31/08/2026
FAQ: does aluminium rust at the coast? Not exactly, aluminium doesn't rust the way steel does, but it can corrode if the spec's been cut somewhere along the way.
Three things that actually make the difference. A proper marine-grade powder coat is the first line of defence against salt air, skip it and the surface starts pitting within a couple of seasons. The grade matters too, 6063-T6 architectural aluminium is what should be going into coastal jobs, not a cheaper alternative that costs less up front and more later. And a simple hose-down every few weeks clears the salt residue before it does any damage, the same idea as rinsing your car after a beach day.
Get those three right and coastal aluminium holds up for decades. Skip them and you're looking at a much shorter lifespan.
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