We use a lot of loctite on the ranch. Have blue, red and green sleeve retainer in the "big" bottles. No special storage, just room temp on a shelf. Products are nit over 5 years old and still work fine. Just keep the cap on to seal the bottle.

Silicones are best used quickly. They all seem to dry out once they are opened.

Antiseize....that stuff seems to last forever, especially Catapillar brand.