Abrasive Sheets

Abrasive sheets are versatile hand-sanding materials used throughout aircraft maintenance, surface preparation, paint finishing, and general MRO work. Available in a range of grits, sheet abrasives allow technicians to control the amount of material removed while preparing surfaces for primers, paints, coatings, sealants, and other finishing processes.

For aircraft maintenance applications, abrasive sheets are commonly used for feathering repaired paint edges, smoothing primers and fillers, removing minor surface imperfections, preparing metal and composite surfaces, and refining finishes before final coating or polishing. Finer grits can also be used for controlled finish work where minimizing visible scratches is important.

Choosing the Right Abrasive Sheet

Abrasive sheet selection generally begins with the required level of material removal and the desired surface finish. Coarser grits are useful for more aggressive sanding and initial surface preparation, while progressively finer grits can be used to refine the surface and reduce the depth of sanding scratches.

Wet-or-dry abrasive sheets provide additional flexibility for maintenance and refinishing operations. Wet sanding can help reduce loading and control dust during appropriate finishing applications, while dry sanding provides a convenient option for general surface preparation and repair work.

Abrasive Sheets for Aircraft and MRO Applications

Sheet abrasives may be used on a variety of aircraft maintenance materials and components, including painted surfaces, primers, fillers, composites, metals, plastics, and other substrates where controlled abrasion is appropriate. Always follow the applicable aircraft maintenance instructions, repair procedures, and material manufacturer's recommendations for the specific application.

BAC currently offers 3M Wetordry 431Q Abrasive Paper Sheets in individual sheets and multiple grits, providing a convenient option for technicians who need specific abrasive grades without purchasing an entire package.

3M Wetordry 431Q Abrasive Sheets

3M Wetordry 431Q is a silicon carbide abrasive paper designed for wet or dry finishing applications. BAC sells the sheets individually, making it possible to order the grit and quantity needed for a particular maintenance or refinishing job.

View 3M Wetordry 431Q Abrasive Sheets

Common Uses for Abrasive Sheets

• Paint and primer surface preparation
• Feathering repaired paint edges
• Removing minor surface imperfections
• Composite repair preparation and finishing
• Metal surface preparation
• Paint and clear-coat finishing
• Surface refinement before polishing or additional coating

When selecting an abrasive sheet, consider the substrate, required material removal, desired surface finish, and whether wet or dry sanding is appropriate for the application.