Industries

Coating Services for Mining & Mineral Processing

AST provides chemical-barrier, release and wear coating services for mining and mineral processing equipment — process tanks and vessels, chutes and hoppers, pump and valve components, agitators and shafts. Work is processed at our Campbellfield, Melbourne facility, with door-to-door freight in and out across Australia and New Zealand.

AST is the only licensed industrial fluoropolymer applicator in Australia, New Zealand and South East Asia, with technical and quality audits by Chemours Global and a lifetime workmanship warranty. AST is trusted by major customers including Rio Tinto and Alcoa.

Coated process vessels and pipework — AST barrier coating for aggressive process duty

Acid and Aggressive Chemical Duty

Leaching, refining and hydrometallurgical circuits attack conventional protective finishes. Halar (ECTFE) and Tefzel (ETFE) thick-film linings give tanks, vessels, pipework and fabricated hardware a genuine barrier against acids, alkalis and oxidisers. Both systems are holiday/spark tested with pass/fail documented on every job.

Halar (ECTFE) and Tefzel (ETFE) thick-film barrier linings
Tanks, vessels, pipework and fabricated assemblies
Holiday/spark tested — results documented
Materials Certificate of Conformance with every job

Release and Anti-Build-Up

Where wet, sticky or fine product hangs up on transfer surfaces, PTFE and PFA release systems change the surface rather than the geometry. Chutes, hoppers and liners coated for release run cleaner, and the same non-stick surface makes wash-down and manual cleaning faster.

PTFE and PFA non-stick release systems
Chutes, hoppers, liners and transfer surfaces
Reduced product build-up and adhesion
Easier wash-down and cleaning

Wear, Restoration and Hardware

Wire arc metal spray restores worn shafts and cylindrical components to dimension in chrome, stainless steel or nickel, and the sprayed layer can be machined back to the original finish. For fasteners and hardware, Xylan dry-film systems provide corrosion protection and controlled torque in industrial service.

Wire arc metal spray — dimensional restoration and wear
Chrome, stainless steel and nickel, machinable to finish
Xylan dry-film coatings for fasteners and hardware
New coating and refurbishment of existing assets

AST is the only licensed industrial fluoropolymer applicator in Australia, New Zealand and South East Asia, with technical and quality audits by Chemours Global. AST also provides a lifetime workmanship warranty.

Equipment We Coat

From fasteners to full vessels

Mining and mineral processing work spans two extremes — small hardware in large quantities, and single large fabrications that cannot be replaced quickly. AST handles both in-house, on new equipment and on refurbishment of assets already in service.

Typical components

Tanks and process vessels — internal barrier linings for acid and aggressive chemical duty
Chutes and hoppers — release coatings where product build-up is the problem
Pump and valve components — bodies, internals and associated fittings
Agitators and shafts — barrier protection, release, or metal spray restoration
Fasteners and hardware — Xylan dry-film coatings for corrosion protection and controlled torque
Instrumentation and thermowells — protection of wetted sensing hardware

Capacity, freight and turnaround

Largest technical coating equipment in Australia and New Zealand — ovens 7 m × 3 m × 3 m
Parts up to approximately 8 m accommodated by diagonal loading
Door-to-door freight in and out across Australia and New Zealand
Coating turnaround typically 7–10 working days from receipt of the part
Materials Certificate of Conformance and QA records with every job
Lifetime workmanship warranty

For system detail see our Halar (ECTFE) coating, Tefzel (ETFE) coating, Xylan coating and metal spray coating pages, or request a quote with your duty conditions and part drawings.

Heavy Process Hardware

Barrier linings, release coatings and shaft restoration

Halar (ECTFE) and Tefzel (ETFE) linings on vessels and pipework, non-stick release systems on transfer hardware, and wire arc metal spray restoring worn shafts back to dimension.

Skid-mounted coated process equipment, pumps and piping — Skid-mounted process equipment

Spray coating applied to a large cylindrical industrial component — Large component application

Before-and-after comparison of a worn shaft and the same shaft restored by wire arc metal spray — Worn vs restored shaft

Frequently Asked Questions

Can you line mineral processing equipment for acid service?

Yes. Halar (ECTFE) and Tefzel (ETFE) thick-film barrier linings are the systems AST applies for acid and aggressive chemical duty on tanks, vessels, pipework and fabricated process hardware. Both systems are holiday/spark tested as standard, with pass/fail results documented and issued with the job alongside a materials Certificate of Conformance.

How big a part can AST coat?

AST operates the largest technical coating equipment in Australia and New Zealand. The ovens measure 7 m deep by 3 m high by 3 m wide, and parts up to approximately 8 m can be accommodated by diagonal loading. Large fabricated items — vessels, tank sections, long shafts and pipe spools — are handled in-house rather than split across subcontractors.

Do you handle freight from remote mine sites?

Yes. AST arranges door-to-door freight in and out across Australia, and to New Zealand, and can quote freight as part of the coating quote or work with the customer nominated carrier. For batched components, consolidating into a single freight run keeps cost per part down.

Can worn shafts and rotating components be restored?

Yes. Wire arc metal spray rebuilds worn shafts, journals and cylindrical components in chrome, stainless steel or nickel, and the sprayed coating can be machined, ground or polished back to the original dimension and surface finish. It is also used as a wear and corrosion surface in its own right, and as an alternative to hard chrome plating. See our metal spray coating services page for the full process detail.

Only licensed industrial fluoropolymer applicator in Australia, New Zealand and South East Asia

Yearly technical and quality audits by Chemours Global

Lifetime warranty on workmanship

Need a Quote for Your Equipment?

Talk to AST about your coating requirements, operating conditions and performance goals. Our team can review your application and prepare a technical quotation.