Nickel is the world’s main contact allergen. In Europe, around 15 to 20
percent of women and around five percent of men are sensitive to nickel
- in women under 30, this figure rises to around 40 percent. Once
someone has developed a sensitivity, constant or repeated contact with
the allergen causes the skin or mucus membrane to react with
inflammation (e.g. skin rash).
Advantages
- Copper-tin-(zinc) alloy coatings of white or yellow colour
- Nickel-free
- Free of heavy metals such as Cr, Pb, Co, Th, etc.
- Can be combined with precious metals
- Diamagnetic
- Resistant to tarnishing and corrosion
- Excellent layer thickness distribution
- Can be lacquered
- Does not cause allergic reactions in the way that nickel does
