BLEND PRIMER AND PAINT - 320 grit, 400 grit, 600 grit and 800 grit are perfect for smoothing and refining glaze and spot putty before primer. Also, ideal for smoothing primer and blend area before color base coat. | WET OR DRY SANDING - Use for wet sanding and dry sanding without switching sandpaper | SMOOTH FINISH - Delivers 10% smoother finish vs. conventional 3M sandpaper | LONGER LASTING SANDPAPER - Silicon carbide abrasive self-fractures for longer life | ASSORTED GRIT PACK - One package features two sheets of 320 grit and one sheet each of 400 grit, 600 grit, and 800 grit. | GREAT FOR AUTO BODY REPAIR - Silicon carbide grain is available in a range of grits from 400 grit for 2500 grit for non-aggressive sanding and polishing jobs on clear coat, plastic and metal, including areas that require hand compounding and for sanding dark colored paints | Features durable yet flexible lightweight (A - Weight) paper backing to conform to auto body surfaces | Available in 9” x 11” and 3-2/3” x 9” sheets for a variety of uses | Convenient sheet can be used wet or dry on paint, primer, gel coat and metal | IDEAL FOR STEP 3 OF THE 3M BODY REPAIR SYSTEM - PAINT. This stage includes painting the area and blending and smoothing primer and paint.