![]() IDEAL FOR STEP 4 OF THE 3M BODY REPAIR SYSTEM - Finish.Convenient sheet can be used wet or dry on paint, primer, gel coat and metal.Features Waterproof backing for wet sanding applications.Once all the pencil marks disappear on a single pass, its time to switch to a medium grit sandpaper. It may take two or three rounds of pencil marks with the coarsest sandpaper to make the board flat. Available in 9” x 11” and 3-2/3” x 9” sheets for a variety of uses Go over the surface again with 80 grit sandpaper to bring the rest of the surface down to the low spot.Features durable yet flexible lightweight (A - Weight) paper backing to conform to auto body surfaces.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 3M Sanding Sheet Comparison Based on backing life during hand sanding when compared to 3M conventional sandpaper of comparable grit.LONGER LASTING SANDPAPER - Silicon carbide abrasive self-fractures for longer life.3M Pro Grade Precision Faster Sanding Sanding Sponge 24001TRI-F-B, Fine, 120 Grit, 2 1/2 in x 4 1/2 in x 1 in, 1/Pack. SMOOTH FINISH - Delivers 10% smoother finish vs. 3M All Purpose Sanding Sponge CP-000-ESF, Extra Fine, 3 3/4 in x 2 5/8 in x 1 in, 1/Pack, 24/Case.Sandpaper Grit Ranges Sandpaper grit ranges can be divided into two types: micro and macro grit sandpapers. If there is a P in front of the grit number, for example, P300, then you know it follows the FEPA grading system. Green, called Light Duty Hand Pad - (600) 600 grit 7447 - Maroon pad, called General Purpose Hand - (320-400) 320 grit I also have the blue but that one seems to melt when used with the Dremel. Sandpaper is labeled on the back with the grit size. SCOTCHBRITE GRIT CHART (courtesy of Charlest) 3M Scotch Brite Nylon Pads: 7445 - White pad, called Light Duty Cleansing. ![]() WET OR DRY SANDING - Use for wet sanding and dry sanding without switching sandpaper CAMI is used mainly in North America and FEPA in Europe.Also ideal for smoothing light paint texture in clear coat POLISH CLEAR COAT AND RESTORE SHINE - 1500 GRIT is perfect for smoothing dust nibs and paint runs in clear coat.
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