07D032 - Walter Blendex Plus 1/2" x 18" Coarse Non-Woven File Belt

Advanced Surface Conditioning Technology

The Walter 07D032 Blendex Plus File Belt represents a significant advancement in non-woven abrasive technology, specifically engineered for the demanding requirements of industrial metal finishing. This 1/2-inch by 18-inch belt is constructed with a coarse grade abrasive matrix embedded within a reinforced nylon backing. Unlike traditional coated abrasives that can gouge or undercut the base material, the Blendex Plus structure is designed to compress slightly upon contact, allowing the abrasive grain to cut effectively while maintaining the geometric integrity of the workpiece. This compliance is critical when working on precision components where dimensional tolerance is paramount.

The reinforced nylon backing is a key differentiator for the Blendex Plus series. In file belt applications, belts are subjected to significant tensile stress and tight radii around contact arms. Standard non-woven belts often stretch or fray under these conditions, leading to premature failure or inconsistent tracking. Walter's reinforced design ensures dimensional stability, allowing the belt to track true and deliver consistent pressure throughout its lifespan. This structural integrity translates to uniform scratch patterns and predictable surface roughness (Ra) values, which is essential for meeting strict finishing specifications in industries such as aerospace, pharmaceutical, and food processing equipment manufacturing.

Thermal management is another critical attribute of this product. The open-web structure of the non-woven material promotes airflow at the point of contact, effectively dissipating heat. This cool-cutting action prevents heat accumulation that leads to thermal discoloration (heat tint) on stainless steel or the melting and loading of softer non-ferrous metals like aluminum. By mitigating heat transfer, the 07D032 belt preserves the metallurgical properties of the substrate and reduces the need for subsequent rework or passivation steps caused by overheating.

This coarse grade belt is particularly effective for aggressive cleaning and blending tasks. It is capable of removing light weld spatter, surface oxidation, and handling marks, preparing the surface for subsequent fine finishing or coating applications. Its versatility extends across a wide range of materials, including carbon steel, stainless steel, aluminum, and exotic alloys, making it a universal solution for MRO and fabrication environments requiring high-quality surface conditioning in confined spaces.