Gold plating
Gold (Au) is an excellent choice for components that require good corrosion resistance. Gold plating helps to prevent oxidation of the component, for example, which significantly
improves the permanence of electrical conductivity.
The infrared reflectivity of gold is one of the best among all metals. This property is utilised in the measuring instruments of environmental technology, for example.
Gold-plated stainless steel without nickel interlayer
We offer the following gold coatings:
Hard gold
- The gold content of the coating is about 99.8 %
- About 0.15 to 0.20 % of cobalt co-precipitates, which gives the coating hardness
- The hardness is about 150 HV (Vickers)
- Recommended for applications requiring a reasonable wear and tear
- The most widely used gold plating
Soft gold
- The gold content of the coating is about 99.9 %
- The hardness is about 90 to 100 HV
- Used e.g. in electronic joints where the components are connected to each other by ultrasonic welding, so-called bonding method
- The name bonding gold is also used
NanoDAu
- NanoDAu gold plating containing nanodiamonds is an innovation developed by Eforit Oy. Test results obtained at Tampere Technical Research Institute show that the NanoDAu gold plating endured up to twice the wear of hard gold plating, while friction coefficient was also significantly reduced.
Gold electroplating on a nickel layer
We have developed innovative coating solutions for the technology industry for almost 40 years.
We are happy to help you choose the best-suited coating for your application. As a guarantee of our quality, we can provide an X-Ray analyser measurement certificate.
