Re: [APD] Re: Leaky Eheim

["S. Hieber" <shieber at yahoo_com>]

Otoh, the silicone rubbers don't do well with silicone
lubricants. Best bet is to see what the manufacturer
recommends, if anything. If "anything," then it will be in
the instructions.

sh
--- Vaughn Hopkins <hoppy1 at surewest_net> wrote:

> It depends upon what kind of rubber the O ring is made
> of.  It could be 
> Buna N, or Nitrile, or a Silicone Rubber, or Ethylene
> Dipropylene 
> (EPDM), or other compounds.  Some are made to be used
> with petroleum 
> products and others aren't.  EPDM, for example, would
> swell  up and get 
> soft with petroleum jelly, but some Silicone Rubbers
> would work fine.
> 
> On Monday, February 7, 2005, at 04:01 PM, Graham
> Broadbridge wrote:
> 
> >> Is there a consensus on what lubricant is good for
> maintaining
> > o-rings?  I was under the impression that
> >> petroleum jelly would degrade rubber (like dissolving
> like).
> >
> > I certainly wouldn't use petroleum jelly on rubber.
> >
> >
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> 
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