That's an excellent question, as sun damage is a real concern for anything left outside. The good news is that most quality outdoor trash bins are specifically engineered to be highly resistant to UV rays.
The level of resistance depends heavily on the material and manufacturing process. Bins made from materials like high-density polyethylene (HDPE) are often treated with UV-inhibiting stabilizers during the production phase. This additive is mixed directly into the plastic, creating a protective barrier throughout the entire material, not just on the surface. It effectively absorbs and dissipates the sun's harmful radiation, significantly slowing down the fading process.
Furthermore, many bins feature fade-resistant pigments. Instead of a superficial coat of paint that can peel, these colorants are integrated into the plastic resin itself. This means the color you see is the color of the material all the way through. While no plastic is entirely immune to the long-term effects of intense, direct sunlight, these technologies ensure that your bin will maintain its color and structural integrity for many years without becoming brittle or significantly washed out. So, when you choose a reputable outdoor bin, you can be confident it's built to last and look good, season after season.