ALUMINIUM-OXIDE-GRIT/220 (25-kg-Bag)

White Fused Alumina High Purity Abrasive Media

Overview

White Fused Alumina is a premium-grade, iron-free abrasive engineered for demanding aerospace, medical, optical and industrial applications. Manufactured to extremely high purity levels with exceptional hardness and consistent grain sizing, it is ideal for precision blasting, grinding, wear protection and refractory applications. Available in macro and micro grain sizes down to 3 �m, it delivers reliable, repeatable performance where surface quality and contamination control are critical.

Key Technical Specs

• Product Type: White fused aluminium oxide abrasive
• Material: High purity fused alumina (Al?O?)
• Colour: White
• Hardness: 9 Mohs
• Grain Shape: Angular
• Melting Point: Approximately 2,050°C
• Specific Gravity: Approximately 3.9-4.1 g/cm�
• Bulk Density: Approximately 0.8-2.1 g/cm� (depending on grain size)
• Available Grain Sizes: Macro and micro grades from F008 to F1200 (down to 3 �m)

Approvals & Specifications

• FEPA F Standard
• FEPA P Standard
• EN ISO 11126-7
• DIN ISO 8486-1
• DIN 8201-6
• DIN EN 4637
• MIL A-A-59316
• ANSI B74-12
• JIS R6001
• DMR71-100
• NF L 06-828
• D50TF5 Class A (GE)

Performance Highlights

• Extremely high aluminium oxide purity (up to 99.73% Al?O?)
• Iron-free material suitable for contamination-sensitive applications
• Very high hardness for excellent cutting efficiency and long service life
• Excellent whiteness for precision blasting applications
• Angular grain provides aggressive and consistent surface preparation
• Available in a wide range of precisely controlled particle sizes
• Reusable abrasive for reduced operating costs

Typical Applications

• Aerospace component blasting
• Medical device manufacturing
• Optical component finishing
• Reusable dry and wet blasting media
• Bonded grinding wheels
• Loose grinding media
• Grinding media on backing materials
• Wear protection coatings
• Refractory products
• Electrical engineering
• Catalyst supports
• Thermosetting plastics

Compatibility & Safety Notes

• Suitable for pressure blast machines and injector blast cabinets
• Iron-free composition helps minimise contamination of sensitive components
• Available in macro and micro grain sizes to suit different applications
• Use a protective strainer when filling blasting equipment, as recommended by the manufacturer
• Select the appropriate grain size according to the required surface finish

Application & Curing

• Application Method: Dry or wet abrasive blasting
• Compatible Equipment: Pressure blast machines and injector blast cabinets
• Available Grain Range: FEPA F008 to F1200
• Metric Grain Sizes Available: 0.25-0.50 mm and 0.50-1.00 mm
• Custom grain sizes available upon request

Packaging & Procurement

• 25 kg and 20 kg sacks on pallets up to 1 tonne
• 1 tonne bulk bags (Big Bags)
• Additional grain sizes available on request

Why This Product is Chosen for AOG / MRO

• Approved by leading aerospace engine and aircraft manufacturers
• High purity minimises contamination of aerospace components
• Excellent consistency for repeatable blasting results
• Reusable media reduces operating costs
• Suitable for critical aerospace maintenance and overhaul operations

Practical Suggestions for Your Team

• Select the appropriate FEPA grain size for the required surface finish
• Use only clean blasting equipment to preserve material purity
• Install a protective strainer when filling blasting equipment
• Reuse abrasive where process specifications permit to maximise efficiency
• Store media in a clean, dry environment to prevent contamination

Manufacturer / Aviation Spec Codes

• Product Name: White Fused Alumina
• Manufacturer: Kuhmichel Abrasives
• Material: High Purity White Fused Aluminium Oxide
• Customer Approvals: PMC 3052 (Pratt & Whitney), CSS12 (Rolls-Royce), ABR 9-0160 (Airbus)
• Key Specifications: FEPA F & P, EN ISO 11126-7, MIL A-A-59316, ANSI B74-12, DIN EN 4637