The self-cleaning glass market is expected to grow at a CAGR of 4.5% between 2019 and 2025. There are two main types of self-cleaning coatings: hydrophobic and hydrophilic. Hydrophilic coatings based on titanium dioxide can also chemically break down dirt in sunlight. The Asia Pacific region is expected to experience the fastest market growth due to increasing disposable incomes and demand for sustainable construction.