The drying time of waterborne polyurethane coatings is mainly affected by the following factors:;

1. Environmental temperature and humidity: High temperature and low humidity will accelerate the drying speed,

2. Coating thickness: The thicker the coating, the longer the drying time is usually,

3: Ventilation conditions: Good ventilation helps the moisture in the coating to evaporate quickly, thereby shortening the drying process

time

4. Coating formula: Different water-based polyurethane coating formulas may have different drying characteristics

5. Substrate properties: Different substrates can also affect the absorption and drying speed of coatings

What other factors do you know? Please let me know in the comments section