After power washing, it's crucial to allow sufficient drying time before applying sealant or paint to ensure proper adhesion and longevity. Factors such as humidity, temperature, and the type of surface can significantly influence this timing. Generally, waiting at least 24 to 48 hours is recommended, but checking the surface's moisture content is essential. Additionally, consider the type of sealant or paint you plan to use, as some products may have specific requirements. Curious about the best practices for your project? Ask Improvi.ai for personalized guidance!