The Rainbow Panda coating machine has gone through an upgrade programme with the aim of further improving the system cleanliness to meet the stringent levels required by the touchscreen market. Key improvements have been made to both air and liquid filtration. The machine now has a full length multi fan HEPA filtration system creating a positive, clean air flow directly above the critical coating area. Fine filters have also been added to the liquid supply system, both at liquid pick-up and immediately prior to dispense. These changes are now standard fit for the Panda coater.