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Non-Woven Abrasives
Non-woven abrasives are generally used pre-finish as a prepping agent. By preparing a workpiece for a final finish, the chances of that finish adhering and setting properly are greatly enhanced. Additionally, removing irregular points and surfaces can help avoid gaps in finish coverage and pooling of finish.
15 Sep,2025
Open Coat vs. Closed Coat
When discussing or reading about coated abrasives, the terms "open coat" and "closed coat" may often come up. The open versus the closed coat option can affect the life and finishing properties of abrasive materials. So, understanding and applying the proper coating to the application can lead to a longer-lasting abrasive.
Grit Grading System
KONAFLEX's coated abrasive products, except Alumina Zirconia and Ceramic Aluminum Oxide, are graded by grit size using the FEPA (Federation of European Producers of Abrasives) or P-grade scale. Some competitive products are graded according to the CAMI (Coated Abrasives Manufacturers Institute) scale. P-graded products are easily identified by a "P" preceding the grit size designation on the back of the material. The chart on this page compares both the scales and the relative sizes of abrasives in inches and microns.
All About Backings
Paper backings are available in different weights or thicknesses using the designations A (the lightest weight) through F (the heaviest weight). Lightweight papers A-C are commonly used for power sanding with sheets or discs or hand sanding. The heavier weights (D, E & F) may be seen in sheets or discs for power sanding, or in the case of the E & F weights for belt materials. Only the E & F weight products are considered heavy enough to be belt materials. Some parameters that need to be met before
All About Grains
AO is formed by combining bauxite and other materials, and firing them in an electric furnace. The resultant mass is crushed, and the pieces sifted through successively finer screens to assign a grit size (CAMI grading). When crushed, the resulting pieces are naturally pyramidal. Due to the shape and the strength of the materials used in its making, AO is a very durable grain. The grain is worn down during use, sanding finer the longer it's used.