NO. 3 FINISH
This is a ground unidirectional uniform finish. Obtained with a 80-100 grit abrasives.
The end result gives it a non-reflective, general purpose finish.
NO. 4 FINISH
This is a ground unidirectional finish obtained with a 150 grit abrasive. It is not highly reflective, but is a general purpose finish on compnents which will suffere fairly rought handling in service (e.g. restuarant equipment).
NO. 6 FINISH
These finishes are produced using rotating cloth mops, which are loaded with abrasive paste. The finish depends on how fine of an abrasive is used. The finish has a unidrectional texture of varying reflectiveness.
NO. 7 FINISH
This is a buffed finish having a high degree of reflectiveness. It is produced by progressively using finer and finer abrasives, then finishing it with buffing compounds. Some fine stratches may remain from the original starting surface.
NO 8. FINISH
Similar to a No. 7 finish, the final operation is done with extremely fine buffing compounds. The final surface is blemish free with a high degree of image clarity and is a true mirror finish.