The drying time for Rustoleum paints, including those from the Zinsser brand, can vary depending on several factors such as the type of paint, environmental conditions, and the surface being painted. Generally, most Rustoleum paints are formulated to be dry to the touch within 1 to 2 hours. However, it is important to note that full curing, which is when the paint reaches its maximum hardness and durability, may take longer. Typically, this can range from 24 hours to a week, depending on the specific product and conditions such as humidity and temperature. For the best results, it is advisable to refer to the instructions provided on the product label or visit the official Rustoleum website for detailed information specific to the paint being used. Always allow additional drying time if conditions are less than ideal.