By the 1970s, American manufacturers were fighting stiff competition from inexpensive imports, so to hopefully better survive, the Max Eckardt & Sons Company merged with Poloron in 1972. Poloron was a Styrofoam and blow-mold plastics manufacturer specializing in coolers, ice chests and outdoor lighted Christmas décor.
During the Poloron era of the 1970s, glass Shiny-Brite ornaments continued to be produced in many of the same treatments as during the late 1960s.
In order to compete with the cheap imports, Poloron upgraded many of the Shiny Brite motifs by producing them with deluxe satin finishes, deep, rich lacquers, and lots of heavy Venetian dew or glass glitter mica frosting. And to keep the retail prices competitive, the larger, costlier ornaments were sold in quantities of nine or six. Only the smaller ornaments were still offered in boxes of twelve.
Sadly, in spite of the valiant attempt to keep Shiny-Brite alive, the brand faded during the late 1970s and Poloron closed in 1981.