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43275 - Pferd Polivlies Non-Woven Flap Disc 4.5 Inch 240 Grit Aluminum Finish

Packaging: 5 pc per Box
$18.58/ea $58.05/5 pc per Box only $11.61/eaSave 38%

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SKU: PFE43275 Categories: ,

OVERVIEW

Precision Surface Finishing for Aluminum

The Pferd 43275 Polivlies Flap Disc represents a specialized solution for industrial surface conditioning, specifically engineered for working with aluminum and other non-ferrous metals. This 4-1/2" x 3/4" abrasive tool utilizes Pferd's proprietary Polivlies technology, a non-woven polyamide fiber matrix impregnated with abrasive grain. Unlike traditional coated abrasive flap discs designed for stock removal, this tool is optimized for surface refinement, blending, and finishing.

With a 240 grit rating, this disc is positioned for fine finishing applications where surface roughness (Ra) requirements are strict. The non-woven structure offers a distinct advantage in thermal management; the open mesh design allows for significant airflow, keeping the grinding zone cool. This is critical when working with aluminum, which is susceptible to heat discoloration and warping. Furthermore, the flexibility of the flaps allows the disc to contour to the workpiece, preventing undercutting and ensuring that the geometric integrity of the part is maintained.

Industrial operators will appreciate the consistency provided by the Polivlies material. As the disc wears, fresh abrasive grain is continuously exposed, ensuring that the finish quality remains uniform from the first pass to the last. This specific SKU features a 3/4" arbor, making it compatible with specific grinding tools requiring this bore size. It serves as an excellent final step in a multi-stage finishing process or as a single-step solution for cleaning and satin-finishing aluminum surfaces.

Additional Information
Brand:Pferd
Diameter:4.5"
Arbor (in):3/4"
Grit:240
Used To Grind:Aluminum
Item:Grinder
Material:Non-Woven Polyamide
Series:Polivlies
Grain Type:Aluminum Oxide
Max RPM:13300
Packaging Description:5 pc per Box

INCLUDED

  • 1 x Pferd Polivlies Flap Disc (4-1/2" x 3/4", 240 Grit)

APPLICATIONS

  • Surface finishing on aluminum and non-ferrous metals
  • Blending light scratches and tool marks
  • Pre-polishing surfaces before buffing
  • Cleaning oxidation and discoloration
  • Satin finishing on architectural metalwork
  • Deburring edges without changing geometry

FAQ

Regular flap discs use coated abrasive cloth designed for stock removal and grinding. This Polivlies disc uses a non-woven nylon mesh for surface conditioning, finishing, and polishing without removing significant material.

While it is optimized for aluminum to prevent loading, the abrasive grain can work on steel. However, for steel applications, specific Polivlies discs for steel might offer better longevity.

This specific disc has a 3/4" arbor hole. Please verify your tool's spindle size before purchasing, as standard angle grinders often use 7/8" or 5/8"-11 connections.

240 grit is considered a fine grade. It produces a smooth, satin finish and is excellent for blending fine scratches or preparing a surface for a mirror polish.

The open structure of the non-woven material is specifically designed to resist loading and clogging, which is a common issue with standard abrasives on soft metals like aluminum.

No, this is a flap disc with an integrated backing plate (usually fiberglass), so it mounts directly to the tool without an additional backing pad.

Always check the label on the disc itself, but generally, 4-1/2" non-woven flap discs are rated for around 13,300 RPM, though they often perform best at lower speeds for finishing.

No, this is a finishing tool. You should use a coarse grinding wheel or standard flap disc (e.g., 40 or 60 grit) to remove the weld first, then use this disc to blend and finish the surface.