Coarse Grit (e.g., 40-80 grit):

• Purpose: Rapid material removal, shaping, and stripping.

• Examples: Ideal for removing old finishes, leveling surfaces, and shaping wood. 

• Mirka Products: Mirka Autonet (P80-P180) for filler sanding and substrate removal, Abranet (P80) for initial sanding. 

Medium Grit (e.g., 100-180 grit):

• Purpose: Smoothing surfaces, removing scratches, and preparing for finer grits. 

• Examples: Sanding surfaces between coats, feathering repair edges. 

• Mirka Products: Mirka Autonet (P180-P320) for surface preparation and feathering, Mirka Gold PSA sanding rolls (P80-P400) for general sanding. 

Fine Grit (e.g., 220-400 grit):

• Purpose: Smoothing surfaces, preparing for finishing, and achieving a finer finish. 

• Examples: Sanding primers, preparing surfaces for topcoats. 

• Mirka Products: Mirka Autonet (P320-P800) for primer sanding and keying surfaces, Mirka Waterproof (600 grit) for fine sanding between coats. 

Very Fine Grit (e.g., 400-600 grit and higher): 

• Purpose: Achieving a smooth, polished finish.

• Examples: Final sanding before applying topcoats or finishes, wet sanding.

• Mirka Products: Mirka Waterproof (600 grit) for fine sanding between coats.

Mirka Abranet: 

• Key Feature: Mesh-based design for excellent dust extraction and compatibility with any sander.

• Benefits: Reduced dust, longer lifespan, and consistent performance.