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silicone lubricant for gaskets

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silicone lubricant for gaskets - 2/18/2006 9:26:36 AM   
heytobb

 

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As a newbie I'd like to keep my windshield/top gaskets in good shape. Have read on here that silicone lubricants work, but I cannot find anything that seems oily enough. Just sprays. Any advice on where to find a good product?
Thanks,
BB in Florida, proud new owner
SLK 230 1999 30k miles
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RE: silicone lubricant for gaskets - 2/18/2006 9:49:03 AM   
Lugnut




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Spray a rag and then wipe the seals.

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(in reply to heytobb)
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RE: silicone lubricant for gaskets - 2/18/2006 12:07:15 PM   
snanceki

 

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The absolute best stuff for this application is called Krytox made by Dupont. Look it up on Google. Operating range is something like -200C to +200C. Should suffice

Its used by most major manufacturers to overcome squeaks. Its mega expensive but once applied lasts forever.
You just can't wipe it off! Usually applied from a small bottle with spong applicator but has recently become available in a spray can.

Not sure where its sold in the USA but its made there.


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RE: silicone lubricant for gaskets - 2/22/2006 1:15:02 AM   
tancalvo

 

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i thougth that silicone craked rubber in time making the problem worse then the medicine

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RE: silicone lubricant for gaskets - 2/22/2006 1:33:45 AM   
snanceki

 

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Does Krytox® contain silicone?
No.

Krytox is a perflouropolyester like PTFE and is inert and designed to be compatible with plastics. I therefore don't think it has silicon in it.
I did get the temp range wrong however -135 to +650 deg F.

Go view: http://www.dupont.com/lubricants/en/industries/automobile.html

USA contact number is on Frequently Asked Questions page.

Stuart

< Message edited by snanceki -- 2/22/2006 8:57:08 AM >

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RE: silicone lubricant for gaskets - 2/22/2006 8:06:28 AM   
Lugnut




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I've never heard of that. Of course I don't know everything, so how can an oily substance that keeps rubber soft crack it?

I think cracks may appear if you over soak the seals and then let them collect enough dirt over a long period without further silicone treatments or cleanings. Then as you keep mashing the seal in a door, for example, the dirt is an abrasive that dries and deteriorates the seal.

(in reply to tancalvo)
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