Why is diethylene glycol monobutyl ether called 'Da Fang Bai' and how does it prevent paint film blushing?

Why is diethylene glycol monobutyl ether called 'Da Fang Bai' and how does it prevent paint film blushing?
The nickname 'Da Fang Bai' literally means 'big anti-whitening' in Chinese, reflecting DGBE's critical role in preventing paint film blushing and hazing. When coatings cure in humid or rainy conditions—common in South China's summer—moisture can condense on the drying film, causing a white, foggy appearance. DGBE's high boiling point (231°C) and slow evaporation rate allow it to remain in the film longer, keeping the coating's solvent balance stable and preventing water pickup. It also improves resin solubility and film coalescence, reducing defects like orange peel and pinholes. This makes DGBE indispensable in industrial coatings, automotive refinish paints, and wood lacquers, where appearance and durability are paramount.