CRT rear projection TV's. Liquid used? - UK Vintage Radio Repair and Restoration Discussion Forum

toshiba tony · 22nd May 2023, 2:56 pm

What was the liquid used in the colour sets in the 90's Was inside the crt assembly. I seem to remember whenever they leaked they quickly rotted the boards underneath, writing off the set. We did the Samsung and LG and later the Toshiba ranges, in fact I became a whizz kid (firms idea) on them, but I can't think what the liquid was called. Ta anyone, Tony Walker

bobbyball · 22nd May 2023, 3:06 pm

Wasn't it some sort of glycerol?

Maarten · 22nd May 2023, 7:27 pm

I'm pretty sure it was indeed some kind of glycerine or glycerol. Different television brands might have used slightly different formulations that may have had different trade names.

German Dalek · 24th May 2023, 6:15 am

Hi,
A passed friend who had a TV shop in the 70s, 80s & 90s told me, that this fluid is very dangerous.
Handling requires safety actions!
When he ordered this fluid, it was brought by a special service company.

Regards,
German Dalek

PaulM · 24th May 2023, 8:40 am

It's glycol. Essentially, it's antifreeze.
Horrible stuff, but no more dangerous than many things.
Done battle with it many times . . .

Some more information here: http://www.curtpalme.com/Bleeding_CRT_Tubes2.shtm

Once had some brand new Sony tubes go 'bang' in a big way in front of our customer (Japanese military). Had some fun pointing out the 'Sony' logo to them . . .
Lots of talk in Japanese, so I had no idea what they were saying!

Best regards,

Paul M

toshiba tony · 24th May 2023, 12:02 pm

Yes, I seem to remember having to be careful with it, disposing of the tubes was done by a company, but there was quite a lot of them. Few went low emission, the problems were inter-electrode shorts or cracked glass due to EHT flashover, happy days.

22nd May 2023, 2:56 pm	#1
toshiba tony Heptode Join Date: May 2006 Location: Accrington, Lancashire, UK. Posts: 978	CRT rear projection TV's. Liquid used? What was the liquid used in the colour sets in the 90's Was inside the crt assembly. I seem to remember whenever they leaked they quickly rotted the boards underneath, writing off the set. We did the Samsung and LG and later the Toshiba ranges, in fact I became a whizz kid (firms idea) on them, but I can't think what the liquid was called. Ta anyone, Tony Walker

22nd May 2023, 3:06 pm	#2
bobbyball Octode Join Date: Jul 2011 Location: Stockport, Greater Manchester Posts: 1,214	Re: CRT rear projection tv's Wasn't it some sort of glycerol? __________________ Robert

22nd May 2023, 7:27 pm	#3
Maarten Dekatron Join Date: Dec 2007 Location: Haarlem, Netherlands Posts: 4,199	Re: CRT rear projection tv's I'm pretty sure it was indeed some kind of glycerine or glycerol. Different television brands might have used slightly different formulations that may have had different trade names.

24th May 2023, 6:15 am	#4
German Dalek Hexode Join Date: Jan 2011 Location: Düsseldorf, Germany. Posts: 368	Re: CRT rear projection TV's Hi, A passed friend who had a TV shop in the 70s, 80s & 90s told me, that this fluid is very dangerous. Handling requires safety actions! When he ordered this fluid, it was brought by a special service company. Regards, German Dalek __________________ And now something completly different: MARC BOLAN, he was/is the real king of Pop Music!

24th May 2023, 8:40 am	#5
PaulM Hexode Join Date: Nov 2006 Location: Near Lincoln, UK. Posts: 483	Re: CRT rear projection TV's It's glycol. Essentially, it's antifreeze. Horrible stuff, but no more dangerous than many things. Done battle with it many times . . . Some more information here: http://www.curtpalme.com/Bleeding_CRT_Tubes2.shtm Once had some brand new Sony tubes go 'bang' in a big way in front of our customer (Japanese military). Had some fun pointing out the 'Sony' logo to them . . . Lots of talk in Japanese, so I had no idea what they were saying! Best regards, Paul M

24th May 2023, 12:02 pm	#6
toshiba tony Heptode Join Date: May 2006 Location: Accrington, Lancashire, UK. Posts: 978	Re: CRT rear projection TV's Yes, I seem to remember having to be careful with it, disposing of the tubes was done by a company, but there was quite a lot of them. Few went low emission, the problems were inter-electrode shorts or cracked glass due to EHT flashover, happy days.