Which revolutionary scientific product was initially rejected by its target market due to its unusual delivery mechanism, but later became standard after NASA adopted it in the 1960s?

The journey from scientific discovery to commercial product can be fascinating and complex. Many groundbreaking scientific innovations have transformed into products that changed our daily lives. This trivia question explores a famous scientific product that revolutionized an entire industry through its innovative packaging and delivery mechanism.

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WD-40 spray lubricant
Post-it Notes with pressure-sensitive adhesive
Aerosol spray sunscreen
Corning's pressurized aerosol cans for medical inhalers