Anodised aluminium is widely used in construction, architecture, and industrial applications due to its durability, corrosion resistance, and sleek appearance. However, to ensure its longevity and maintain its aesthetic appeal, regular maintenance is essential. Unlike untreated aluminium, anodised aluminium has a protective oxide layer that enhances its resistance to environmental factors such as moisture, pollution, and UV rays. While it requires less maintenance than other metals, neglecting it can lead to staining, fading, or even surface degradation over time.
Proper care of anodised aluminium involves gentle cleaning methods, using appropriate cleaning agents, and avoiding abrasive materials that can damage the protective layer. Whether it’s used in window frames, doors, railings, or facades, adopting a systematic approach to maintenance will keep the sections looking as good as new for years. In this guide, we’ll explore ten effective ways to maintain anodised aluminium sections and ensure their long-lasting performance.
1.Regular Cleaning with Mild Detergent
Routine cleaning is the first step in maintaining anodised aluminium. Dust, dirt, and grime accumulate over time, dulling the surface. Use a mild detergent mixed with warm water and a soft cloth or sponge to wipe the sections. Avoid harsh chemicals or abrasive scrubbers, as they can damage the anodised coating. Rinse thoroughly with clean water to remove any residue and dry with a soft cloth to prevent water spots.
2.Avoid Harsh Chemicals and Abrasives
Anodised aluminium has a protective oxide layer that can be compromised by harsh chemicals like alkaline cleaners, acidic solutions, or ammonia-based products. Always use pH-neutral or mild detergents to prevent discolouration or corrosion. Similarly, avoid steel wool, wire brushes, or abrasive pads, as they can scratch the surface and expose the metal underneath, leading to premature deterioration.
3.Use Non-Abrasive Cleaning Tools
Soft microfiber cloths, sponges, or non-abrasive brushes are ideal for cleaning anodised aluminium sections. These tools effectively remove dirt without damaging the anodised layer. If dealing with stubborn stains, use a soft-bristled brush with mild soapy water, scrubbing gently to avoid surface damage.
4.Rinse Thoroughly After Cleaning
After washing, always rinse anodised aluminium thoroughly with clean water to remove any detergent or cleaning solution. Residual cleaning agents can cause streaks or leave behind a film that attracts more dirt. If cleaning outdoor sections, use a hose to rinse off the surface completely.
5.Protect Against Harsh Weather Conditions
Exposure to extreme weather conditions, such as heavy rain, pollution, or salt air in coastal areas, can affect anodised aluminium over time. If the sections are exposed to harsh environments, consider applying a protective wax or a silicone-based spray to create an additional barrier against moisture and contaminants.
6.Address Stains and Oxidation Promptly
Occasionally, bright anodized aluminum sections may develop stains, discoloration, or minor oxidation spots. To address these, use a mild aluminium cleaner specifically designed for anodised surfaces. Apply the cleaner with a soft cloth, following the manufacturer’s instructions, and rinse thoroughly afterward. For tough stains, a diluted vinegar solution can help restore the surface’s appearance.
7.Lubricate Moving Parts
When anodised aluminium is used in windows, doors, or sliding sections, it is essential to maintain the moving parts to ensure smooth and efficient operation. Hinges, locks, and tracks are exposed to dust, moisture, and friction, which can lead to wear and tear over time. Regular lubrication helps reduce friction, prevent rust, and extend the lifespan of these components.
The best option for lubrication is a non-corrosive, silicone-based spray. Silicone lubricants provide a smooth, long-lasting coating without attracting dust or dirt, which is a common issue with petroleum-based products. Petroleum-based lubricants, such as grease or oil-based sprays, tend to accumulate dust and debris, leading to sticky residue buildup that can hinder movement rather than improve it.
To apply the lubricant, first, clean the moving parts to remove any dirt or old residue. Then, lightly spray or apply the lubricant along the hinges, locks, or tracks, ensuring even coverage. Avoid over-application, as excess lubricant can drip and attract dirt. Regular maintenance, ideally every few months, will keep anodised aluminium doors, windows, and sliding sections operating smoothly while preventing premature damage to essential components. This simple practice ensures longevity and optimal functionality of the fixtures.
8.Perform Periodic Inspections
Regular inspections help identify early signs of wear, corrosion, or damage. Check for scratches, chips, or any breakdown in the anodised layer. If minor damage is detected, apply an anodised touch-up solution or clear protective coating to prevent further deterioration. Prompt maintenance can extend the lifespan of the sections significantly.
9.Apply Protective Coatings if Necessary
In high-exposure environments, applying a protective coating can enhance the longevity of anodised aluminium. There are special anodised sealants and waxes available that provide extra resistance against UV rays, pollution, and moisture. These coatings help maintain the original colour and shine while reducing maintenance needs.
10.Avoid Pressure Washing at High Pressure
Pressure washing is a common method for cleaning various surfaces, but when it comes to anodised aluminium, it must be done with caution. High-pressure water jets can be too intense for the anodised coating, potentially causing it to chip, fade, or wear away over time. The protective oxide layer on anodised aluminium is durable but not indestructible, and excessive force can compromise its integrity, leading to surface damage or corrosion.
If pressure washing is necessary, it is important to use a low-pressure setting and maintain a safe distance from the surface. A pressure setting below 1,500 PSI is generally recommended to avoid harming the anodised layer. Additionally, using a wide spray nozzle rather than a concentrated jet helps distribute the water pressure evenly and reduces the risk of damage.
For routine cleaning, a gentler approach is preferable. A simple hose spray combined with mild detergent is often sufficient to remove dirt and grime without putting unnecessary stress on the anodised coating. Soft sponges or microfiber cloths can be used for stubborn spots to prevent scratches. By taking these precautions, you can effectively clean anodised aluminium while preserving its long-term durability and aesthetic appeal.
Maintaining anodised aluminium sections made by JM Aluminium is essential for preserving their aesthetic appeal and structural integrity. By following these ten maintenance tips—ranging from regular cleaning to using protective coatings—you can ensure that your anodised aluminium remains in top condition for years. With proper care, it will continue to provide a sleek, corrosion-resistant finish that enhances both function and appearance. Investing time in maintenance today will save you from costly repairs or replacements in the future.