Product Details:
| Minimum Order Quantity | 100 Kg |
| Packaging Size | 25 kg/bag |
| Brand | Astrra Chemicals |
| Form | GRIT |
| Formula | Al2O3 |
| Boiling point | 2,977 Deg C |
| Density | 3.95 g/cm3 |
Uses and applications of Brown Aluminium Oxide (also known as Brown Fused Alumina or BFA) across various industries:
🔶 What is Brown Aluminium Oxide?Brown Aluminium Oxide is a hard, tough, and durable abrasive material made by fusing bauxite in an electric arc furnace. It consists mainly of Aluminum Oxide (Al₂O₃) with a small percentage of Titania (TiO₂) and other impurities.
Hardness: ~9 on Mohs scale
Color: Brown
Melting Point: ~2,050°C
Typical Grit Sizes: F12 to F220 (macro), F240 to F1200 (micro)
Grinding wheels: Used in resin-bonded and vitrified wheels for grinding hardened steel, alloy steel, and cast iron.
Sandpaper & abrasive cloth: Ideal for both wet and dry applications.
Blasting media: For surface preparation, rust removal, and finishing of metals, concrete, and composites.
Polishing: Suitable for rough and intermediate polishing operations.
Refractory bricks & castables: Used in linings for furnaces, kilns, and incinerators due to its high heat resistance.
Ceramic shapes & tiles: In applications requiring thermal stability and abrasion resistance.
Shot blasting and sandblasting: For cleaning, deburring, and roughening surfaces before coating or painting.
Etching & frosting of glass: Achieves decorative or functional textures.
Lapping & honing: In precision metal finishing.
Tool sharpening: Used in stones and belts for sharpening cutting tools.
Used in floor coatings, runways, and steps for enhancing traction and preventing slips.
As a raw material additive to improve wear resistance and strength of ceramics.
Sometimes used as a media in industrial filtration systems, especially for high-speed filtration of contaminants.
High hardness and toughness
Reusable in blasting applications
Thermally stable at high temperatures
Electrically non-conductive
Cost-effective compared to White Fused Alumina
Additional Information:
Product Details:
| Packaging Size | 50 Kg |
| Grade | industrial grade |
| Color | Black |
| Country of Origin | Made in India |
Micaceous Iron Oxide (MIO) Powder is a naturally occurring mineral form of iron oxide (Fe₂O₃) with a lamellar, flaky (mica-like) structure. It is primarily used in protective coatings and anticorrosive applications, thanks to its outstanding weather resistance, UV stability, and barrier properties.
Below is a detailed overview of uses and applications of Micaceous Iron Oxide powder across various industries:
🔍 Key Properties of Micaceous Iron Oxide (MIO)Chemical Formula: Fe₂O₃ (hematite)
Flaky Lamellar Structure: Provides barrier effect in coatings, similar to mica or graphite.
High Weatherability: Resistant to UV, water, and chemicals.
Non-toxic and Inert: Safe for long-term use in infrastructure and marine environments.
Excellent Adhesion: Especially to metal surfaces.
Function: Acts as a barrier pigment in protective paints to prevent moisture and oxygen from reaching the metal surface.
Application Areas:
Bridges
Steel buildings
Oil platforms
Chemical plants
Benefit: Greatly extends the life of steel structures.
Used in marine coatings where salt spray, high humidity, and UV are concerns.
Marine primers and mid-coats often use MIO due to its excellent corrosion resistance.
MIO coatings protect against weathering and mechanical wear in exposed conditions.
MIO is used in coatings applied to concrete structures, especially in coastal or industrial environments.
Provides protection against carbonation and chloride penetration.
Adds a textured metallic look and improves durability in high-end paints for facades and monuments.
Coatings containing MIO are used for underground and underwater pipelines.
In storage tanks, especially those storing water, oil, or chemicals, MIO helps form a tough, impermeable layer.
Heavy machinery, transformers, industrial equipment: MIO paints resist harsh factory conditions, UV exposure, and high temperatures.
MIO is used in environmentally exposed metallic structures (e.g., coastal areas, industrial belts) to meet corrosion category C4 and C5 protection standards (ISO 12944).
Especially effective in multi-coat paint systems, often as a middle coat between zinc-rich primers and topcoats.
In art and heritage restoration, MIO’s natural metallic luster is used to replicate historical finishes and give antique looks.
Micaceous iron oxide nanoparticles are being researched for:
Magnetic materials
Catalytic applications
Composite fillers in resins and plastics
Product Details:
| Grit Size | 36 |
| Form | Grains |
| Usage | Emery Paper |
| Packaging Size | 50 Kgs |
| Material | Brown Aluminium Oxide |
| Purity | 99% |
| Color | Brown |
| Usage/Application | Abrasive |
Brown Fused Aluminium Oxide (BFA) is a highly durable and tough abrasive made by fusing bauxite in an electric arc furnace. It is commonly used in emery applications due to its excellent hardness (Mohs ~9), thermal resistance, and sharp cutting ability.
✅ Uses & Applications of Brown Fused Aluminium Oxide for Emery Applications 1. Abrasive Papers & Emery ClothsUsed as the primary abrasive in emery paper, emery cloth, and abrasive rolls.
Suitable for grinding, polishing, and surface finishing of metals, wood, plastic, and ceramics.
Offers consistent grain size and sharp cutting edges, enhancing surface finishing quality.
Coated onto flexible backings (paper, cloth, or film) for sanding belts, sheets, and discs.
Ideal for manual and machine sanding processes in metal fabrication, woodworking, and automotive sectors.
Used in the manufacture of grinding wheels and cutting discs.
Performs well in heavy-duty grinding applications for carbon steel, alloy steel, and cast iron.
Embedded into emery boards and nail files in the cosmetic and personal care industry.
Also used in hand-held abrasive tools for fine finishing or deburring.
Employed in the preparation of surfaces before painting or coating (metal degreasing and rust removal).
Used in grit blasting or shot blasting where consistent surface texture is needed.
Used in lapping compounds and honing tools where precision material removal is required on flat or cylindrical surfaces.
Sometimes added to anti-slip surfaces and high-wear flooring tiles due to its extreme hardness.
High hardness (~Mohs 9)
High thermal resistance
Angular shape for aggressive cutting
Reusable in blasting and durable in bonded/ coated tools
Chemically stable and resistant to corrosion