What was the original failed experiment that eventually led to the invention of Post-it Notes at 3M?

Product innovations often emerge from unexpected places and sometimes even from failed experiments. The journey from laboratory mishap to market success can reveal fascinating insights about innovation processes. This poll explores one of the most iconic accidental product discoveries that transformed everyday office life and became a staple in homes and workplaces worldwide. Test your knowledge about how persistent innovators can turn seeming failures into billion-dollar product lines.

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An attempt to create a super-strong adhesive that accidentally produced a weak, repositionable one
A failed waterproof paper experiment that created paper with an unusual sticky backing
A color-changing ink project that unexpectedly developed residue that could stick to surfaces temporarily
A heat-resistant coating test that produced a substance that adhered lightly to pages without damaging them