Powder coating is a more durable and longer lasting option than paint. It is resistant to scratches, chips and scrapes. The process of curing is also a key step in the powder coat process: as it cures, thicker layers can be applied as it increases in durability.
When a powder coat finish is applied correctly, maintained and installed correctly, it should last forever. The preparation, application, curing and installations play a major role in this process. If done correctly, (even though the powder coating is not chemically bonded to the item), it will be almost impervious to chips, cracks, and other injuries.