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Does powder coating adhere to aluminium?

Aluminium is an increasingly popular choice for a wide range of industrial and domestic applications. Combining flexibility with a high degree of corrosion resistance, it’s a lightweight metal that doesn’t compromise on strength.

Many people ask can you powder coat aluminium, to which the answer is yes you can. Powder coating aluminium is a straightforward process that delivers high-quality results for a range of applications.

Is it better to paint or powder coat aluminium?

In most cases, aluminium will either be painted or powder coated, with the latter option often regarded as superior due to its durability, efficiency and aesthetic appeal. During the powder coating process, the powder particles melt to create an even coating that adheres tightly to the surface increasing its durability. This durability is particularly important for aluminium which will often be used for outdoor applications that may be exposed to harsh weather conditions.

Powder coating is available in a range of finishes and colour options, making it suitable for a wide array of uses including industrial applications where functionality and appearance are both important.

Does aluminium need to be sanded before powder coating?

While sanding may not always be necessary before powder coating aluminium, surface preparation is a critical step in ensuring its success. Aluminium surfaces may have contaminants, oxidation, or oils that may hinder adhesion. The surface should be thoroughly cleaned using the appropriate solvents or degreasers.

If oxidation has occurred, sanding or abrasive blasting may be necessary to remove the oxide layer. This creates a receptive surface for the powder to bond to. The extent and type of surface preparation required before powder coating aluminium will depend to a large extent on the condition of the metal. 

How long does powder coating last on aluminium?

When high-quality powder coatings are applied to properly prepared aluminium surfaces it can last for many years. Ultimately, the longevity of a powder coated finish on aluminium will depend on a number of factors including the quality of the coating, surface preparation and the environmental conditions it is subjected to.

Regular maintenance and cleaning can further extend the life of powder-coated finishing. Powder-coating aluminium is a reliable and long-lasting choice for aluminium surfaces.

Which metals cannot be powder coated?

Different metals are more suited to powder coating than others. Metals such as copper, brass and bronze have thermal conductivity which can make it more difficult to achieve proper curing of the powder coatings. Metals that undergo significant thermal changes during the curing process, such as zinc or lead, are not suitable for powder coating.

Powder coating aluminium is a relatively straightforward process that delivers a range of benefits for different applications.

Optimised powder coating in Worcestershire

At Pershore Dip Coating, our powder coating services add corrosion resistance and durability to a range of industrial applications including construction, automotive and manufacturing.

Based in Worcestershire, we offer optimised powder coating services, saving costs and reducing material usage wherever possible.

Contact us to find out more.

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