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Skyscraper washer lubrication

Skyscraper washer lubrication
The window washing rigs that scale skyscrapers rely on specially formulated greases that can withstand extreme temperature swings, UV radiation, and must never drip onto the building's glass. These lubricants are tested to remain stable from freezing winter mornings to summer heat that can exceed 140°F on sun-facing walls. A lubrication failure at hundreds of feet in the air could be catastrophic, so maintenance crews inspect and re-grease pulleys and cables every few weeks. Some modern formulas include colored dyes to help technicians visually confirm proper application.
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