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Tim in Phoenix
Joined: 21 Oct 2006
Posts: 4409
Location: Phoenix
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| Posted: Sun Apr 15, 2012 3:47 pm Post subject: |
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| mycatisretarded wrote: | | pic |
That thing looks like a used condom!
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jbmeyer13
Joined: 03 Dec 2010
Posts: 1135
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| Posted: Mon Apr 16, 2012 2:14 pm Post subject: |
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How ironic...a Greek guy makes bellows that look like Trojans
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Projector: Modded 9501LC ULtra- MP VIM, Vold VNB, ETECH LVPS, Silver VIM Cables, HD10F's & a V1 case!
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Nashou66
Joined: 12 Jan 2007
Posts: 16171
Location: West Seneca NY
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| Posted: Mon Apr 16, 2012 3:30 pm Post subject: |
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| jbmeyer13 wrote: | | How ironic...a Greek guy makes bellows that look like Trojans |
Real funny guys!!
Got this back from Dale
Tom,
With no description of the "issue" with the bellow material, I'm going to take a guess based on the Cargille data sheet you provided.
Our in house Materials/Chemist guru says the Alicyclic Hydrocarbon composition of this fluid may be attacking the rubber causing it to dissolve. Ethylene-Propylene materials are typically not compatible with petroleum based products and liquids. The hydrocarbon composition is petroleum based. This is different from the ethylene glycol heat transfer fluid we referenced to select the ethylene-propylene elastomer material spec'd out.
It is very likely that the original OEM bellows we reverse engineered would behave the same way. We scanned the original material and we matched the closest compound we have.
If the "issue" is something different, give me some feedback and I will try to help. Otherwise, don't use the cargille fluid and suggest what most of the other people are using.
So For future reference do NOT use this Cargill stuff!!!
Now I wonder what that stuff will do to Circuit boards?
Athanasios
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Don't blame your underwear for your crooked ass~ unknown Greek philosopher
"Republicans believe every day is the Fourth of July, but the Democrats believe every day is April 15." --- President Reagan
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Marquee Modifications and Performance Enhancement
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draganm
Joined: 08 Mar 2006
Posts: 8990
Location: Colorado
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| Posted: Mon Apr 16, 2012 3:54 pm Post subject: |
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hey Nash, I just checked and Sulfuric Acid has an AWESOME refractive index. Will you warranty your bellows if I pour that in? 
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Nashou66
Joined: 12 Jan 2007
Posts: 16171
Location: West Seneca NY
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Tom.W
Joined: 09 Mar 2006
Posts: 6635
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| Posted: Mon Apr 16, 2012 4:32 pm Post subject: |
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I still fail to understand why people do not just use what the original designers intended. Glycol with perhaps some glycerin....
If fungus is an issue I would try adding a few drops of fungicide.
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ecrabb
Forum Moderator
Joined: 13 Mar 2006
Posts: 15909
Location: Utah
TV/Projector: JVC RS40, Epson 5010
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| Posted: Mon Apr 16, 2012 4:48 pm Post subject: |
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I didn't think the "fungus" that we talk about was really fungus, but kind of a misnomer for the result of a reaction with the exposed aluminum in the mounts over time. Is there actual fungus in LC chambers?
SC
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Spanky Ham
Joined: 22 Mar 2006
Posts: 5643
Location: Comedy Central
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| Posted: Mon Apr 16, 2012 5:13 pm Post subject: |
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| Tom.W wrote: | I still fail to understand why people do not just use what the original designers intended. Glycol with perhaps some glycerin....
If fungus is an issue I would try adding a few drops of fungicide. |
Some want to try to experiment to see if there is something better. Nothing wrong with that. For those that want to stick with the tried and true, the formula is well known.
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Tom.W
Joined: 09 Mar 2006
Posts: 6635
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| Posted: Mon Apr 16, 2012 5:18 pm Post subject: |
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I was addressing the recommended fluid to be used in the new replacement bellows 
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Phoenixed
Joined: 13 Oct 2011
Posts: 514
Location: The mitten
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| Posted: Mon Apr 16, 2012 6:35 pm Post subject: |
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| draganm wrote: | | hey Nash, I just checked and Sulfuric Acid has an AWESOME refractive index. Will you warranty your bellows if I pour that in? |
Shoot!! And here I was using leaded racing fuel.
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Planar PD-8150/Runco LS-5
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HaydnG90
Joined: 22 May 2006
Posts: 1356
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| Posted: Mon Apr 16, 2012 8:43 pm Post subject: |
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| Phoenixed wrote: | | draganm wrote: | | hey Nash, I just checked and Sulfuric Acid has an AWESOME refractive index. Will you warranty your bellows if I pour that in? |
Shoot!! And here I was using leaded racing fuel. |
Too protect you against that pesky radiation?
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draganm
Joined: 08 Mar 2006
Posts: 8990
Location: Colorado
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| Posted: Mon Apr 16, 2012 9:08 pm Post subject: |
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| ecrabb wrote: | | Is there actual fungus in LC chambers?SC |
No, it's simply Aluminum, which is a metal, turning back into Aluminum Oxide, which is a powdery/ chalky material.
http://en.wikipedia.org/wiki/Aluminium_oxide
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ecrabb
Forum Moderator
Joined: 13 Mar 2006
Posts: 15909
Location: Utah
TV/Projector: JVC RS40, Epson 5010
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| Posted: Mon Apr 16, 2012 9:56 pm Post subject: |
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| draganm wrote: | | No, it's simply Aluminum, which is a metal, turning back into Aluminum Oxide, which is a powdery/ chalky material. |
Which then dissolves in the coolant, makes it cloudy, and also deposits on the c-element and tube face.
That's what I thought... Tom just threw me off with his "fungicide" remark.
SC
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Nashou66
Joined: 12 Jan 2007
Posts: 16171
Location: West Seneca NY
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| Posted: Mon Apr 16, 2012 11:15 pm Post subject: |
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| ecrabb wrote: | | draganm wrote: | | No, it's simply Aluminum, which is a metal, turning back into Aluminum Oxide, which is a powdery/ chalky material. |
Which then dissolves in the coolant, makes it cloudy, and also deposits on the c-element and tube face.
That's what I thought... Tom just threw me off with his "fungicide" remark.
SC |
I have seen both, the oxidation and true Fungus. the fungus will grow on the glass tube face and on the C-Elements.
And man does that crap stick tot he glass!! had to use a scotch bright to get it off.
Athanansios
_________________
Don't blame your underwear for your crooked ass~ unknown Greek philosopher
"Republicans believe every day is the Fourth of July, but the Democrats believe every day is April 15." --- President Reagan
One Smart Dog!!!
Marquee High Performance Bellows now shipping!!
Marquee Modifications and Performance Enhancement
Marquee C-element and Bellow removal
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ecrabb
Forum Moderator
Joined: 13 Mar 2006
Posts: 15909
Location: Utah
TV/Projector: JVC RS40, Epson 5010
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| Posted: Mon Apr 16, 2012 11:31 pm Post subject: |
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| Nashou66 wrote: | I have seen both, the oxidation and true Fungus. the fungus will grow on the glass tube face and on the C-Elements.
And man does that crap stick tot he glass!! had to use a scotch bright to get it off. |
How do you know it's actually fungal growth, Athanasios? Please note - I'm not questioning or contradicting you, but rather wondering how it even happens.
I haven't taken any biology since college, so I'm probably almost as ignorant as they come on the subject, but I'm just wondering how the tubes remain essentially clear for say, 6-8 years, then somehow fungal spores start reproducing and grow in the glycol. Again, not suggesting it can't happen; rather just wondering if anybody knows how it does.
SC
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Nashou66
Joined: 12 Jan 2007
Posts: 16171
Location: West Seneca NY
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| Posted: Tue Apr 17, 2012 1:33 am Post subject: |
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| ecrabb wrote: | | Nashou66 wrote: | I have seen both, the oxidation and true Fungus. the fungus will grow on the glass tube face and on the C-Elements.
And man does that crap stick tot he glass!! had to use a scotch bright to get it off. |
How do you know it's actually fungal growth, Athanasios? Please note - I'm not questioning or contradicting you, but rather wondering how it even happens.
I haven't taken any biology since college, so I'm probably almost as ignorant as they come on the subject, but I'm just wondering how the tubes remain essentially clear for say, 6-8 years, then somehow fungal spores start reproducing and grow in the glycol. Again, not suggesting it can't happen; rather just wondering if anybody knows how it does.
SC |
Well in the Marquee if you ever had to change the glycol for any reason the fill hole area might be a place for
it to enter. it might be on the outside of the chamber and if not cleaned thoroughly any bacteria etc might contaminate
the new glycol as its being passed through the fill hole. This is just a theory.
I'm about 95% sure what i saw on the one tube I changed out at Greg's place here in western NY was Fungus.
It was growing on the glass and not on the Anodized aluminum. Also it was different in color to the oxidized
aluminum which also formed a crystalline structure . The stuff on the glass was slimy to the touch, almost like the feel
of algae on rocks in a creek.
Athanansios
_________________
Don't blame your underwear for your crooked ass~ unknown Greek philosopher
"Republicans believe every day is the Fourth of July, but the Democrats believe every day is April 15." --- President Reagan
One Smart Dog!!!
Marquee High Performance Bellows now shipping!!
Marquee Modifications and Performance Enhancement
Marquee C-element and Bellow removal
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PiDD
Joined: 03 Dec 2006
Posts: 87
Location: Winnipeg, Manitoba
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| Posted: Tue Apr 17, 2012 10:28 pm Post subject: |
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I had a bad case of crystals forming in the chamber... hell in white scenes like watching hockey! These blue blobs would move across the screen! Looking in the lens they kinda look pretty.
 [/img]
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mc86
Joined: 20 Sep 2008
Posts: 767
Location: pittsburgh, pa
TV/Projector: ECP 4500 (Vidikron box), ECP4500+, wanting 07MS/07MTS, evaluating pc soft-blend
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| Posted: Sat Jul 07, 2012 10:19 pm Post subject: |
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Somehow I missed most of this thread back in April. Can some one send me some of these crystals next time they swap-out fluid? Same, too, for scrapings of the "fungus" slime. Include some of the fluid in both cases, too, if convenient. Just PM and send to:
Matt Cline
Chem Eng DH B211
5000 Forbes Ave.
Pittsburgh, PA 15213
Thanks,
Matt
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