a zip lock bag, and take it to the hazardous waste
disposal.


Good Man, Roger. Tell us how the glove part makes it safer?

-ex\


Forget the question. It took me a minute to realize you're just
chain-yanking.
Good one, Rog.

-ex

"TchrMe" wrote in message
...
Thanks Bill and Ed for responding. Ed, it is a white fibrous compressed
material. Now, true it could be other things but my educated guess is
asbestos.
What else would look like that and appear on top of a fiberboard bottom
panel?
No matter, I assumed the worse case and sealed it. If it is anything else,
better safe than sorry. Oh by the way, the radio is recapped and working
well.73, Mike KF6KXG


Well, that does sound suspicious. I have seen many early auto radios use a
sheet of amber film on the inside of the cover plates, but this is clearly
plastic. Some tube consumer radios had insulation sheets made out of a
resinous fabric (cambric), but I never saw one of those degraded to look
white and to shed dust.

The only hazard with the asbestos is inhalation of the dust particles
(fibers), so bonding them in place is a good precaution. I don't think you
have anything to worry about.


Ed
WB6WSN