Master Alloys for Jewellery Solder Production

UNIBRAX® is a family of master alloys developed for the production of gold and silver solder alloys for jewellery manufacturing. Designed to ensure reliability, colour consistency and controlled melting behaviour, UNIBRAX® supports the production of high-quality solder wires and plates across different fineness standards. Its formulations are engineered to guarantee excellent wettability, stable flow and consistent soldering performance in demanding jewellery applications.

Engineered for Reliable Jewellery Soldering

UNIBRAX® is designed to provide stable and predictable soldering behaviour across a wide range of jewellery manufacturing applications. Its metallurgical formulations ensure controlled melting ranges and excellent wettability, supporting clean and precise solder joints. The family includes solutions developed for different finenesses, colours and soldering temperatures, allowing manufacturers to select the most suitable alloy according to the specific assembly process. The controlled behaviour of the solder improves process consistency while helping reduce visible joints and colour mismatch. Thanks to its reliability and production versatility, UNIBRAX® supports both industrial manufacturing environments and highly precise jewellery assembly operations.

UNIBRAX
  • Controlled melting ranges for precise soldering operations
  • Excellent wettability and metal flow
  • Suitable for the production of solder wires and plates
  • Consistent colour matching with jewellery alloys
  • Reliable performance across different jewellery applications

Frequently Asked Questions

UNIBRAX® is specifically developed for the production of solder alloys and can be easily processed into solder wire for chain manufacturing and other jewellery applications.

Yes. UNIBRAX® allows manufacturers to produce customized solder alloys using their own precious metals, providing flexibility for chain production, jewellery assembly

The UNIBRAX® range includes solutions for different gold colours and carats and silver alloys, helping achieve a close colour match with the base metal.Progold’s team could recommend the most suitable UNIBRAX® based on your alloy, colour, manufacturing process and soldering requirements