Grit sequence is defined as the order in which multiple grits of sandpaper are used, in relation to one another, when attempting to achieve the desired finish. When such a situation presents itself, a proper understanding of the grit sequence is of the utmost importance. This is often the case when you wish to remove excess material, yet finish your project in a refined manner. However, there are many cases where the use of multiple grits of sandpaper is necessary. If you are intending to remove excess material from a work surface, then coarse grit sandpaper will serve as the best possible choice.Īlternatively, if you are simply attempting to finish a previously prepared surface, then the use of finer grit sandpaper will be in order. When using any type of sandpaper, it is important to consider the exact goal that is to be achieved. Related: Wet Sanding vs Dry Sanding (Best Use Cases) Importance of Grit Sequence No matter the rating designation, the same low (course) to high (fine) grit is standard. If sandpaper grit numbers are prefixed by the letter “P”, then it is considered a FEPA designation, while straight numerical ratings are typical of the CAMI variety. These designations include those established by the Coated Abrasive Manufacturers Institute (CAMI) and the Federation of European Producers of Abrasives (FEPA). ![]() Sandpaper grit rating is typically denoted by one of two rating designations. On the contrary, higher grit sandpapers are ideal when attempting to provide working surfaces with a smooth, vibrant finish that is free of unsightly swirl marks. ![]() Sandpapers of a lower grit rating are better suited for removing material at a rapid rate, and quickly renewing deeply pitted surfaces. ![]() On the other hand, lower grit sandpaper features much larger abrasive media. As a general rule, the higher a sandpaper’s grit number, the finer its abrasive media. This rating describes the size of abrasive materials which is affixed to the paper’s backing. What Does the Sandpaper Grit Number Mean?Įvery piece of sandpaper carries a specific grit rating. What Does the Sandpaper Grit Number Mean?.
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