To clean an aluminium ACP facade, wash it with water and a mild pH-neutral detergent, rinse, and dry with a soft cloth — once or twice a year, more near the coast or a busy road. A PVDF-coated aluminium facade needs very little maintenance because aluminium does not rust and PVDF resists dirt pickup; the main job is removing airborne grime before it dulls the finish. Avoid abrasives, strong solvents and high-pressure blasting, which damage the coating.
Why aluminium facades need so little upkeep
Aluminium does not corrode, and a PVDF (Kynar) coating is chemically stable, so the facade will not rust-streak or chalk the way coated steel does. Rain self-cleans most of a panel; maintenance is really about the sheltered areas rain misses and the film of traffic or coastal grime that builds slowly and dulls the colour if left.
The routine, step by step
Rinse with clean water to lift loose dirt. Wash top-down with a soft sponge or cloth and a mild, pH-neutral detergent diluted per label. Work in shade, not hot sun, so it does not dry with streaks. Rinse thoroughly and wipe dry with a soft cloth or leather to avoid water spots, especially on gloss and metallic finishes.
What never to use
No abrasive pads, scouring powders or wire brushes — they scratch the coating. No strong solvents (MEK, acetone, thinners) or strong acids/alkalis, which attack PVDF. No high-pressure jet washing directly at joints, which drives water behind the panels. Test any stain remover on a hidden panel first.
Frequency and coastal facades
Clean once or twice a year for most buildings; every few months near the sea, heavy traffic or industry, where salt and grime build faster. Coastal salt is easy to rinse off aluminium and does not corrode it, but leaving it lets grime dull the finish. A quick water wash on schedule keeps a PVDF facade looking new for 15–20 years.
Frequently asked questions
How do I clean an aluminium ACP facade? Rinse, then wash top-down with water and a mild pH-neutral detergent, rinse and dry with a soft cloth — once or twice a year.
What should I never use on ACP? Abrasives, wire brushes, strong solvents (acetone/MEK), strong acids/alkalis, or high-pressure jets aimed at joints.
How often should a coastal facade be cleaned? Every few months near the sea or heavy traffic; once or twice a year elsewhere. Salt rinses off easily and does not corrode aluminium.
Does an aluminium facade rust or streak? No — aluminium does not rust and PVDF does not chalk, so it will not rust-streak like coated steel.
Related: ACP colour selection · ACP buyer’s guide · cleaning insulated aluminium panels.
Talk to the factory: GSM BuildTech (Beijing Guanshimao Technology Co., Ltd.) makes insulated aluminium panels, FR aluminium composite panels, aluminium ceilings, standing-seam roofing and PVDF aluminium coil in Tianjin, China. Email sales@insulatedaluminumroof.com or WhatsApp +86 155 2274 6824 for factory-direct pricing. See the technical reference & FAQ.