Abracs PRO Zirconium Flap Disc

The Abracs PRO Zirconium Flap Disc is a high‑performance abrasive flap disc
designed for rapid stock removal and blending on mild steel, stainless (INOX) and alloys.
Using premium zirconium abrasive cloth on a durable backing, these discs deliver
long life, aggressive grinding and a smooth finish in one step. Ideal for
welders, fabricators, engineers, maintenance teams and metalworkers using angle grinders.

Abracs PRO Zirconium Flap Discs are constructed from overlapping zirconium abrasive flaps
bonded to a strong backing (often fibreglass or similar composite). As the disc wears, new
sharp abrasive grain is continually exposed, giving a consistent cut and finish over the
life of the disc.

Designed for use on angle grinders, these discs are suitable for:

• Weld seam removal and dressing,
• Edge grinding and chamfering,
• Surface preparation prior to painting or coating,
• Deburring, rust and scale removal,
• Blending and smoothing ground areas.

Zirconium abrasive is particularly effective on ferrous metals, making Abracs PRO Zirconium Flap Discs
ideal for:

• Mild steel & carbon steel,
• Stainless steel (INOX),
• Welds on structural and stainless fabrications,
• Many general engineering steels and alloys.

Typical Use Cases

• Welders & fabricators – grinding down butt and fillet welds, blending
  joints and preparing edges.
• Steelwork & site fabrication – cleaning cut edges, plates, beams and box sections.
• Stainless fabrication – finishing handrails, balustrades, frames and tanks (using suitable grits).
• Maintenance & repair – removing rust, scale, old coatings and burrs from steel components.
• General metalworking – shaping, chamfering and surface conditioning before painting or coating.

Application & Usage Tips

• Tool compatibility:
  • Use on angle grinders with matching disc diameter (e.g. 115mm, 125mm, 180mm) and
    22.23 mm bore or suitable flange.
  • Ensure the grinder’s no‑load RPM does not exceed the disc’s maximum rated speed
    printed on the label.
• Grit selection:
  • 36 / 40 grit: Heavy stock removal, weld grinding, shaping.
  • 60 grit: General-purpose grinding and blending.
  • 80 / 120 grit: Finer finishing, surface smoothing before paint/powder coat.
• Grinding technique:
  • Use a 10–15° angle between disc and workpiece for effective grinding and flap wear.
  • Apply moderate, even pressure – let the abrasive do the work; excessive pressure reduces disc life.
  • Keep the disc moving to avoid gouging and overheating the workpiece.
• Workpiece & material:
  • Primarily designed for steel and stainless steel; can also be used on some non‑ferrous
    metals with care (avoid loading/soft metal smearing).
  • Do not use on wood or plastics at high speed – risk of burning or clogging.
• Safety:
  • Always wear appropriate PPE: safety goggles or face shield, hearing protection,
    gloves and suitable clothing.
  • Use the grinder’s safety guard correctly positioned between you and the disc.
  • Inspect discs before use; do not use discs that are cracked, damaged or out of date.

Technical & Performance Overview

Abracs PRO Zirconium Flap Discs are manufactured to professional standards and typically comply with
EN 13743 for coated abrasive products. Exact specifications (diameter, grit, backing type) vary
by product option – always refer to the individual disc label and Abracs technical data.

• Brand: Abracs
• Range: PRO – professional-grade abrasives.
• Product type: Zirconium flap disc for angle grinders.
• Abrasive grain: Zirconium oxide for aggressive cutting and long life.
• Grits available: Commonly 40, 60, 80, 120 (and others – check product listing).
• Diameters: Typical sizes 115mm, 125mm, 180mm (verify specific item).
• Bore: 22.23 mm (standard for most angle grinders).
• Disc type: Generally Type 27 (flat) or Type 29 (conical) – see specific model.
• Backing: Fibreglass or composite backing for strength and safety.
• Max operating speed: Marked on disc (e.g. up to 13,300 rpm @ 115mm,
  12,200 rpm @ 125mm, 8,500 rpm @ 180mm – always confirm on label).
• Suitable materials: Mild steel, stainless steel, general ferrous metals;
  also suitable for welds, edges and surface prep.
• Standards: Produced in accordance with or tested to EN 13743 and Abracs
  quality controls for safety and performance.
• Storage: Store flat in a dry, cool place, away from moisture, excessive heat and impact.

Abracs PRO Zirconium Flap Disc Features & Customer Benefits

• Aggressive yet controllable grinding
  Zirconium grain and flap design provide fast material removal while still allowing
  controlled blending of welds and surfaces.
• Long life on steel & stainless
  PRO-grade construction gives improved durability versus standard flap discs, reducing change‑overs on site.
• One disc for grind & finish
  Eliminates the need to switch between grinding discs and fibre discs for many jobs, improving productivity.
• Consistent finish
  As flaps wear, fresh abrasive is exposed, delivering a more uniform surface finish compared with traditional grinding wheels.
• Trusted Abracs brand
  Part of the Abracs PRO range, widely used by fabricators and contractors across the industry.

Frequently Asked Questions – Abracs PRO Zirconium Flap Disc

1. What materials are these flap discs best suited for?

Abracs PRO Zirconium Flap Discs are designed primarily for:

• Mild/carbon steel,
• Stainless steel (INOX),
• General ferrous metals and welds.

They are not optimised for aluminium or very soft metals (which can clog the disc) or for
wood/plastics at high speeds.

2. Should I choose a flat (Type 27) or conical (Type 29) flap disc?

General guidance:

• Type 27 (flat): Better for flat surface grinding and blending.
• Type 29 (conical): Better for aggressive stock removal, edges and welds, offering a more focused contact area.

Check the specific Abracs PRO Zirconium Flap Disc type in the product description.

3. How do I choose the right grit?

It depends on the job:

• Heavy weld removal / shaping: 36–40 grit.
• General grinding & blending: 60 grit.
• Finer finishing / pre-paint prep: 80–120 grit.

4. Can I use these discs on stainless steel?

Yes. Zirconium flap discs are suitable for stainless steel (INOX) and are commonly used for:

• Grinding and blending stainless welds,
• Finishing handrails, boxes, frames and tanks.

Use appropriate grits and avoid cross‑contamination with carbon steel if corrosion resistance is critical.

5. How long will a flap disc last?

Life depends on:

• Material type and thickness,
• Grit size,
• Contact pressure and angle,
• Grinder speed and operator technique.

Used correctly (moderate pressure, correct angle, appropriate speed), PRO Zirconium discs provide
significantly longer life than basic economy flap discs.

6. Common Uses & How to Use Abracs PRO Zirconium Flap Disc

Common Uses:

• Grinding and blending weld seams on structural steel and fabrications.
• Cleaning and preparing steel surfaces prior to painting or coating.
• Removing rust, scale and light imperfections from plate and profiles.
• Finishing stainless steel fabrications (with suitable grit).

How to Use – Step-by-Step:

1. Select the correct disc diameter and grit for your application.
2. Isolate power, fit the disc to the angle grinder, ensuring the bore and flanges are correct and the guard is in place.
3. Tighten the flange nut securely and check the disc runs true when briefly spun up.
4. Hold the grinder at around a 10–15° angle to the workpiece.
5. Start the grinder and bring the disc gently into contact, using steady, moderate pressure.
6. Move continuously along the work area to achieve an even grind and avoid overheating.
7. Allow the disc to stop completely before setting the grinder down or changing discs.