what is the difference between silicone o-ring and the rubber o-ring

will the silicone o-ring can last forever like the rubber o-ring?

Silicone o-rings generally last as long as rubber o-rings. Note that I am referring to the red silicone rubber o-rings.

If you are referring to the clear silicone ones that come in the newer YYJ models, they last a long time but probably not as long as the black rubber ones.

how about in the silicione o-rings of YYJ SFX?

Those are the new ones he’s talking about.