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?
ToBrew

Do Lowes or Home Depot sell some sort of silicone lube?

Vaseline will work. Little dab will do ya.

winstonofbeer said:

Vaseline will work. Little dab will do ya.

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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.

winstonofbeer said:

Vaseline will work. Little dab will do ya.

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I would never let any petroleum based product near my beer.

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?

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!

day_trippr said:

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!

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Always depending on where you get the dimethylsiloxane from, I suppose.

dwarven_stout said:

Always depending on where you get the dimethylsiloxane from, I suppose.

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It doesn't come from an oil well...
Polydimethylsiloxane - Wikipedia, the free encyclopedia

Cheers!

day_trippr said:

It doesn't come from an oil well...
Polydimethylsiloxane - Wikipedia, the free encyclopedia

Cheers!

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

dwarven_stout said:

So where does polydimethylsiloxane come from?

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Already answered that. You either didn't bother to read the linked article, or you didn't understand it.

Specifically, where does the dimethyl come from?

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"Dimethyl" is not a stand-alone compound, so it doesn't "come from" anywhere. The term describes hydrocarbon structural components as part of a larger molecule - in this case, polydimethylsiloxane - that are typical conveyed via precursor catalyzed synthesis from syngas, which is turn may be wholly synthetic, or derived from coal or natural gas...

Cheers!

day_trippr said:

"Dimethyl" is not a stand-alone compound, so it doesn't "come from" anywhere.

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So they spontaneously generate out of nothing? Sounds like magic.

day_trippr said:

The term describes hydrocarbon structural components

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Ah! A hydrocarbon! Now where have I heard that term before....

dwarven_stout said:

So they spontaneously generate out of nothing? Sounds like magic.

Ah! A hydrocarbon!

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You were supposed to ask "So where do hydros and carbons come from?"

Cheers!

btw: You're mostly hydro carbons, so that must mean you were born in an oil well...

KY can work in a pinch. Its a water based lube!

Who dosnt have KY laying around!

dmcoates said:

KY can work in a pinch. Its a water based lube!

Who dosnt have KY laying around!

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People who can still get their old ladies wet, that's who.


_

wildwest450 said:

People who can still get their old ladies wet, that's who.


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I lol'd