I have a friend that is a maple sugarer. He gave me a small packet of Dow Corning 111 Valve Lubricant & Sealant.
The ingredients in this stuff:
Polydimethylsiloxane
7631-86-9 Silica, Amorphous
7013167-8 Dimethyl Siloxane, Hydroxy-terminated
Is this what I want to use on my o-rings?