Klingspor 342849 NPA 400 Non-Woven Abrasive Sheet, 152 x 229 mm, Very Fine Aluminum Oxide, 20-Pack

For fine surface preparation and a uniform matte finish, the Klingspor NPA 400 non-woven abrasive sheet delivers controlled material removal without clogging. Its open, flexible structure conforms effortlessly to contours, making it ideal for cleaning, deburring, and finishing on metals, wood, plastics, paint, and composites. The very fine aluminum oxide grain paired with a resin bonding ensures consistent results, whether used wet or dry, by hand or with a sanding block.

Highlights

• Very fine aluminum oxide (NPA 400) for gentle, controlled abrasion
• Open, clog-resistant non-woven structure for long service life
• Highly flexible sheet adapts to curved and irregular surfaces
• Suitable for wet and dry applications on multiple materials
• Uniform matte finish with minimal risk of gouging
• Pack of 20 sheets, each 152 x 229 mm

In daily use

These sheets excel in surface preparation, matting, and fine finishing tasks. Use them to remove light rust, oxidation, or paint residues, or to create a consistent satin appearance on stainless steel and aluminum. The non-woven construction resists loading, so the abrasive stays effective longer, and the flexible backing prevents edge cutting on delicate profiles. For manual sanding, simply fold or wrap the sheet around a hand block; for wet work, rinse periodically to maintain cutting performance.

Full specifications

• Abrasive material: Aluminum oxide (Korund)
• Grit grade: Very fine (NPA 400)
• Product type: Non-woven abrasive sheet
• Sheet dimensions (L x W): 229 x 152 mm
• Quantity per pack: 20 pieces
• Series: NPA 400
• Bonding agent: Resin
• Application area: Surface preparation, matting, cleaning, deburring, fine finishing
• Suitable materials: Metals (stainless steel, aluminum, non-ferrous), wood, plastics, paint, varnish, composites
• Structure: Open structure, clog-resistant
• Flexibility: Highly flexible, adaptable to contours
• Usage method: Manual sanding, compatible with hand blocks
• Colour: Grey
• Wet/dry use: Suitable for both wet and dry applications
• Material removal rate: Gentle and controlled
• Surface finish achieved: Uniform, matte finish
• Durability: Long service life with even wear

Final note

Klingspor's NPA 400 sheets are a dependable choice for professionals who need consistent, fine finishing on a variety of substrates without the risk of deep scratches or premature loading.