How Long Do Acrylic Paint Markers Last?

The use-time (drying and curing time) of acrylic paint markers is influenced by paint type, construction environment and coating thickness. Surface surface drying time is usually 10-2 hours, the actual drying time is 30-24 hours, it takes 7 days to fully solidify. The specific analysis is as follows:
Drying time analysis
Surface drying time:
Waterborne acrylic paint: typically 0.5-2 hours (room temperature 25°C, humidity ≤60%). Surface surface drying time be extended to 2-4 hours at low temperature (e.g. 5°C) or high humidity environment.
Solvent-based acrylic paint: Usually 15 minutes to 1 hour room temperature 25°C, well ventilated). Solvents evaporate and dry quickly, but the type of solvent (e.g., toluene, xylene) can affect a particular time.
Thermoset acrylic coating: Generally requires high temperature baking (e.g. 120-150°C), with a surface drying time of about 5-10 minutes. There is fewer room temperature self-drying thermosetting paints at room temperature and the drying time can be up to 24-48 hours (depending on the reaction speed of the cross-linking agent).
Drying time:
Water-based acrylic paint: 12-24 hours at room temperature and may take 7 days to fully solidify (depending on coating thickness and environment). If the ambient temperature is low (e.g. 5°C), the drying time can be extended to more than 48 hours. When drying, speed up the drying time, at 60-80 degrees Celsius, surface drying time can be shortened to 10-20 minutes, the actual drying minute is about 30-1 hour.
Solvent-based acrylic paint: 4-8 hours room temperature, 24 hours or so can be completely cured. Baking conditions (e.g. 60) can be shortened to 1-2 hours.
Thermosetting acrylic paint: Under baking conditions, dry in 30 minutes to 1 hour.
Factors affecting drying time
Ambient temperature: The higher the temperature, the faster the drying rate. Low temperatures (e.g. <5°C) can significantly prolong drying time and may even prevent paint from curing. Construction temperatures of 5-35°C (water-based) and 10-35°C (solvent type) are recommended.
Air humidity: High humidity (e.g. >85%) slows water or solvent evaporation. Hydrating paints are more affected and may have "fake dryness" (dry surface, not dry bottom).
Thickness of coating: When coated too thickly, the inner layer dries slowly, causing cracks in the outer layer or stickiness in the inner layer. It is recommended that the thickness of a single coating be limited to 60-80 microns (dry film).
Ventilation: Good ventilation accelerates solvent/water evaporation, shortens drying time, slows drying in enclosed environments, and harmful gases accumulate (solvent type).
Coating Formula: Paints containing quick-drying solvents (such as acetone) dry faster; paints added retarders can last longer, but dry more slowly.