> wrote in message
...

>
> I don't fully agree with your chemistry, but the facts are that if you
dont
> do it
> correctly, you can get in trouble.

I guess I should have gone a little further, if I were going to say anything
about curing.
Common types are acetoxy/acetic acid/anhydride based, where moisture
initiates the cure with
release of small amounts of acetic acid.

These are the cheaper and more ordinary variants.

There are others, better and more expensive, which depend upon other
reactions.

A catalytic amount of moisture will start this type of crosslinking
reaction. Too much water
is not a good thing.

And that is enough about chemistry.

Read the instructions, err on the conservative side. Better still, use the
O-ring that was designed
for the application.