Product Details:
| Minimum Order Quantity | 100 Kg |
| Color | Pure White |
| Material | Aluminium Oxide |
| Brand | Astrra Chemicals |
| Density | 3.95 g/cm3 |
| Sizes | Grit - 220 |
| Packaging Type | Brand New HDPE BAGS |
| Molar Mass | 101.96 g/mol |
| Formula | Al2O3 |
| Boiling point | 2,977 Deg C |
Aluminium Oxide Powder White (Grade - 400 M) is a high-purity, fine-micronized abrasive material with excellent hardness and thermal stability. It is widely used in polishing and other industrial applications due to its physical and chemical properties.
🔹 USES & APPLICATIONS of Aluminium Oxide Powder White (Grade - 400 M) ✅ 1. Polishing & LappingUsed for fine polishing and lapping of metals, glass, ceramics, and semiconductors.
Ideal for mirror finishing in optical components and precision instruments.
Used in jewelry and watch polishing due to its fine abrasive quality.
Acts as a micro-abrasive in coated abrasives, non-woven pads, and polishing compounds.
Used in abrasive pastes, slurries, and suspensions for surface refinement.
Added as a raw material in high-alumina refractory formulations for better wear resistance and thermal stability.
Used in casting molds for high-temperature alloys.
Used in the production of technical ceramics, where purity and particle size control are essential.
Helps improve density, strength, and thermal resistance in finished ceramics.
Utilized for surface roughening before coatings or plating.
Helps enhance adhesion of paints and coatings in automotive, aerospace, and electronics.
Used in CMP (Chemical Mechanical Polishing) for silicon wafers.
Suitable for thin-film polishing and surface conditioning.
Used as a standard abrasive in laboratory-scale experiments.
Employed in materials testing and tribology studies for wear analysis.
Included in dental polishing pastes and compounds.
Used in orthopedic and prosthetic surface finishing.
Purity: High (>99%)
Particle Size: Micronized to 400 mesh (fine powder)
Color: White
Mohs Hardness: ~9 (second only to diamond)
Non-reactive, chemically stable, and heat-resistant
Additional Information:
Product Details:
| Minimum Order Quantity | 50 Kg |
| Grit Size | 36 mesh |
| Material | COURSE |
| Alumina Purity | 95 % |
| Grade | Brown |
| Form | GRIT |
| Brand | Astrra Chemicals |
| Density | 3.95 g/cm3 |
| Sizes | GRIT SIZES |
| Color | Brown |
| Melting Point | 2,072 Deg C |
| Formula | Al2O3 |
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:
| Minimum Order Quantity | 100 Kg |
| Purity | 99 % |
| Grit Size | F36 |
| Form | grit |
| Packaging Size | 50 Kgs Bags |
| Packaging Type | Bags |
| Material | Aluminium Oxide |
| Grade | 30 M Grit |
| Sizes | Grit - 30M |
| Color | Pure White |
| Brand | Astrra |
| Usage/Application | Blasting |
Aluminium Oxide White (Grit 80M) — also known as White Fused Alumina (WFA) — is a high-purity abrasive made from fusing alumina (Al₂O₃) in electric arc furnaces. The "Grit 80M"
�� Key Properties of Aluminium Oxide White (80M Grit)Hardness: ~9 on the Mohs scale (second only to diamond)
Purity: >99% Al₂O₃ (low iron content)
Color: White (non-contaminating)
Chemically inert and corrosion-resistant
High melting point: ~2,050°C
Primary Use: Grit blasting for cleaning, deburring, and etching surfaces (especially non-ferrous metals).
Why Use White Grit:
Non-contaminating (ideal for stainless steel, aluminum, titanium)
Produces uniform surface profile
Leaves no residues, ideal for pre-coating treatments
Cleaning turbine blades, engine parts
Surface prep for plasma spray coating, painting, or adhesive bonding
Matting glass or ceramic surfaces
Used in:
Grinding wheels
Sanding belts
Lapping compounds
Polishing pastes
80M Grit is suitable for medium-to-fine surface finishes on:
Steel tools
Glass components
Precious metals
Ceramic parts
As filler or raw material in high-performance ceramics and refractory bricks due to:
High melting point
Thermal shock resistance
Applications:
Kiln furniture
Crucibles
Insulating bricks
Alumina grit is embedded into epoxy coatings, resin floors, or tiles to improve:
Abrasion resistance
Anti-slip properties
Grit 80M offers a balance between grip and cleanability.
Used in decorative laminates (e.g., countertops, panels) for:
Surface hardness
Scratch resistance
Improved durability
Additional Information:
Product Details:
| Minimum Order Quantity | 100 Kg |
| Brand | Astrra |
| Material | Aluminium Oxide ( Grit ) |
| Color | Pure White |
| Sizes | Grit - 80 |
| Packaging Type | HDPE BAGS |
| Application | Blasting |
| Assay | 95% Min |
| Form | Grit |
| Packing Size | 50 Kgs Bags |
Aluminium Oxide White (Grit 80M) — also known as White Fused Alumina (WFA) — is a high-purity abrasive made from fusing alumina (Al₂O₃) in electric arc furnaces. The "Grit 80M"
�� Key Properties of Aluminium Oxide White (80M Grit)Hardness: ~9 on the Mohs scale (second only to diamond)
Purity: >99% Al₂O₃ (low iron content)
Color: White (non-contaminating)
Chemically inert and corrosion-resistant
High melting point: ~2,050°C
Primary Use: Grit blasting for cleaning, deburring, and etching surfaces (especially non-ferrous metals).
Why Use White Grit:
Non-contaminating (ideal for stainless steel, aluminum, titanium)
Produces uniform surface profile
Leaves no residues, ideal for pre-coating treatments
Cleaning turbine blades, engine parts
Surface prep for plasma spray coating, painting, or adhesive bonding
Matting glass or ceramic surfaces
Used in:
Grinding wheels
Sanding belts
Lapping compounds
Polishing pastes
80M Grit is suitable for medium-to-fine surface finishes on:
Steel tools
Glass components
Precious metals
Ceramic parts
As filler or raw material in high-performance ceramics and refractory bricks due to:
High melting point
Thermal shock resistance
Applications:
Kiln furniture
Crucibles
Insulating bricks
Alumina grit is embedded into epoxy coatings, resin floors, or tiles to improve:
Abrasion resistance
Anti-slip properties
Grit 80M offers a balance between grip and cleanability.
Used in decorative laminates (e.g., countertops, panels) for:
Surface hardness
Scratch resistance
Improved durability
Acts as a filter media in high-temperature or corrosive fluid systems where other materials fail.
Also used in water purification systems as a non-reactive, inert support layer.
Used as a shell material or mold additive in investment casting due to:
Thermal stability
Non-wettability with molten metals
Ensures smooth casting surfaces, especially in aerospace or medical applications.
Acts as a polishing agent in semiconductor wafer processing.
Sometimes used as an insulating material in ceramic substrates.
Additional Information:
Product Details:
| Minimum Order Quantity | 50 Kg |
| Grade Standard | INDUSTRIAL |
| Purity | 99% |
| Packaging Type | Bag |
Aluminum Hydroxide Powder (Al(OH)₃) is a versatile, fine white powder widely used in various industries for its flame retardant properties, as a filler, and for its chemical characteristics.
Here’s a brief overview of the uses and applications of Aluminum Hydroxide Powder:
1. Flame RetardantPurpose: Fire retardant additive.
Applications:
Used in plastics, rubber, textiles, and coatings as a flame retardant.
Releases water vapor when heated, which cools the material and dilutes flammable gases, reducing fire spread.
Often used in electrical cables, insulation materials, and construction products for fire safety.
Purpose: Antacid and medical excipient.
Applications:
Used as an antacid to neutralize stomach acid and treat indigestion.
Acts as a pharmaceutical excipient and absorbent in medicines.
Purpose: Flocculant and purifier.
Applications:
Used in water purification processes as a flocculating agent to remove impurities.
Helps in treating wastewater and drinking water.
Purpose: Filler and pigment extender.
Applications:
Used as a white filler to improve paint opacity, durability, and weather resistance.
Enhances mechanical properties and surface finish.
Purpose: Filler and flame retardant.
Applications:
Incorporated in rubber formulations to improve fire resistance and mechanical strength.
Helps reduce production costs.
Purpose: Filler.
Applications:
Used as a filler to improve paper brightness, smoothness, and printability.
Purpose: Absorbent and opacifying agent.
Applications:
Used in powders and creams to absorb moisture and improve texture.
Non-toxic and environmentally safe.
Acts as an effective flame retardant by releasing water on heating.
Chemically stable and inert.
Enhances mechanical and optical properties in formulations.
Additional Information: