DIY pipe curtain rods using pvc piping. Important to note that if you make rods longer than 3-4 ft, you'll need a middle support as they'll droop from the weight of curtains. When painting, spray light coats, keeping the nozzle at least 12 inches from the rod, or the paint will run. Let dry completely between coats. Spray paint used: Rust-oleum, universal, hammered, copper color.