Cleaning composition, method and apparatus for cleaning exterior windows

摘要

A no scrub/no wipe method for cleaning exterior windows without filming or spotting includes spraying a cleaning composition onto the window surface, preparing purified rinse water by passing rinse water through an ion exchange resin and rinsing the window surface with the purified rinse water. A spray gun (12) comprising separate chambers for the cleaning composition (14) and the ion exchange resin (16) is disclosed.