#3 FINISH
This is a polished finish obtained by finishing the metal with an approximately 100 grit abrasive, generally used as a semi-final finish. This is often used for architectural components and food processing/kitchen equipment.

#4 FINISH
This finish is a general purpose, polished bright finish. The final finish is generally done with abrasives having a particle size of 120 to 150 mesh, following the initial grinding with coarser abrasives. This finish is often used for architectural wall panels, elevator doors and interiors, furniture, storefronts, restaurant equipment, kitchen equipment and dairy equipment.

#4 NON-DIRECTIONAL SATIN
This finish is obtained by using 80 - 150 grit with no grain direction.

#4 LONG GRAIN
This finish is the same as #4 but with an elongated continuous grain.