White Fused Alumina Blast Media (Aluminium Oxide / Corundum)

Overview Key Features Typical Applications Benefits Technical Information Grades & Supply Safety & Handling High-Purity Aluminium Oxide for Precision Blasting White fused alumina is aluminium oxide blast grit engineered for sharp cutting action, purity, and consistency. Its highly angular grain structure delivers aggressive material removal while maintaining strict contamination control. Suitable for ferrous and non-ferrous materials in wet or dry blasting systems. White fused alumina is selected where purity and cutting sharpness are more important than abrasive life. For tougher, more economical blasting with extended reuse, brown fused alumina is recommended. Key Features Ultra-high purity aluminium oxide (>99% Al₂O₃) Extremely sharp, angular grain structure Iron-free – safe for contamination-sensitive applications Consistent cutting performance Suitable for ferrous and non-ferrous substrates Compatible with wet and dry blasting systems Typical Applications Aerospace component surface preparation Medical and surgical tooling Precision steel and carbide tools Hard alloys requiring aggressive cutting Applications where iron contamination must be avoided Its sharp grain structure allows precise surface preparation with minimal risk of cross-contamination. Why Choose White vs Brown or Pink Alumina Maximum cutting sharpness Zero ferrous contamination risk Ideal for sensitive alloys and high-specification work White fused alumina prioritises purity and cutting efficiency over abrasive toughness. It is the preferred choice where surface cleanliness and material integrity matter more than abrasive reuse life (brown alumina) or balanced performance (pink alumina). Technical Information – White Fused Alumina Technical Properties Property Typical Value Chemical composition >99% Aluminium Oxide (Al₂O₃) Hardness Approx. 9.0 Mohs Specific gravity ~3.9 – 4.1 g/cm³ Bulk density ~1.5 – 1.9 g/cm³ Melting point ~2050°C Grain shape Angular Relative toughness Moderate Contamination risk None (iron-free) Suitable systems Wet & dry blast cabinets Compatible with pressure, suction, and cabinet blasting systems. Chemical Analysis Component Typical % Al₂O₃ 99.73% Na₂O 0.14% Fe₂O₃ 0.03% SiO₂ 0.01% CaO 0.02% TiO₂ 0.02% MgO 0.01% Approvals & Standards Supplied for use in aerospace, medical, and precision engineering environments (where applicable) FEPA F & FEPA P grit standards Suitable for applications requiring iron-free abrasives Certificates of conformity available on request. Grades & Supply FEPA macro and micro grades Supplied in 25 kg bags UK stock, 3–5 working day delivery FEPA grit sizes define the particle size distribution of fused alumina abrasives. Lower FEPA numbers correspond to coarser grains and more aggressive cutting, while higher FEPA numbers produce finer surface finishes and reduced material removal. FEPA Grit Sizes & Approximate Particle Diameter FEPA Grade Approx. Particle Size (µm) F 008 2000 – 2800 F 010 1700 – 2360 F 012 1400 – 2000 F 014 1180 – 1700 F 016 1000 – 1400 F 020 850 – 1180 F 022 710 – 1000 F 024 600 – 850 F 030 500 – 710 F 036 425 – 600 F 040 355 – 500 F 046 300 – 425 F 054 250 – 355 F 060 212 – 300 F 070 180 – 250 F 080 150 – 212 F 090 125 – 180 F 100 106 – 150 F 120 90 – 125 F 150 63 – 106 F 180 53 – 90 F 220 45 – 75 Please enquire for micro grade options. Coarser FEPA grades are typically used for heavy rust removal and profiling, while finer grades are selected where controlled surface finish or reduced material removal is required. Unsure which grit size is right for your application? – Contact usOur technical team can advise on media selection based on substrate, finish, and blasting system. Safety & Handling White fused alumina is non-toxic, non-hazardous, and free from silica. No special disposal precautions are required for the material as supplied; users should consider contamination introduced during use.