Exposure to air is what causes these finishes to break down, which is where Bloxygen comes in. Spray it inside an open can and the argon gas lays atop the liquid, creating a barrier against air in the can. (Argon is heavier than oxygen.) The gas is inert so it won’t react with other chemicals and it’s non-flammable, too.
Maker Steve Zawalick researched, tinkered, and even checked in with a NASA-funded makers program when creating Bloxygen. Steve is a woodworker and nuclear engineer, so he was well-suited to tackle this scientific approach to preserving finishes.