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Old 06-20-2010, 02:41 PM   #1
tobrew
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Default o-ring lube

Need to find some lube for my o-ring. My LHBS isn't open. Is ther some other type of food grade lube I can use?
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Old 06-20-2010, 02:43 PM   #2
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Do Lowes or Home Depot sell some sort of silicone lube?

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Old 06-20-2010, 02:48 PM   #3
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Vaseline will work. Little dab will do ya.

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Old 06-20-2010, 02:58 PM   #4
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Originally Posted by winstonofbeer View Post
Vaseline will work. Little dab will do ya.
Vaseline will create a seal, but over time it will degrade the o-ring. You should be able to find food grade silicone grease at a hardware store.
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Old 06-20-2010, 03:48 PM   #5
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Vaseline will work. Little dab will do ya.
I would never let any petroleum based product near my beer.
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Old 12-11-2011, 12:30 AM   #6
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Ed, I've read a lot about this recently. BierMuncher uses mineral oil. Petrol Gel sold by many online HB retailers is petroleum based. Will it really eat your o-rings?

Also, I've not been able to find any info on the contents of the product labeled "keg lube." Is it silicone?

What do you use?

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Old 12-11-2011, 02:34 AM   #7
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Keg Lube and similar "silicone" greases are typically comprised of amorphous fumed silica combined with a thickening/suspension agent like Polydimethylsiloxane and/or Dimethyl Siloxane, in a ratio of around 1:7.

Decidedly not "petroleum gel" - or even petroleum-based...

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Old 12-11-2011, 03:00 AM   #8
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Keg Lube and similar "silicone" greases are typically comprised of amorphous fumed silica combined with a thickening/suspension agent like Polydimethylsiloxane and/or Dimethyl Siloxane, in a ratio of around 1:7.

Decidedly not "petroleum gel" - or even petroleum-based...

Cheers!
Always depending on where you get the dimethylsiloxane from, I suppose.
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Old 12-11-2011, 03:42 AM   #9
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Always depending on where you get the dimethylsiloxane from, I suppose.
It doesn't come from an oil well...
Polydimethylsiloxane - Wikipedia, the free encyclopedia

Cheers!
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Old 12-11-2011, 03:48 PM   #10
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It doesn't come from an oil well...
Polydimethylsiloxane - Wikipedia, the free encyclopedia

Cheers!
So where does polydimethylsiloxane come from? Specifically, where does the dimethyl come from?
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