Light Stock Removal – Removes material moderately without large scratches.Moderate Abrasive Size – Grit sizes generally range from P80 to P120.Medium-grit sandpaper has a mid-range abrasive size that provides a balance of stock removal and smoother finishing. It provides fast smoothing, shaping and finish removal. It would damage soft woods, plastics or composites.Ĭoarse sandpaper is an aggressive abrasive designed for heavy stock removal where surface finish is not a priority. Soft Materials – Coarse paper should only be used on hard surfaces.Faster Shaping – For major material removal when shaping objects, coarse grits efficiently remove wood or metal with less wear on sandpaper.Surface Smoothing – Although scratches will be deep, coarse paper can level uneven surfaces as a first step before finer grits.Paint/Varnish Removal – The abrasive cuts aggressively through top layers, quickly removing old paints or varnishes. ![]() High Stock Removal – The large abrasives make coarse grit paper ideal for stripping finishes, smoothing rough surfaces and rapid shaping or leveling of wood and metal.Particles are typically between 425 and 710 microns. Large Abrasive – The large grit size removes material rapidly with deep scratches.The lower grit number indicates larger abrasive particles. FEPA classifies them as P1500, P2000, or P2500, while CAMI classifies these as 800 or 1000, and the average diameter size of particles ranges between 8.4 to 12.6 micrometers.Coarse grit sandpaper refers to abrasive paper with a relatively low grit number, usually ranging from P40 to P60. This is one of the most delicate abrasives and is appropriately used for polishing thick finishes and performing final sanding. FEPA classifies them as P800, P1000, or P1200 while CAMI classifies them as 400, 500, or 600, and average diameter sizes range from 15.3 to 23.0 micrometers. It is just strong enough to thin patches and small inconsistencies in the layer's application, but not rough enough to actually remove anything that would want to be kept. Super fine micro grade paper is ideal to sand the final layer of finish on wood. FEPA standards classify these types of sandpaper grit as P400, P500, or P600 while CAMI classifies them as 360 or 320, and diameter sizes range between 25.8 to 36.0 micrometers. The diameter size is between 40.5 to 58.5 micrometers. ![]() FEPA classifications are P240, P280, P320, or P360 while CAMI classifications are denoted as 240. The micro grit types of sandpaper grit are classified as follows and are primarily used for small, precise sanding, like taking off coats of finish or smoothing small areas of buildup.ĭespite the identical name to the abrasive paper category listed above, very fine micro grits are distinct and are used for sanding finishes in between consecutive coats on either wood or drywall. The diameter of the particles ranges between 66 to 100 micrometers. As per FEPA standards, such sandpaper grit is denoted by P150, P180, and P220, while CAMI standards denote them as 150, 180, or 220. Very fine sandpaper grit is used for sanding over bare wood. The diameter size of the particles ranges between 115 and 162 micrometers. The FEPA standards denote such sandpaper grit types as P100 or P120 while CAMI standards denote them as 100 and 120. These can also be used to clean plaster as well as water stains present on wood. Such sandpaper grit types are not suited for varnish removal or removing paint on wood. These kinds of sandpaper grit are used to prepare wood for the finishing. The diameter of the particles ranges between 190 to 265 micrometers. The FEPA standards denote such types of sandpaper grit by P60, or P80, and CAMI standards denote it as 80. This kind of grit is used to sand bare wood to prepare it for varnish removal or final finishing. However, it may not leave behind the smoothest surface texture. This sandpaper allows you to clear away a layer of finish or debris with little effort. The typical diameter of the sandpaper grit ranges between 336 to 425 micrometers. As per FEPA standards, these are classified as P40 or P50 and are denoted as 40, 50, or 60 by CAMI standards. These types of sandpaper grit classes ensure rapid material removal. ![]() The average diameter of the sandpaper grit particles can range anywhere between 530 to 1815 micrometers. As per the FEPA standards, the sandpaper grit sizing is denoted by P30, P36, P12, and P16, while the CAMI standards denote the classes as 24, 30, or 36. Because of the roughness, extra coarse sandpaper is used for the initial round of sanding on hardwood flooring. This highly coarse sandpaper grit ensures expedited removal of all kinds of material. ![]() The one thing they all have in common is that abrasive papers in this family all have fewer grains, but the grains they have are large. Macro grit sandpapers range across the following sub-types.
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