#4 Satin Finish

The #4 finish is often regarded as the industry standard for satin finishes. Its appearance is relatively smooth, characterized by a grain made up of short, parallel lines. The fine lines of this finish produce a surface that gives off a higher sheen than many other satin finishes, but with significantly reduced maintenance demands compared to mirror finishes. The #4 finish is a popular choice for many metals, but especially 304 stainless steel (and other varieties of polished stainless steel).

At Polished Metals, we provide superior quality across all satin finishes, including #4 finishes.

How Is the #4 Satin Finish Produced?

The #4 satin finish is similar to #3, except more refined looking and featuring a smoother appearance. After initial polishing, the final finish is achieved by polishing with a 120-180 grit abrasive belt.

#4 Finish Use Cases

As the industry standard for satin finishes, the #4 finish sees wide use across a number of industries, and particularly industries that favor stainless steel for various use cases. Examples of industries and products that may use this finish include:

Elevators and Escalators for trim, railings, walls, and more.
Food and Beverage Industry for appliances, food prep countertops, food and liquid storage, and other areas where metal may come in contact with food and drink.
Industrial Metals for a wide variety of use cases subject to high safety and cleanliness standards, such as the pharmaceutical industry, manufacturing, brewing, and more.

The 4 satin finish is available on a wide variety of metals, including stainless steel, aluminum, and red metals such as brass.