That's an excellent and practical question! Many people don't realize how harsh the mix inside a public trash bin can be. The short answer is: yes, modern urban trash bins are specifically designed and tested to be highly resistant to the common chemicals found in household waste.
Think about what ends up in a public bin: leftover cleaning products like bleach or drain cleaner, spilled drinks, battery leakage, personal care product residues, and general wet waste. Manufacturers understand this cocktail of substances. Therefore, bins intended for public urban use are typically made from advanced, engineered polymers like high-density polyethylene (HDPE) or polypropylene. These materials are chosen not just for strength, but for their inherent chemical inertness. They resist corrosion, discoloration, and degradation from acids, alkalis, salts, and alcohols commonly present in domestic trash.
Furthermore, the manufacturing process often includes UV stabilizers to prevent sun damage and additives to enhance structural integrity. While no material is completely impervious to every possible chemical (extreme solvents would damage them), the standard urban bin is built to handle the "normal" chemical assault from household discards for years. This resistance is crucial for maintaining public hygiene, preventing leaks that could damage sidewalks, and ensuring the bin's long service life, making it a reliable part of city infrastructure. So, you can rest assured that your city's bins are tougher than they look!