ALKA · AUSTRALIAN COATINGS MANUFACTURER
Tank lining systems and storage tank coatings.
Separate the tank finish from the lining that faces its contents.
SERVICE & APPLICATIONS
Protection matched to the asset.
Tank exteriors and internal surfaces perform different jobs. ALKA external protective systems address weather and appearance, while lining selection is driven by the stored chemical, temperature, immersion regime and cleaning requirements.
External shells
Prepared steel exteriors, roofs and supports can use a coordinated corrosion-protection and finish system.
Internal surfaces
Map liquid, vapour-space and cleaning exposure before selecting the complete lining.
Maintenance
Assess the existing coating, substrate and available preparation before defining a repair scope.
ALKYD PRIMERS · ENAMELS · SINGLE-PACK FINISHING
Specify the external finish independently of the lining
Suitable atmospheric tank exteriors, access components and ancillary frames may be considered for a compatible single-pack primer and enamel. Internal tank duty, heated service and exposure at the tank base remain separate decisions and should appear separately in the coating schedule.
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
Provide the stored material, concentration, temperature, fill cycle and cleaning regime for the lining review. Define exterior weathering and spill exposure separately.
Inspect existing coatings, welds, support details and water traps. Specify preparation and compatibility checks before applying a maintenance topcoat.
Keep product identification and cure criteria distinct for interior and exterior work. Include site repairs following lifting or assembly.
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
Product-contact interiors, immersion, aggressive chemicals and high-temperature duty need an approved service-specific coating or lining.
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.
- 01Contents and vapour space
- 02Operating and cleaning temperatures
- 03Substrate and preparation
- 04Cure and filling 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 determines when a lined tank can be filled?
The approved product and build, actual curing conditions and completed inspections determine release. Surface dryness alone is not evidence that the lining is ready for immersion.
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.
Pressure-vessel integrity, potable-water contact and high-temperature or specialist chemical service require their own evidence and approval. A general tank coating is not a universal lining.
PRODUCTS & TECHNICAL DOCUMENTS
Go directly to the product information.
Read the published technical data sheets below, or open a product overview. Request the current SDS set and confirm the document revisions for your specification 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.
Tank lining systems — Sydney, Brisbane and Melbourne
Specify tank interiors and exteriors separately. ALKA helps review coating pathways for steel or concrete tanks, vessels and containment, based on the complete service conditions and preparation scope.
Tank lining systems in Sydney
For Sydney storage tanks, identify the existing lining, substrate and access constraints. Include stored contents and cleaning methods in the technical enquiry.
Tank lining systems in Brisbane
For Brisbane process tanks, identify immersion, splash and exterior exposure as separate zones. Confirm chemical identity, concentration and service temperature before selecting a lining.
Tank lining systems in Melbourne
For Melbourne tank maintenance, agree decontamination, surface preparation, cure and inspection within the shutdown. Filling dates must follow the selected product specification.
Tank lining product range · Chemical-resistant lining system · Exterior protective coatings
Request a project-specific ALKA system recommendation. Send your location, area, substrate photos and service conditions. Ask about product supply, current technical data and an applicator referral; availability and final suitability are confirmed for the project.