You have decided to invest in a vacuum metallizer. You receive three proposals from different manufacturers, and each one includes a multi-page technical specification sheet. One machine boasts a “600 m/min speed,” another highlights an “8 × 10⁻⁵ mbar ultimate vacuum,” and a third focuses on “pumping capacity.” Without an…

Most vacuum metallizers spend their entire working lives coating one material: aluminum. The evaporation boats, the vacuum pumps, the chamber geometry — everything optimizes for aluminum’s 1,200°C evaporation temperature and its forgiving deposition characteristics. Then a converter gets an inquiry from a customer who wants copper-metallized film for EMI shielding.…

Walk onto a metallized film production floor, and the machine dominating the space will look very different depending on what it produces. One line runs 12-micron PET at 600 meters per minute, depositing a standard 400-angstrom aluminum layer for snack food packaging. Next to it, another machine — visually similar…