how to get scratches out of aluminium

Introduction

Aluminum is a versatile and widely-used material, known for its lightweight and durability. However, it’s not immune to scratches, which can mar its appearance over time. Whether you’re dealing with scratched aluminum on your car, appliances, gadgets, or furniture, there are several methods to help reduce or remove scratches and restore the metal’s original luster.

Assessing the Scratch

The first step in addressing scratches on aluminum is to assess the severity of the scratch. If it’s a surface scratch that hasn’t penetrated the anodized layer, it’s easier to remedy. Deeper scratches that reach the pure aluminum may require more effort and precision to fix.

Simple Solutions for Light Scratches

Cleaning the Aluminum

Before attempting to remove any scratches, it’s important to clean the surface thoroughly:

1. Wipe down the aluminum with a soft, damp cloth to remove any debris.
2. If needed, use a mild detergent diluted in water, then rinse with clean water to prevent further scratching from abrasive substances.
3. Dry the aluminum completely with a microfiber cloth.

Using a Commercial Scratch Remover

There are products specifically designed to remove scratches from metals, including aluminum. Follow these steps:

1. Purchase a commercial scratch remover suitable for aluminum. Make sure to read the product’s instructions carefully.
2. Apply the scratch remover to a soft cloth and rub it into the scratch in a circular motion.
3. Continue rubbing gently until the scratch begins to fade away.
4. Wipe off any residue with a clean cloth and buff the surface for a polished finish.

DIY Methods for Removing Scratches

Using Toothpaste

Toothpaste, especially the whitening variety that contains small abrasive particles, can be used to buff out light scratches:

1. Apply a small amount of toothpaste to a soft-bristled toothbrush or a soft cloth.
2. Gently rub the toothpaste over the scratch in a circular motion.
3. Wipe away the toothpaste with a clean damp cloth and dry the area with a second clean cloth.

Using Sandpaper for Deeper Scratches

If the scratch is too deep for toothpaste or a commercial scratch remover, sandpaper might be necessary:

1. Begin with a higher grit sandpaper (like 800 grit) and gently sand the area around the scratch.
2. Always move in the direction of the grain to avoid making the scratch worse.
3. Gradually work your way down to a finer grit sandpaper (like 2000 grit) to smooth the area.
4. After sanding, use a metal polish to restore shine to the area.

Protecting and Polishing the Aluminum After Scratch Removal

Applying Metal Polish

Once the scratches have been addressed:

1. Apply a high-quality metal polish to the aluminum using a soft cloth.
2. Rub the polish in a circular motion until you achieve the desired level of shine.
3. Buff the area with a clean cloth to remove any excess polish.

Using a Clear Protective Coating

Protect the newly treated aluminum surface by applying a clear protective coating:

1. Select a clear protective spray or coating that’s suitable for metal and follow the instructions on the product label.
2. Make sure the aluminum is clean and dry before application.
3. Apply the protective coating evenly, allowing it to dry thoroughly.

Conclusion

Scratches on aluminum can often be diminished or even removed entirely with the right approach and materials. For light scratches, simple household items like toothpaste can be surprisingly effective. Deeper scratches may require a more rigorous approach involving sandpaper and metal polish. After scratch removal, always remember to protect the metal to prevent future damage. With patience and the proper technique, you can restore the appearance of your aluminum surfaces to look as good as new.