Will aluminium privacy screens rust?
Updated: 5 days ago
Short answer
No. Aluminium does not rust. Rust is iron oxide, and there is no iron in aluminium.
What aluminium does instead is oxidise: the surface reacts with air and forms a thin, hard layer of aluminium oxide that then protects the metal underneath. Steel rust flakes away and keeps eating inwards. Aluminium oxide does the opposite — it seals the surface and stops.
What powder coating adds
Every screen we make is powder coated, which puts a baked-on layer between the aluminium and the weather. That handles appearance and adds a second barrier. It is why a powder-coated aluminium screen doesn't need sanding, oiling or repainting the way a timber screen does.
Where corrosion can still happen
Being straight about it, because "never" is rarely true of any material:
Dissimilar metals. Aluminium in direct contact with steel or brass, with moisture present, can corrode galvanically. This is why fixings matter, and why we use appropriate fasteners rather than whatever is in the box.
Damaged coating. A deep scratch through to bare metal in a salt-air environment will mark.
Coastal exposure. Within a few hundred metres of surf, salt deposits sit on any surface. The fix is rinsing with fresh water, not a different metal.
In the Brisbane climate
Brisbane's combination of humidity, heavy summer storms and hard UV is what destroys timber screens — they swell, split, grey off and need recoating. Aluminium is unaffected by moisture and UV does not degrade a powder-coated finish the way it does paint on wood.
Care
Hose it down. Where salt or grime builds up, warm water and a soft cloth. No oiling, no staining, no sanding back.
Want to see it in a real project? Browse our Batten Screening and Privacy Fencing galleries, or get in touch via Contact.
