Product Overview
The 3M™ Trizact™ 237AA is a family of high-performance coated abrasives featuring proprietary 3M microreplication technology. In this product, micron-graded aluminum oxide particles are formed into tiny, three-dimensional pyramids and evenly coated on a durable X-weight cloth backing. This engineered structure distinguishes it from conventional abrasives, which have randomly spaced mineral grains.
Key Features & Benefits
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Pyramid-Like Abrasive Structures: The 3D pyramids cut cleanly through the substrate, producing finer finishes than conventional abrasives and minimizing heat buildup.
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Self-Sharpening Action: As the pyramids wear down, fresh, sharp mineral is continually exposed. This cycle of renewal ensures a consistent cut rate and a predictable, fine finish throughout the long life of the abrasive.
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X-Weight Cloth Backing: The durable, semi-flexible X-weight backing provides a balance of conformability and stiffness. This enhances abrasive durability, resists wear and tear, and prevents the abrasive from yielding during contact with the workpiece for effective medium-pressure grinding.
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Heat Resistance: A resin bond and a specialized grinding aid help the abrasive withstand heat and prevent heat buildup, warping, delamination, and discoloration during use.
Product Forms & Availability
It is offered in a range of grades from A6 to A160. The lower the A-grade number, the finer the grit. According to the information you provided, available grades include A160 (120 Grit), A65 (240 Grit), A45 (400 Grit), A30 (600 Grit), A16 (1200 Grit), and A6 (2000 Grit).
Applications
The 3M™ Trizact™ 237AA is designed for low- to medium-pressure applications, particularly:
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Intermediate finishing and fine polishing
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Finishing, polishing, blending, and deburring
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Pre-polishing prior to plating or buffing
It is commonly used on a variety of metals, including mild steel, stainless steel, nickel, cobalt alloys, aluminum, brass, copper, and titanium
