speaking of CFC: Freon TF substitute?

[HiramHackenbacker]

I remember this stuff back in the 1980s. It came in spray cans as contact
cleaner. One crew where I worked had 20-litre drums of it. We used to bath
circuit boards in it. It got rid of dust, oil, water, just about anything.
It could cure intermittent faults even. Technician in a can, some called
it.
But since it is unmerciful to the ozone layer, it was banned in most
nations.
(I have heard there is a thriving blackmarket trade for it though.)
Has anybody found something that works as good as the ole TF?

--
Posted at www.usenet.com.au

 

[Trevor Wilson]

"HiramHackenbacker"
<c2VtYW5Ab3B0dXNuZXQuY29tLmF1@REGISTERED_USER_usenet.com.au> wrote in
message news:iheki0$5ht$1@news.eternal-september.org...

I remember this stuff back in the 1980s. It came in spray cans as contact
cleaner. One crew where I worked had 20-litre drums of it. We used to bath
circuit boards in it. It got rid of dust, oil, water, just about anything.
It could cure intermittent faults even. Technician in a can, some called
it.
But since it is unmerciful to the ozone layer, it was banned in most
nations.
(I have heard there is a thriving blackmarket trade for it though.)
Has anybody found something that works as good as the ole TF?

**Nope. TF was brilliant stuff. I used to buy 5 Litre cans of the stuff.


--
Trevor Wilson
www.rageaudio.com.au

 

[Barry OGrady]

On Sat, 22 Jan 2011 13:02:56 +0000 (UTC),
c2VtYW5Ab3B0dXNuZXQuY29tLmF1@REGISTERED_USER_usenet.com.au
(HiramHackenbacker) wrote:

I remember this stuff back in the 1980s. It came in spray cans as contact
cleaner. One crew where I worked had 20-litre drums of it. We used to bath
circuit boards in it. It got rid of dust, oil, water, just about anything.
It could cure intermittent faults even. Technician in a can, some called
it.

I often got the job of cleaning the rack relays in a large crossbar
telephone exchange. Although a simple job it took a long time because
there was so many racks. For the job I was given cartons of Freeon TF
spray cans.

But since it is unmerciful to the ozone layer, it was banned in most
nations.

It was here and Telstra had a hard time finding a replacement.
They even used it in an ultrasonic bath to clean smoke damaged
relaysets.

(I have heard there is a thriving blackmarket trade for it though.)
Has anybody found something that works as good as the ole TF?

Someone who worked for Telstra might know.

>--

 

[keithr]

On 23/01/2011 12:02 AM, HiramHackenbacker wrote:

I remember this stuff back in the 1980s. It came in spray cans as contact
cleaner. One crew where I worked had 20-litre drums of it. We used to bath
circuit boards in it. It got rid of dust, oil, water, just about anything.
It could cure intermittent faults even. Technician in a can, some called
it.
But since it is unmerciful to the ozone layer, it was banned in most
nations.
(I have heard there is a thriving blackmarket trade for it though.)
Has anybody found something that works as good as the ole TF?

Weused to bathe ATM card readers in the stuff, it was the only thing

that effectively cleaned finger slime off the feed rollers.