This project aimed to reduce paste usage and costs on Backing Line 4 by improving the calendar roll, backing roll, and installing new measurement tools. Goals included installing a new nip station, controlling paste temperature to manage viscosity, and using a Terahertz thickness gauge to eliminate destructive testing. The project achieved a cost savings of $1.7 million annually within one month by installing temporary new rolls. Controlling paste temperature and installing the gauge were ongoing. Success criteria included reducing paste usage and providing real-time thickness measurements for better process control.