ALKA · AUSTRALIAN COATINGS MANUFACTURER
Mining Storage Tanks
Specify tank exteriors and linings as separate systems.
SERVICE & APPLICATIONS
Protection matched to the asset.
Process-water, fuel and reagent tanks can place very different demands on coatings. ALKA provides atmospheric systems for tank exteriors and dedicated barrier or chemical-lining routes for the contents and operating conditions inside.
Tank exteriors
Weather-facing shells, roofs and external supports need corrosion protection and the selected finish.
Internal linings
Match the lining to the stored fluid, temperature, contact duration and cleaning regime.
Bunds and interfaces
Treat secondary containment, penetrations and concrete surfaces as their own substrate and detailing scope.
ALKYD PRIMERS · ENAMELS · SINGLE-PACK FINISHING
Tank exteriors and single-pack maintenance finishes
For selected tank exteriors, brackets and sheltered ancillary steel in mild atmospheric service, a compatible primer/enamel route may suit a planned maintenance program. Treat the tank contents and the external environment as separate specifications, even when work is carried out during the same shutdown.
Products to assess for the job
- ALKA 401 · Alkyd zinc phosphate primer
Prepared carbon steel; a corrosion-inhibiting primer for compatible alkyd and enamel finishing routes.
- ALKA 403 · Red oxide anti-corrosive primer
A primer option for prepared ferrous metal, fabricated steel and general maintenance; confirm the selected finish compatibility.
- ALKA 410 · Rapid-cure protective enamel
A gloss finishing option for machinery, fabricated components and maintenance work over a compatible prepared and primed surface.
Select a complete, compatible primer and finish. The products above are options by role, not a blanket approval to combine every primer and topcoat.
What the applicator or specifier needs
Record stored material, shell temperature, condensation, spills and external weather exposure. Identify the tank base and water-retaining details for closer assessment.
Assess existing paint, contamination and corrosion at seams, welds and supports. Define cleaning, preparation, spot priming and compatibility testing before full recoating.
Separate exterior-coating release criteria from the tank lining cure and inspection requirements. Keep the two product schedules clearly identified.
Write a usable coating schedule
Specify the substrate and preparation, exact primer and finish, individual-coat dry-film thickness, application method, thinning limits, recoat interval and service-cure requirement from current product data. For repainting, document the retained coating and a representative compatibility trial before full application.
Choose the coating for the exposure
Tank interiors, fuel or chemical contact, immersion and persistently wet bases need an approved service-specific lining or protective system.
A single-pack route can simplify small batches and routine repainting because it does not require mixing a separate hardener. It still depends on sound preparation, suitable film build and the correct recoat window. Where exposure or the required maintenance interval is more demanding, assess the relevant two-pack epoxy, polyurethane or specialist lining system.
Does fast drying mean the part is ready for service?
No. Touch-dry, recoatable, handleable and fully cured describe different stages. Use the selected product data and actual application conditions to plan each stage. Excessive film build, early overcoating or premature handling can compromise the finish; adding extra thinner or a hardener is not a substitute for the specified application procedure.
SELECT THE COMPLETE BUILD
ALKA systems for this application.
| System | Why select it | Coating build | Total DFT |
|---|---|---|---|
| ALKA-9930 Premium External | Premium corrosion protection combined with a UV-stable, colour-retentive finish Abrasive-blasted carbon steel; external industrial and coastal atmospheric exposure | Alka 404 zinc-rich epoxy primer → Alka 413 high-build epoxy → Alka 421 polyurethane finish | 250–300 µm |
| ALKA-9935 Glass-Flake Barrier Lining | High-build glass-flake barrier delivers strong resistance to permeation, wet service and abrasion Prepared steel or concrete exposed to wet service, abrasion, splash, spillage or aggressive industrial conditions | Substrate-specific primer where required → Alka 414 Glass Flake Epoxy → optional approved build or finish coat | 400–750 µm |
| ALKA-9936 Chemical-Resistant Lining | Higher chemical resistance than standard epoxy systems for demanding process environments Prepared steel or concrete in tanks, bunds, process areas and secondary containment | Alka Tanklin 100 and/or Alka Tanklin Chem system selected to suit the chemical service | 450–600 µm |
DFT = dry-film thickness. These are nominal system totals; individual-coat thicknesses and application conditions belong in the final coating schedule.
SPECIFICATION & APPLICATION
From surface preparation to return to service.
Build the coating schedule around the substrate and the work that can be achieved on site. For refurbishment, assess the adhesion and compatibility of retained coatings before defining repair boundaries.
- 01Stored contents and concentration
- 02Operating and cleaning temperatures
- 03Steel or concrete condition
- 04Inspection and return-to-service criteria
Record surface preparation, environmental conditions, coverage at details and coat thickness. Allow for the specified recoat and cure periods, then inspect and repair defects before release to service.
ALKA-9930 · External steel example
Schematic, not to scale. Follow the selected system for products, layer count and thickness.
TECHNICAL QUESTIONS
Details that affect system selection.
What is needed before selecting an internal tank lining?
Provide the stored material, concentration, temperature, immersion duration, cleaning method and substrate condition. Include vapour-space exposure and agree preparation, inspection and filling criteria before application.
What belongs in the final technical submission?
Include current TDS and SDS, substrate preparation, the product and thickness schedule, application conditions, inspection criteria and cure requirements. For chemical or immersed service, include written suitability for the actual exposure. Any required certification or durability commitment must be supported by the relevant evidence.
Potable-water use, high-temperature service and specific chemical resistance require applicable product evidence. A tank exterior coating does not establish suitability for its contents.
PRODUCTS & TECHNICAL DOCUMENTS
Go directly to the product information.
Open the relevant product page for its published information and available documents. Request the current TDS and SDS set for the specified products before procurement.
MANUFACTURER TECHNICAL SUPPORT
Turn the service conditions into a coating specification.
Send the asset, substrate, exposure and maintenance window. ALKA can help define the coating build, preparation and technical documentation for your review.