That's an excellent question for any downtown area manager. Vandalism is a real concern, and finding the right waste bin can significantly reduce maintenance costs and keep public spaces looking clean. Based on my experience, you'll want to focus on two main aspects: material and design.
For materials, I highly recommend looking at powder-coated steel or stainless steel bins. Powder-coated finishes, especially in textured or matte dark colors like charcoal or forest green, are fantastic. Graffiti doesn't adhere well to them, and most spray paint can be wiped off with a suitable solvent without damaging the coating. Stainless steel is another top contender—its non-porous surface allows for easy cleaning with graffiti remover. Some advanced polyethylene options now also have a special coating that resists paint adhesion.
The design is just as crucial. Opt for a bin with a smooth, curved surface without large, flat panels. Vandalists tend to target flat, canvas-like spaces. A rounded design offers no easy "canvas." Also, consider a dark color as mentioned; it makes spray paint less visually prominent even if it does occur, buying you time for cleanup.
I'd suggest looking at products labeled as "anti-graffiti," "vandal-resistant," or "public space" bins from reputable commercial outdoor furniture suppliers. They are built for this exact challenge. A good tip is to request a small sample panel to test with spray paint yourself—see how easily it cleans off before making a large purchase. Investing in these upfront will save your team countless hours and resources in the long run, keeping your downtown area welcoming and well-kept.