Caring for Aluminium: Storage, Handling, and Maintenance

Proper Storage of Aluminium

To preserve the quality and appearance of aluminium over long periods, proper storage is essential. Aluminium should be stored indoors in a clean, dry environment, free from dust, contaminants, and contact with other materials. Vertical storage is recommended to ensure full air circulation around each piece. Applying a light oil coating before storage can further protect the surface.

Cleaning Aluminium: Methods and Precautions

Routine cleaning is the best way to maintain aluminium’s visual appeal. Always begin with the gentlest cleaning method and escalate only if necessary. Cleaning techniques, in order of increasing intensity, include:

• Plain water

• Mild soap or detergent

• Solvents (e.g., kerosene, turpentine, white spirit)

• Non-etching chemical cleaners

• Wax-based polishes

• Abrasive waxes

• Abrasive cleaners

After cleaning, rinse thoroughly with clean water and dry completely to prevent streaks and spotting. Be especially careful around joints and edges, ensuring no residue remains. If the aluminium has a brushed or grain finish, always clean in the direction of the grain to avoid altering its appearance.

Note: Abrasive cleaners can dull polished surfaces or damage grain finishes—use with caution.

Understanding and Preventing Water Staining

One of the most common aesthetic issues with aluminium is water staining, typically appearing as a white, powdery residue. It forms when moisture becomes trapped between stacked aluminium surfaces, especially in high-magnesium alloys. Although unsightly, it does not affect the metal's structural properties.

To avoid water staining:

• Ensure aluminium is dry before storage.

• Allow any moisture to evaporate using dry air circulation.

• Inspect deliveries for wet packaging and move materials indoors immediately, especially during damp or rainy conditions.

If staining has occurred:

• Light stains can often be removed with brushing.

• Heavier staining may require chemical treatment using a solution of 10% sulphuric acid and 3% chromic acid by weight.

Receiving Aluminium Deliveries

On arrival, inspect all aluminium components for:

• Damage to protective coatings (plastic or paper)

• Signs of wetness, especially from packaging or pallets

Addressing these issues immediately helps prevent surface defects and staining.

Handling Aluminium Safely

To protect aluminium during handling:

• Avoid contact with sharp or abrasive surfaces

• Always use two people to move sheets and prevent dragging

• Never drag or throw components

• Use soft slings for lifting to avoid distortion

• Do not walk on aluminium sheets

Regular Maintenance

Routine cleaning prevents dirt buildup and staining. If aluminium is neglected, grime may become difficult to remove without resorting to abrasive methods. Always start with the mildest cleaning solution and escalate only when necessary.

Installation Best Practices

To minimize the risk of staining or damage, install aluminium components as late as possible during a project. Surfaces are most commonly stained by nearby construction work involving mortar, concrete, or paint. Prevent this by applying a protective layer of clear lacquer or light oil.

If contamination occurs:

• Remove wet substances promptly and rinse thoroughly

• For dried materials like plaster or paint, use plastic or wooden scrapers—never metal, which can scratch the surface

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