The powdered coated, wheels don't have a clear coat. They shine from if from the coated paint. Heated brake dust eats the finish, off them. Leaving pits, brown burnt in coating. If not kept clean. Bake in. The Polish alloy ones are clear coated. The clear coat, starts to fail on them. Salt, tire changing, rock chips, peeling of the clear coating. Those issues, left bare, uncoated , leads deteriorate of the alloy finished.
Like Neon mentioned. All types of alloy wheels, can be refinished. $100-150 buck, new again.
Like Neon mentioned. All types of alloy wheels, can be refinished. $100-150 buck, new again.