From Mining Grit to Molecular Engineering
The company that would become 3M began mining corundum for sandpaper production in Two Harbors, Minnesota. When the mineral deposits proved unsuitable, the founders pivoted to manufacturing abrasive products — a decision that forced the company to develop adhesive coating technologies from scratch. That early constraint shaped a culture where solving a bonding problem matters more than selling a catalog item.
By the 1920s, 3M had introduced masking tape for the automotive paint industry. By the 1960s, the company held more adhesive patents than any other organization. Today, the adhesive technology portfolio spans pressure-sensitive adhesives, structural films, hot melts, reactive urethanes, and silicone systems — each refined through decades of empirical testing rather than theoretical modeling alone.