A question about O-Rings

I was cleaning one of my O-Rings and realized I can feel a rim around the ring where excess rubber was left in the manufacturing process from the meeting of the two halves of the mold. Does this excess material predispose ring to leaking? Is there a safe way to remove this or is it not something to be concerned about? I have used it without leakage but not at any significant depth.

--Chris

This should not be on an O Ring.

I have never encountered this on any engineering O Rings that we use here.

Replace it - depending on where it falls on the seal face it could leak.

Hi Chris,

I have had big blue O rings with rims around them and haven't had any problems...

... so far !

I guess as long as the rim isn't where the seal is made, you're OK. But if in doubt, you might want to check with your local dealer. I don't think performing surgery to remove it would be a very good idea.

JP