After reading that this product wouldn't work on cheap magnetic brass hinges, I tried buying new ones in bronze. After a couple of failures with buying the correct size/type of hinge, I decided to try the rub n buff.For those who asked about using this over cheap hinges that are actually brass color over steel or aluminum (do magnet test), rub n buff does work. I just did it. Soak hinges in mineral spirits or thinner. Spray clean hinges with zinseer123, I used white which I had on hand. Let dry. (I sprayed both sides and let dry over night). Once dry, I applied rub n buff with a rag. Because I used white zinseer123 primer I had to used a toothbrush to apply the rub n buff in the crevices that showed still showed white. I used ebony and autumn gold to create bronze. They look amazing.