Why Does Eco-friendly Water-based Paint Dry Slowly

Water-based paint uses water as the diluent; its evaporation is far slower than organic solvents, so it is prone to slow drying under the combined influence of environment, application and mixing ratio. Main causes: unsuitable conditions - low temperature, high humidity and poor ventilation are the leading triggers; when air humidity is high the surface moisture cannot evaporate quickly, easily causing 'false dry'. Non-standard application - a single coat that is too thick, or too-short intervals between coats, traps internal moisture and creates uneven drying. Wrong dilution - adding too much water greatly lowers solid content and extends the drying cycle. Low substrate temperature or sealed substrate pores also block moisture escape, leaving the film uncured for a long time. Sites without constant-temperature/dehumidifying equipment, and work in rainy weather, worsen the delay. Solutions: control temperature and humidity, limit film thickness, ensure ventilation, and mix strictly to ratio so the paint cures normally.