I agree with Carl. The Viton "o" rings are pretty much impervious to most
common oils and common industrial chemicals. The extra cost will be repaid
in reliability.

Yes, until you need to make a "special" by cutting out a section and
re-joining it. Cyanoacrylate (super-glue) works surprisingly well with
natural or nitrile rubber, but it won't work with viton (or silicone).

On Sun, 12 Mar 2006 12:11:11 -0000, "Newshound"
wrote:

I agree with Carl. The Viton "o" rings are pretty much impervious to most
common oils and common industrial chemicals. The extra cost will be repaid
in reliability.

Yes, until you need to make a "special" by cutting out a section and
re-joining it. Cyanoacrylate (super-glue) works surprisingly well with
natural or nitrile rubber, but it won't work with viton (or silicone).


I use viton exclusively, I'm in the chemistry dept. at a university.
Also, you know you can buy o-ring cord stock for making your own
special sizes. I've got a little teflon V block for aligning the ends.
I should make a fixture to make square end cuts with a razor blade
too.
Randy Replogle
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Randy Replogle