I'm restoring an old wire recorder now and see minor white-ish film on some
of the plastic parts. Curiously the Bakelite items look like brand new.
Alcohol easily removes the film.
There are lots of internet posts about older Xcelite plastic tool handles
developing a white film and smelling like vomit. I have two, identical
PS-120 nut driver sets bought at the same time in the 70's. One set I use
all the time. The other was squirrelled away, forgotten, in a box. The
often used one is fine. When I recently re-discovered the forgotten one I
about vomited when the case was opened. Every plastic surface, except for
the case itself, was covered in the powdery, white, foul-smelling stuff.
Alcohol easily removed the film and pretty much the smell too. The
frequently used set has no signs or smells of the white stuff.
On Friday, October 25, 2024 at 12:15:19 PM UTC-5 Terry S wrote:
> There is also a rather strange fungus that likes to grow on certain
> plastics. Ask anyone who has ever collected old radios..
> It wipes right off and take a long time to return.
>
> On Friday, October 25, 2024 at 12:50:13 PM UTC-4 Neil QQ wrote:
>
>> Terry, I believe you are correct about the plasticizer, or some such
>> outgassing. At my work we ran into something similar with a big
>> last-time-buy order for connectors. They looked exactly like your
>> pictures. As I recall, the key to "prevention" is to allow for air
>> circulation when stored, i.e. not stored in plastic bags. The stuff was
>> declared "not deleterious to the functional aspects of the connector".
>> They were cleaned with alcohol (don't recall which type/concentration) and
>> placed back into stock.
>>
>> On Thursday, October 24, 2024 at 3:54:55 PM UTC-5 Nicholas Stock wrote:
>>
>> As they're in a sealed container, any outgassing from components/PCB etc
>> may react with plastics? Just a guess....
>>
>> On Thu, Oct 24, 2024 at 1:43 PM Mac Doktor <[email protected]> wrote:
>>
>>
>> On Oct 24, 2024, at 4:40 PM, Dekatron42 <[email protected]> wrote:
>>
>> None of the capacitors seems to have leaked nor does any other component
>> seem to be affected and nothing else looks corroded but there are some
>> small droplets on one of the power connectors.
>>
>>
>> Looks like elasticizer leaching out of the plastic but I've never seen it
>> happen to something this new.
>>
>>
>> Terry Bowman, KA4HJH
>> "The Mac Doctor"
>>
>> https://www.astarcloseup.com
>>
>> "If only you could see what I've seen with your eyes."—Roy Batty, *Blade
>> Runner*
>>
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