Smooth-On, Inc.

Macungie, PAFounded 1895

Founded in 1895, Smooth-On manufactures a comprehensive line of platinum-cure silicone rubbers, urethane rubbers, urethane plastics, expanding foams, and epoxy systems for mold making, casting, special effects, and industrial repair—all compounded at its 370,000-square-foot facility in Macungie, Pennsylvania.