It's nice not being married. I keep stuff like that in the freezer. I use that 3M 4200/5200 stuff that's like $35 a tube.
Storage of Unused Product
1. Create a “Silicone Plug” by allowing excess material to extend beyond the extension nozzle or aerosol tip to cure, sealing and protecting the remaining product from moisture. For reuse, simply remove the cured product from the tip.