Sustainable Gold Finishing with Over 95% Recovery Efficiency

Gold remains one of the most recognised visual signatures in jewellery, watches and luxury accessories.Its warm metallic appearance is closely associated with craftsmanship, prestige and lasting value. For luxury brands, a gold finish is not just a surface treatment. It shapes how a product is perceived, experienced and differentiated in the market.

As customer expectations for premium appearance continue to rise, manufacturers need finishing routes that can deliver refined gold aesthetics with consistency, repeatability and production control.

The Challenge

For manufacturers, gold finishing is becoming a more complex business challenge.

As gold prices rise, every gram of gold used in production carries greater cost implications, making process efficiency more critical than ever. Yet conventional electroplating often lacks the level of precision needed to optimise gold usage. As a result, manufacturers may experience thicker-than-required coatings, inefficient recovery of gold and higher gold consumption across production runs.

At the same time, manufacturers are facing rising expectations around responsible production, wastewater management and chemical compliance. Since conventional electroplating relies on chemical-intensive wet processes, this makes it increasingly challenging to balance production requirements with sustainability goals.

As sustainability expectations and chemical regulations continue to tighten, the pressure is no longer only about achieving a premium gold appearance. Manufacturers also need to reduce exposure to hazardous wet chemical processes while improving accountability over precious metal usage.

A Cleaner Route to Premium Gold Finishing

To address rising gold cost pressure, sustainability expectations and the need for consistent luxury finishes, NTI Nanofilm supports manufacturers through a cleaner PVD gold coating route.

Unlike conventional wet electroplating, PVD is a dry, vacuum-based coating process. It does not require electroplating baths or chemical rinsing during the coating stage. Instead, gold or gold-tone finishes are deposited as ultra-thin films in a controlled vacuum chamber, giving manufacturers better control over coating thickness, colour tone, surface quality and material usage.

This allows luxury manufacturers to achieve refined gold finishes with greater production consistency and precise control over gold consumption. NTI’s PVD sputtering technology supports both genuine gold coatings and a wide range of gold-inspired finishes, enabling premium surface quality, consistent colour, design flexibility and differentiated luxury aesthetics.

Together, these solutions help jewellery and luxury goods manufacturers maintain premium gold aesthetics while moving towards a cleaner, more controlled and commercially flexible surface finishing process.

Improving Gold Recovery Control with NTI Inline Coating System

To help manufacturers gain better control over precious metal usage and recovery, NTI Inline Coating System provides a more accountable route for gold coating production.

As the PVD process takes place inside a dry, controlled vacuum chamber, gold that is not deposited onto the product can be collected from the chamber environment, allowing a more predictable route to recover valuable gold material and improve accountability across production.

With recovery efficiency validated at more than 95%, NTI Inline Coating System helps manufacturers manage gold usage with greater confidence, especially as material costs continue to rise.

Business Outcome

By moving from conventional wet chemical gold plating to PVD gold coating, manufacturers can address multiple business priorities at once.

>95% validated recovery efficiency

NTI Inline Coating System supports more predictable gold recovery, helping manufacturers improve gold accountability and respond more effectively to rising gold cost pressure.

Lower gold usage and coating cost

For suitable decorative applications, precisely controlled PVD Au layers can be deposited thinner than conventional electroplated layers, reducing gold consumption and material cost per component.

ESG compliant

The dry PVD coating route reduces reliance on chemical-intensive wet processes, supporting cleaner production with lower exposure to electroplating baths, wet chemical solvents and metal-bearing wastewater.

Greater flexibility with gold finishing

With NTI’s PVD sputtering technology, brands can achieve premium gold aesthetics while expanding their product offerings and creating greater design variation.

For an industry where surface appearance, material value and sustainability are increasingly connected, NTI Nanofilm helps manufacturers move towards a more responsible and commercially flexible way to finish gold.