Yes, you can absolutely paint outdoor trash cans after they've been installed! Many homeowners and property managers choose to refresh the appearance of their bins to match their exterior decor or simply to cover up scratches and fading. The process requires some preparation but is quite straightforward.
For metal trash cans, start by thoroughly cleaning the surface with soapy water and a degreaser to remove all dirt and grime. Lightly sand the entire surface with fine-grit sandpaper to help the paint adhere better. If you're working with galvanized steel, use a vinegar solution or metal etching primer to prepare the surface. Apply a rust-inhibiting primer if there are any signs of corrosion.
When it comes to paint selection, opt for exterior-grade spray paint specifically formulated for metal surfaces. These paints typically contain rust inhibitors and provide better durability against weather elements. Apply multiple thin coats rather than one heavy coat, allowing proper drying time between applications. For plastic bins, use paints specifically designed for plastic surfaces, as regular paint may not adhere properly.
Allow the final coat to cure completely for at least 24-48 hours before using the trash can again. This painting project can significantly extend the life of your outdoor bins and improve your property's curb appeal with just a few hours of work.