[APD] Re: Aquatic-Plants Digest, Vol 18, Issue 17

["William M. Cwirla" <wcwirla at verizon_net>]

I second that!  In the chemistry laboratory, we used silicone grease on 
0-rings, never petroleum jelly.  Depending on the type of rubber used 
for the o-ring, degradation can be might quick.

WMC

On Feb 9, 2005, at 12:41 PM, aquatic-plants-request at actwin_com wrote:

> I have to totally disagree on the use of Vasaline or any other 
> petroleum jelly product on a filter's O-ring.
>
> Petroleum jelly (Vaseline) will actually degrade the rubber, causing 
> it to break down and get "gooey" for the lack of a better term. That 
> O- ring will eventually fail and the canister filter will surely leak.
>
> Any non-petroleum based lubricant (K-Y Jelly fdor instance) would be a 
> much better choice.
>
> Mike Firrincili

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