Gold plating
For lasting value
100+
Employees
50+
Years of experience
250+
Customers
4.9M+
Components per year
For every application
the ideal gold plating
Whether decorative or technical, our gold platings combine a premium appearance with outstanding electrical conductivity and wear resistance. Together with you, we develop the right alloy for your component, whether for medical technology, electronics, precision engineering or the luxury segment.
Iron-gold (AuFe)
Iron-gold platings combine high electrical conductivity with very good mechanical properties. They feature high wear resistance and a uniform layer build-up. This makes the coating particularly suited to technically demanding contact surfaces in electronics, precision engineering and measurement technology, where reliability and long service life are critical. In data technology, the gold plating ensures reliable, interference-free signal transmission.
Gold-cobalt (AuCo)
Gold-cobalt platings provide a particularly hard, abrasion-resistant surface combined with excellent conductivity. The cobalt content produces a fine-crystalline structure with high microhardness and very good corrosion resistance. This coating is used, among other things, for plug contacts, switching contacts and heavily loaded functional parts.
Gold-nickel-indium (AuNiIn)
Gold-nickel-indium platings combine outstanding corrosion resistance with stable tribological properties. They impress with a homogeneous appearance, high layer stability and excellent contact reliability even under changing environmental conditions. Particularly in medical technology, sensor technology and precision engineering, this gold layer offers a solution of high technical and visual quality.
The benefits of galvanic
gold plating
Our gold plating is particularly gentle because we work with low process temperatures.
The gold is applied on all sides extremely evenly, so that in our electroplating shop high layer thicknesses can also be achieved depending on the gold electrolyte used.
Gold-plated surfaces have a particularly noble appearance and underline the premium character of your product.
The multi-layer build-up with copper and nickel provides additional brilliance and a lastingly attractive look.
In addition, we also offer nickel-release-compliant and nickel-free plating systems.
Excellent corrosion protection
Excellent electrical conductivity
Uniform, precise layer build-up
Looking for the ideal gold alloy?
We guide you to your goal!
Choosing the right alloy, layer thickness and substrate is complex. Benefit from our expertise: we support you in the selection and provide tailored solutions for your specific requirements. Together we find the optimum gold plating for your product.
100% precision
Personal, direct, uncomplicated
Broad service spectrum
Decorative and harder
our gold alloys
A special feature of our gold platings: we work with alloys containing foreign metals, allowing us to achieve different gold tones. As a rule, the gold alloy contains a maximum of 0.3 percent by weight of foreign metal.
Another plus: the gold layer has a higher hardness, which is why we also speak of hard gold plating.
A pure gold layer has a hardness of 80-90 HV (Vickers hardness).
Our hard gold layers achieve a hardness of 180-250 HV.
Elegant look with function
Significantly higher wear resistance
Resistant to abrasion and environmental influences
Gold plating –
as a contract service or in-house
On the one hand we plate parts produced in-house with gold, on the other hand we coat products delivered by our customers. This applies both to luxury goods such as jewellery and to technical components such as electrical contacts.
Get in touch with our experts.
Maximum flexibility
No capital investment
Consistent premium quality
FAQ
Frequently asked questions about gold plating
How thick is an electroplated gold layer?
The layer thickness depends on the function – from thin decorative deposits to heavier layers for highly stressed contacts. We define the right thickness together with you and document it reproducibly.
Is electroplated gold nickel-free and skin-friendly?
For skin-contact applications we can supply coating systems designed to limit nickel release. This makes it possible to gold-plate parts such as jewellery or eyewear components in a skin-friendly way.
What affects the price of gold plating?
Layer thickness, the gold price, part size and batch size are decisive. As gold is a precious metal dominating the material share, we calculate each project individually and quote on request.
More surface finishing
Competent
Technical consulting
At SURPRO, the personal relationship with our customers is particularly important. We support you throughout your development and later serial production.
Together we find the right manufacturing process, finishing technique and post-processing option for your product.
Talk to our experts.
100% precision
Personal, direct, uncomplicated
Broad service spectrum
