Sandpaper Sheets Mentor K320 — wet/dry abrasive sheets, grit K320, pack contents unspecified

Mentor sandpaper sheets K320 are wet/dry abrasive sheets with a fine K320 grit designed for smoothing and finishing a variety of surfaces. The sheets are formulated for controlled material removal and consistent finish when working with wood, paint, primer, metal and plastics. Their wet/dry capability allows use with water or lubricants to reduce clogging and achieve a more uniform polished surface. Sheets are suitable for hand sanding and for use with sanding blocks for even pressure across the workpiece.

Advantages

The K320 grit provides fine abrasion that removes minor imperfections while preserving surface detail, making it appropriate for final sanding and preparation before coating or polishing. Wet/dry construction reduces dust and extends abrasive life when used with water, helps avoid heat buildup, and supports a smoother tactile finish. Sheets are thin and flexible for conforming to curved or irregular shapes and are compatible with common sanding blocks and hand sanding techniques.

Suitable for

• Final sanding of painted surfaces and primer
• Smoothing wood between finishing coats
• Deburring and light finishing of metal components
• Refining plastic parts before bonding or painting
• Automotive finishing and polishing preparation

Key specifications

• Abrasive grit: K320 (extra-fine)
• Wet/dry capability for use with water or lubricants
• Sheet form suitable for hand sanding and sanding blocks
• Flexible and thin backing to conform to contours
• Designed for use on wood, paint, primer, metal and plastics

How to use

Select the Mentor K320 sheet and, if needed, cut it to size to fit your sanding block or to suit detailed areas. For wet sanding, submerge the sheet briefly in water and keep the surface lubricated during sanding to minimize clogging and reduce heat. Sand with light, even pressure following the grain on wood or using gentle, consistent strokes on painted and metal surfaces. Rinse the abrasive and workpiece periodically to remove residue. Replace the sheet when the abrasive performance diminishes.

Usage recommendations

For best results on wood and paint, follow K320 sanding with a polishing compound or finer abrasive if a higher gloss is required. When working on automotive or metal components, use water or a suitable lubricant to extend abrasive life and prevent surface overheating. Always test on a small inconspicuous area to confirm desired finish before proceeding to the entire surface.