ALKA · AUSTRALIAN COATINGS MANUFACTURER
Ore Handling Facilities
Protect the structures that move bulk materials.
SERVICE & APPLICATIONS
Protection matched to the asset.
Stockyard structures, transfer towers and loading facilities need corrosion protection around difficult access and dusty service. ALKA systems address external structural steel and refurbishment areas while keeping direct material-impact duties separate.
Stockyard steel
Exposed towers, gantries and access platforms need a coating build aligned with site weather and coastal exposure.
Sheltered details
Dust accumulation and retained moisture make connections, ledges and inspection access important to the maintenance plan.
Repair areas
Define the removal of failed paint and treatment of exposed steel before tying repairs into sound existing coatings.
ALKYD PRIMERS · ENAMELS · SINGLE-PACK FINISHING
Enamel finishes for selected handling-plant components
Fabricated covers, sheltered guards, maintenance frames and other components away from direct material flow can be considered for single-pack primer/enamel finishes. The decision should distinguish these surfaces from chutes, transfer points and exposed steel that experience severe wear or persistent deposits.
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.
- ALKA 411 · Satin black / chassis enamel
A black finishing option for chassis, frames, transport assemblies and suitable equipment refurbishment.
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
Identify direct impact, rubbing, accumulated fines and washdown separately. These conditions can differ substantially between adjacent faces of the same assembly.
Provide access to ledges, overlaps and underside surfaces during preparation. Remove compacted contamination before assessing the substrate and existing coating.
Include handling damage and assembly touch-up in the work package. Record the coating used on replaceable parts so future repairs use compatible materials.
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
An enamel finish is not a wear liner. Direct ore impact, sliding abrasion and wet contaminated zones require separate material and coating selection.
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-9933 High-Barrier Atmospheric | MIO barrier technology improves resistance to moisture, oxygen and salt penetration Prepared steel in industrial, marine-atmospheric and salt-laden environments above the waterline | Alka 404 or Alka 416 primer → Alka 413 MIO high-build epoxy barrier coat | 225–275 µm |
| ALKA-9932 Maintenance / Refurbishment | Reduces preparation demands and supports practical maintenance programs Existing steel where full abrasive blasting is restricted; hand- or power-tool prepared areas | Alka 412 surface-tolerant epoxy × 2 coats → optional Alka 421 polyurethane finish | 200–400 µm plus optional 50–75 µm finish |
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.
- 01Ore dust and wetting conditions
- 02Coastal exposure
- 03Wear versus atmospheric surfaces
- 04Access and containment constraints
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.
Where should maintenance inspections focus?
Include water and dust traps, edges, welds, bolts and areas damaged by maintenance activities. Record the condition of the coating and substrate so local repairs can be distinguished from broader refurbishment.
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.
Bulk-material contact surfaces may need replaceable wear liners or other engineered protection. Atmospheric paint is not a substitute for those components.
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.