Silverline Flap Sanding Grinding Disc 100mm 40 Grit 598448

Silverline Flap Sanding Grinding Disc 100mm 40 Grit - Aluminium Oxide

MPN: 598448

Barcode: 5055058125835

Overview:

The Silverline 100mm 40 Grit Aluminium Oxide Flap Sanding Grinding Disc 598448 a heavy-duty flap disc built for fast stock removal, aggressive sanding and efficient surface preparation. Manufactured from aluminium oxide abrasive cloth bonded to a tough fibreglass backing disc, it delivers reliable cutting performance with a self-renewing flap design that helps maintain effectiveness as the disc wears. Ideal for grinding, sanding and finishing tasks such as weld dressing and deburring, it’s suitable for use on steel, cast iron, alloys, wood and more (task dependent). The disc fits directly to a compatible angle grinder with no additional backing plate required, keeping set-up quick and simple.

Key Features

• Coarse 40 grit for rapid material removal and heavy preparation

• Aluminium oxide abrasive cloth for consistent, hard-wearing performance

• Fibreglass backing disc for strength and stability during use

• Self-renewing flap design for long service life

• Suitable for grinding, sanding, finishing, stock removal and weld dressing

• Fits directly to a compatible angle grinder with no backing plate required

• Designed to outlast conventional resin discs in demanding applications

Specifications

• Brand: Silverline

• MPN: 598448

• Barcode: 5055058125835

• Disc Diameter: 100mm

• Grit: 40 grit

• Abrasive Type: Aluminium oxide

• Disc Type: Flap sanding/grinding disc

• Backing: Fibreglass backing disc

• Backing Plate Required: No

Applications

• Fast stock removal and shaping

• Weld dressing and grinding clean-up

• Deburring edges and blending profiles

• Surface preparation on steel, cast iron and alloys

• General sanding/grinding on wood and other materials (task dependent)

How to Use

• Check your angle grinder and guard are suitable for a 100mm flap disc

• Fit the disc securely following the grinder manufacturer instructions

• Allow the grinder to reach full speed before contacting the workpiece

• Use steady, controlled pressure and keep the disc moving to reduce heat build-up

• Move up to 60 or 80 grit for smoother refinement after initial removal

Grit Grades Available

• 40 grit (coarse)

• 60 grit

• 80 grit

Grit Explanation:

40 grit is coarse, making it ideal for aggressive material removal, while higher grits (up to 120 grit) offer a finer finish for delicate sanding tasks.

Silverline 100mm 40g Aluminium Oxide Flap Disc – Key FAQs

• What is 40 grit best used for on a flap disc?
  40 grit is a coarse abrasive designed for aggressive removal—ideal for fast stock removal, weld dressing and heavy surface preparation before refining with finer grades.

• Do I need a backing plate with the Silverline 598448 flap disc?
  No. This disc fits directly onto a compatible angle grinder, so there’s no additional backing plate required for use.

• What materials can I use this flap disc on?
  It’s suitable for steel, cast iron and alloys, and can also be used on materials like wood depending on the task and the finish required.

• Why choose a flap disc over resin fibre discs?
  Flap discs can grind and blend at the same time and often last longer, reducing disc changes and helping leave a more controlled finish.

• Which grit should I use after 40 grit?
  Move to 60 grit for general grinding and blending, then 80 grit when you want a smoother finish prior to painting or coating.

• How do grit grades work for flap discs?
  Lower numbers are coarser for faster removal, while higher numbers are finer for finishing. This disc is 40 grit, which is at the coarse end of the range.

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