Fumed Alumina — Pyrogenic Aluminium Oxide
Fumed alumina is a pyrogenic aluminium oxide with high specific surface area and a positively charged surface, used as a rheology, abrasion and charge-control additive. Allzone supplies it to Canadian specialty formulators with the grade confirmed against supplier documentation.
At a glance
- Product
- Fumed Alumina
- Grades
- Pyrogenic Aluminium Oxide
- Typical applications
- Scratch and abrasion resistance in coatings and hard coats · Inkjet receiving media and toner charge control · Chemical mechanical polishing slurries
- Packaging
- Packaging confirmed at quotation
- • Certificate of Analysis is provided against the confirmed shipment, grade and batch.
- • Manufacturer TDS and SDS are subject to grade and supplier confirmation and are available on request.
- • Grades, packaging and origin above are indicative sourcing options and are confirmed at quotation.
Available grades from container-direct sourcing
Pyrogenic Aluminium Oxide
Grade and specification confirmed against supplier technical data sheet at quotation.
Typical applications
- Scratch and abrasion resistance in coatings and hard coats
- Inkjet receiving media and toner charge control
- Chemical mechanical polishing slurries
- Thermally conductive and reinforcement filled systems
Why Canadian buyers choose us
- Container-direct sourcing coordinated through our Ontario logistics partner
- Supplier documentation (TDS, SDS, COA) requested and shared before order confirmation
- Specifications confirmed in writing at quotation stage — no assumed values
- LTL and FTL freight across Ontario, Quebec and Western Canada
- Quantities reviewed per enquiry, from smaller lots to full container loads
Typical industries served
Material identity
Fumed alumina (pyrogenic aluminium oxide) — identifiers and the names buyers use
- Chemistry
- Aluminium oxide (Al2O3), pyrogenic route
- Forms offered
- Powder and dispersion
- Surface area / addition rate
- UNKNOWN — declared per grade and confirmed against supplier documentation
Also searched as
Industry terminology
Identifiers are published for material identification. The exact specification of any offered grade is confirmed against supplier documentation at quotation.
Buyer intent coverage
Fumed alumina (pyrogenic aluminium oxide) — what it is, where it is used, how it is chosen
Fumed alumina is the harder relative of fumed silica. Formulators reach for it when a cured film has to survive abrasion — flooring finishes, furniture coatings, UV-cured hard coats — because the alumina particles carry hardness into the surface layer. It also contributes rheology and charge behaviour in liquid systems and thermal conductivity in filled adhesives, which is why it appears in electronics-adjacent formulations as well as coatings.
Primary uses
- Improving scratch and abrasion resistance in cured coatings
- Adding hardness to UV-cured hard-coat layers
- Contributing thermal conductivity in filled adhesive and potting systems
- Rheology and charge control in liquid systems
Applications
- Wood, floor and industrial coating manufacture
- UV-curable coatings and inks
- Polishing and fine-abrasive slurries
- Thermally conductive adhesives and potting compounds
Advantages
- Delivers surface hardness that silica-based additives cannot
- Works in UV-cured systems where thermal cure options are unavailable
- Available as a dispersion, which removes the hardest part of using it
Limitations to consider
- Hardness cuts both ways: it increases wear on mills, pumps and application equipment
- Requires high-energy dispersion to reach its performance
- Costs more than the silica additive it is often compared against
- Addition level and performance are established on your own material and equipment; supplier literature values are starting points for a trial, not a specification.
- Mineral powders create airborne dust during transfer and bagging. Respirable crystalline silica content varies by mineral and by grade, so it is treated as an SDS and workplace-controls question rather than a published figure, and the SDS for the exact grade offered is the governing document.
How to choose the right grade
- State the production route you need — fumed or precipitated — before comparing prices
- Say whether the grade must be hydrophilic or hydrophobic, because surface treatment changes the whole result
- Describe the system it goes into: a liquid resin, a solvent system, a water-based system or a dry powder
- Confirm what dispersion equipment you have, since these materials only perform once properly dispersed
- Confirm the regulatory status the finished product requires
- Fumed (pyrogenic) and precipitated silicas are different products made by different routes. They are not interchangeable, and an enquiry that does not state the route usually has to be re-quoted.
- Exact specification is confirmed against supplier documentation at quotation.
Typical grades
- Hydrophilic grade
- Surface-treated grade
- Dispersion / slurry grade
- Reference grade names circulate as shorthand in enquiries and are treated here as search language only. An equivalent is established by comparing declared datasheet values and running a trial; no grade is presented as a drop-in replacement for another.
Comparable materials — how Fumed alumina (pyrogenic aluminium oxide) sits against alternatives
- Fumed silica where thixotropy rather than hardness is required
- Ceramic microspheres for bulk abrasion resistance
- Wax additives for slip without hardness
- Buyers looking for an alternative or second-source supplier should state the incumbent grade and the property being matched. Mineral fillers are rarely interchangeable on name alone: comparison depends on declared datasheet values and on a plant trial.
Comparable-material reference. Grade selection is confirmed at RFQ against your process.
Procurement coverage
How to specify, order and receive Fumed alumina (pyrogenic aluminium oxide)
Written for procurement, quality and technical buyers in Canada and the United States. No numeric price, MOQ, stock or lead-time value is published — those are confirmed per shipment in the quotation and against the confirmed batch.
How buyers specify at RFQ
- Production route — fumed (pyrogenic) or precipitated
- Surface area and structure as declared by the supplier for the exact grade
- Hydrophilic or hydrophobic (surface-treated) status
- Physical form — fluffy powder, densified powder, granules or dispersion
- Behaviour after dispersion in your specific system
- Regulatory status of the exact grade for the intended use
Packaging options (industry-standard)
- Bag or box format sized for dosing-unit refills rather than bulk intake
- Moisture-barrier or lined packaging where the additive is itself moisture sensitive
- Jumbo / FIBC bag where continuous dosing volumes justify it
- Packaging options and available pack sizes are confirmed with each quotation.
Storage & handling
- Store cool, dry and closed; these additives work by surface behaviour, and moisture pick-up removes the effect you paid for
- Keep containers closed between doses to avoid contamination and unnecessary dust exposure
- Use first-in, first-out rotation and respect any retest date declared on the batch
Documentation available
- Technical data sheet (TDS) stating the production route (fumed or precipitated), the declared surface area and the hydrophilic or hydrophobic status
- Safety data sheet (SDS) in the format required for Canadian import
- Certificate of analysis (COA) against the confirmed batch
- Food-additive or regulatory declaration where the grade is used in a regulated powder
- Documentation is confirmed per batch at quotation; availability depends on the grade and supplier offered.
RFQ checklist for fumed-alumina-canada
Include these fields to receive an accurate Canada-landed quotation
- The material or system the mineral goes into, and the process it runs on
- The function you need it to perform and the problem you are trying to solve
- Particle size, brightness or purity window your specification calls for, in the convention your plant uses
- Annual volume and expected per-shipment quantity
- Packaging format your intake and feeding system can receive
- Documentation required per shipment
- Delivery province or port of discharge
- Production route required (fumed or precipitated)
- Hydrophilic or hydrophobic requirement
- Dispersion equipment available on your line
Technical & procurement detail
Functional role of fumed alumina+
Its combination of nanoscale aggregate structure, hardness and positive surface charge separates fumed alumina from other aluminium oxides. Formulators use it to raise scratch and abrasion resistance in coatings, to build thixotropy in polar systems, to control charge in toner and inkjet media, and to assist thermal conductivity in filled compounds.
Selecting the right grade+
Specific surface area and any surface modification are the practical selection variables, together with whether the material will be used as a dry powder or a predispersion. Dispersion energy strongly influences the result and should be considered part of the specification discussion.
Documentation and specification+
Properties differ between producers and between grades of the same material. Allzone confirms the applicable grade with the supplier before quoting and shares the technical data sheet and safety data sheet for the exact material offered, so the values you evaluate are the values you receive.
Frequently asked questions
Is fumed alumina the same as aluminium hydroxide (ATH)?+
No. ATH is a mineral flame-retardant filler used at high loadings; fumed alumina is a pyrogenic aluminium oxide used at low loadings for surface and rheology effects. They are separate materials with separate specifications.
Which grade will I be quoted?+
The grade is set by your specification. Share the target performance, process conditions and any customer or regulatory requirement in the RFQ and the matching grade is confirmed with the supplier before quotation.
What packaging is available?+
Packaging is confirmed with the supplier at quotation for the grade and quantity discussed.
Can you deliver across Ontario and Quebec?+
Yes. LTL and FTL freight is arranged across Ontario, Quebec and Western Canada, with container-direct supply for repeat volumes.
Technical knowledge for Fumed Alumina Supplier — Canada
Engineering and purchasing guidance written for this material — understand it, apply it, compare options, specify a grade, and fix production problems.
Foundation Articles
Application Guides
Comparison Articles
Troubleshooting Guides
Related products
Materials commonly quoted alongside Fumed Alumina by the same plants.
Rheology Modifier
Sag and levelling control in architectural and industrial paints
Need a quote on Fumed Alumina?
Request pricing, TDS/SDS and available documentation. We usually acknowledge enquiries within one business day; samples are subject to supplier availability and product classification.