Why is platinum plating popular?
Platinum plating is very popular for many reasons. Platinum does not oxidize or tarnish. Platinum plating is used for catalytic converters (automotive), surgical and medical equipment, and low voltage, low current applications. A thin deposit of platinum protects the substrate very well and has made platinum very popular for a coating selection. Platinum plating is used for anodes and for protecting substrates from harsh or chemical environments.