Zinc Oxide
Zinc Oxide (ZnO) is an inorganic compound appearing as a white powder or granular form. Finstar supplies Zinc Oxide typically with a purity exceeding 99%, often utilized as a functional additive.
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Finstar
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Ceramics
High Alumina Refractory Castable
High Alumina Refractory Castable is a heat-resistant, cement-like material formulated primarily with aluminum oxide (Al2O3) to deliver robust performance in elevated temperature environments.
Technical Specifications
CAS NumberNot specified
Chemical FormulaAl2O3-based refractory composite
AppearanceLight grey powder
Packaging25 kg bags or bulk supply where applicable
StorageCool, dry, ventilated chemical storage
Safety InformationUse appropriate PPE including gloves and dust mask
Store in dry, cool, ventilated area away from moisture
Handle spills by wetting dust and cleaning to avoid airborne particles — use correct personal protective equipment (PPE) and follow site safety procedures before handling.
Full Product Details
High Alumina Refractory Castable — Specifications, Uses & Availability
Product Overview
Product NameHigh Alumina Refractory Castable
CategoryCeramics
SupplyQuoted per order — confirm lead time with the sales desk
Explore Ceramics, browse the full chemical catalogue, or request a quote.
Available Packaging Options
25 kg bags
Bulk supply where applicable
Need a different pack size or bulk tanker delivery? Request a custom quote.
About High Alumina Refractory Castable
High Alumina Refractory Castable is a heat-resistant, cement-like material formulated primarily with aluminum oxide (Al2O3) to deliver robust performance in elevated temperature environments. It is supplied as a light grey powder designed for mixing with water at dosages typically ranging from 5 to 7 liters per 25 kg bag to achieve suitable consistency for casting or troweling. This castable forms dense, durable linings capable of withstanding mechanical abrasion and thermal shock, making it ideal for industrial applications requiring sustained high temperature exposure. Prior to ordering, buyers should verify the specific thermal stability required for their use, as the material can withstand temperatures commonly up to 1700°C depending on formulation. It is incompatible with materials releasing sulfur or chlorides during operation, which can compromise refractory integrity. Proper storage in a cool, dry, and ventilated environment is essential to maintain material quality before use.
Why High Alumina Refractory Castable Matters
Industires utilizing furnaces and kilns face ongoing challenges related to heat-induced wear and structural degradation. High Alumina Refractory Castable addresses these issues by providing a lining material that maintains strength and thermal resistance even under prolonged exposure to temperatures exceeding 1500°C. By preserving the mechanical stability of critical components such as furnace walls and kiln linings, this castable reduces downtime from repairs and replacements, thereby supporting operational continuity and enhancing overall equipment lifespan.
Applications & Industries
Furnace lining repair and constructionFormulated to rebuild and reinforce refractory linings in furnaces, ensuring structural strength and thermal insulation essential for high-temperature operations.
Steel melting and processing furnacesUsed to provide thermal protection and resistance against corrosive slags and molten metals encountered during steel melting processes.
Cement kiln refractory liningProtects cement kiln shells from high temperatures and chemical erosion caused by clinker formation.
Glass furnace bricks and patchesEmployed to produce refractory bricks or patch materials that resist the aggressive thermal and chemical conditions within glass furnaces.
Heat-resistant linings for industrial equipmentApplied as protective layers inside reactors, incinerators, and related equipment exposed to intense thermal stress.
Thermal insulation in power plantsActs as an insulating refractory material improving heat retention and protecting components within boilers and turbines.
Ladle and tundish lining in steel foundriesProvides heat-resistant linings to maintain molten metal temperature and contain liquids safely during transfer processes.
Incinerator lining and repairMaintains structural integrity in incinerator chambers by resisting thermal and chemical corrosion during waste processing.
Kiln car construction and repairUsed to fabricate or refurbish kiln cars that transport materials through the high-temperature zones within kilns.
Electric arc furnace liningsServes as a refractory shield against extreme heat and slag erosion in electric arc furnace interiors.
Refractory concrete componentsMixed to create cast refractory concrete elements for constructing heat-resistant industrial parts.
Thermal barrier coatings base layerForms the base refractory layer beneath thermal barrier coatings to enhance insulation and durability.
Chemical reactor liningsUsed to line reactors where both high temperature and chemical resistance are required to contain aggressive processes.
Open hearth furnace applicationsApplied to protect structural components in open hearth furnaces subject to fluctuating high temperatures.
Kiln hood and duct liningsProtects kiln hoods and flue ducts by resisting heat and chemical attack from exhaust gases and combustion products.
Steel manufacturingUsed extensively for furnace linings, ladle linings, and tundish applications in steel production facilities.
Cement productionSupplies kiln linings that withstand high temperatures and abrasive clinker environments in cement plants.
Glass makingApplied in glass furnace brick and patch repair to manage thermal and chemical stresses during melting.
Power generationInsulates boilers and turbines in thermal power plants to enhance heat containment and efficiency.
Waste incinerationRefractory linings protect incinerator chambers against high heat and corrosive flue gases in waste treatment facilities.
Chemical processingWorks as lining material for reactors and vessels requiring heat and corrosion resistance to aggressive chemicals.
Non-ferrous metal foundriesForms castables for holding and transferring molten non-ferrous metals in casting and refining.
Ceramics manufacturingLines kilns and furnaces used for firing ceramic products, resisting the intense thermal load during firing cycles.
Petrochemical refiningUsed within high-temperature units for catalytic cracking and reforming processes that require refractory protection.
Automotive components fabricationSupports heat treatment furnaces used in hardening and annealing metal parts requiring controlled thermal environments.
Mining and mineral processingProtects rotary kilns and furnaces processing ores subject to abrasive and thermal wear.
Aerospace materials productionForms thermal barriers in furnaces used for manufacturing heat-resistant aerospace alloys and composites.
Food processingProvides refractory surfaces in high-temperature ovens used for baking or drying applications requiring precise thermal control.
Rubber and plastics manufacturingUsed in heat-resistant linings for vulcanizing furnaces and curing ovens sensitive to refractory performance.
Construction materials fabricationUsed in kilns and furnaces for producing bricks, tiles, and other construction ceramics requiring refractory protection.
Properties & Handling Notes
Aluminum oxide concentrationContains 70% to 90% Al2O3 content providing enhanced heat resistance suitable for temperatures above 1500°C.
Ready-to-mix powder formSupplied as a fine powder that can be mixed onsite with water to the desired consistency for casting or patching.
Mechanical strengthDevelops high compressive strength after curing, supporting structural loads inside high-temperature equipment.
Thermal shock resistanceFormulated to withstand rapid temperature changes without cracking or spalling, extending service lifetime.
Chemical durabilityResistant to corrosion from slags, molten metals, and aggressive kiln atmospheres.
Customizable setting timeAvailable in formulations with varying set times to suit different application methods and operational schedules.
Packaging optionsOffered in 25 kg bags facilitating convenient handling and storage, with bulk options for large-scale users.
Compatibility with other refractoriesCan be bonded to other refractory modules or bricks to form composite linings.
Low thermal conductivityProvides effective insulation to reduce heat loss and improve furnace energy efficiency.
Bulk density controlManufactured to maintain consistent bulk density for predictable kiln expansion and shrinkage.
Multipurpose applicationSuitable for construction, repair, and maintenance tasks across a range of heat-intensive industrial equipment.
Batch traceabilityEach batch is marked by lot numbers to enable quality tracking and process control.
Dust control packagingPackaged to minimize dust generation during handling and mixing, improving workplace safety.
Moisture content regulationSupplied with controlled moisture levels to ensure predictable setting and curing performance.
Compliance documentationTechnical data sheets and material safety data sheets available to support safe handling and usage.
Extended equipment lifeReduces frequency of furnace and kiln repairs by providing resilient linings that endure harsh operating conditions.
Improved thermal efficiencyInsulates high-temperature zones effectively, minimizing heat loss and reducing energy consumption.
Enhanced operational safetyMaintains structural integrity under thermal shock, reducing risk of sudden refractory failure.
Lower downtimeDurability and ease of repair allow faster maintenance cycles, maximizing production uptime.
Versatile application methodsCan be cast, troweled, or gunned, allowing adaptation to various refurbishment and construction needs.
Consistent qualityBatch-controlled production ensures uniform performance properties between deliveries.
Compatibility with diverse environmentsResistant to chemical attack from slags, molten metals, and combustion gases common in high-temperature processes.
Convenient packagingAvailable in manageable bag sizes optimized for typical plant usage and storage conditions.
Technical support availabilitySupports purchasers with technical data and application advice to optimize installation results.
Regulatory complianceSupplied with documentation to comply with industrial chemical safety standards relevant to handling and storage.
Economic use rateConcentration and mixing ratios calibrated to maximize coverage area per unit weight while achieving performance requirements.
Reduced material wastageUniform powder quality and predictable curing reduce rejects and rework costs.
Operational flexibilitySuitable for a range of temperatures and process conditions, adaptable across multiple heat-intensive industries.
Improved environmental handlingDust control packaging and clear safety guidelines reduce workplace contamination risks.
Supply reliabilityConsistent inventory turnover and batch supply maintain steady availability for maintenance scheduling.
Delivery Coverage Across Kenya’s Counties
Finstar is a leading supplier of industrial chemicals across Kenya’s counties. High Alumina Refractory Castable is dispatched from our Nairobi Industrial Area warehouse to businesses nationwide — including Nairobi, Mombasa, Kisumu, and Nakuru counties — plus cross-border delivery to Uganda, Tanzania, and Rwanda. Towns we regularly supply include:
NairobiMombasaKisumuNakuruEldoretThikaRuiruKiambuMachakosNaivashaNyeriMeruKerichoKakamegaKitaleMalindiNanyukiAthi RiverVoiKilifi
Delivering to a different town or county? Request a quote and our logistics team will confirm delivery timelines to your location.
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