Tin

Tin is a very soft metal with a low melting point, and even lower melting temperatures can be achieved using alloys (lead, copper, silver). It is highly suitable for electronics, which is a more recent type of application. Tin has been found in households for thousands of years because it is non-toxic. The predecessor of today's aluminium foil was tin foil, which was made from tin.

At RERO AG, almost one hundred percent of tin is used for electronics and electrical engineering. Since lead is banned as an alloying partner in the consumer sector, the initial trend shifted towards tin-copper alloys. However, this did not catch on, and today, pure tin is predominantly used for plating.

Pure tin is deposited from several different types of tin baths. While the well-known bright tin has proven itself for most electronics applications, matt and semi-bright tin baths are often used today due to the increasing transition to reflow soldering processes. Furthermore, all tin types can be treated with a post-dip solution, which ensures solderability over a longer period of time and can help them endure longer transport routes.