ALKA · AUSTRALIAN COATINGS MANUFACTURER
Petrochemical Plants
Separate plant corrosion protection from process chemistry.
SERVICE & APPLICATIONS
Protection matched to the asset.
Petrochemical assets place external steel, chemical handling and maintenance work side by side. ALKA protective and lining systems give specifiers distinct routes for structural protection, barrier service and chemically exposed containment.
Plant structures
MIO barrier systems address prepared atmospheric steel where barrier performance is the priority.
Wet process areas
Glass-flake epoxy builds provide a route for selected wet and spillage duties on prepared substrates.
Chemical exposure
Tanklin-based lining selection follows the named chemical, concentration and temperature, including cleaning.
ALKYD PRIMERS · ENAMELS · SINGLE-PACK FINISHING
Everyday metal finishes outside chemical service zones
Dry service cabinets, workshop assemblies and selected non-process steel can be considered for single-pack primer/enamel finishing. Chemical process equipment and containment need a separate selection based on actual contact; an enamel should not be specified across a plant simply for colour consistency.
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 415 · Hammer-tone finish
A decorative textured finish for machine covers, cabinets, enclosures and fabricated metal items where appearance is part of the brief.
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
List process chemicals, cleaning media, concentrations, temperature and likely splash paths. Identify components genuinely outside those exposure zones.
Confirm removal of chemical deposits and the condition of retained coatings before preparation. Use a compatibility trial for maintenance recoating.
Agree the return-to-service condition with operations. Allow the specified cure before nearby chemical handling or cleaning resumes.
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
Aggressive chemical exposure, chemical containment and immersed surfaces require a separately reviewed resistant 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-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-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.
- 01Chemicals and mixtures
- 02Temperature and contact duration
- 03Cleaning and upset conditions
- 04Substrate and lining inspection
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-9935 · Barrier-lining example
Schematic, not to scale. Follow the selected system for products, layer count and thickness.
TECHNICAL QUESTIONS
Details that affect system selection.
Why include cleaning and process upset conditions?
A lining may encounter hotter, stronger or different chemicals during cleaning or an upset than during normal operation. Include those conditions in the exposure brief so the selected system covers the intended duty.
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.
Chemical suitability is specific to the complete exposure regime. High-temperature process equipment, CUI and fire protection need separate systems and supporting evidence.
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.