At the 8,500-square-foot ­stainless-steel-covered Sub-Zero and Wolf showroom in New York, where the appliances need to look their shiniest and best, the staff members use Zep Stainless Steel Polish.

Satin Polished stainless steel is widely available, relatively low cost, practical in use, and the most frequently employed. Optisheen has acquired a reputation for being the highest quality ...