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How do resin adhesives improve coated abrasives used for severe grinding?

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Angle grinder — abrasive Worker using an angle grinder to smooth a piece of metal.

In the context of coated abrasives, resin adhesives are essential for severe grinding operations because of their unique thermal properties. While water-soluble adhesives are typically used for lighter, dry sanding, all-resin adhesives are specifically engineered to withstand the intense conditions of heavy-duty work.1

The primary advantage of using resin in these applications is that the heat generated during the grinding process actually increases the adhesive's holding strength. This ensures that the abrasive grains remain firmly bonded to the backing material—such as paper or cloth—even under the high-stress, high-temperature conditions characteristic of severe grinding. By maintaining this bond, resin adhesives prevent premature grain shedding, thereby extending the tool's life and maintaining consistent performance during demanding industrial tasks.1