Gold Plating typically is yellow in color and can range from matte to a bright reflective finish. Pure gold is considered to be 24k while alloy gold can vary from 14k to 23k gold. Applications range from decorative, electronics, medical implant to spacecraft components. Corrosion resistance is excellent and provides excellent tarnish resistance. Contact resistance is low and solderability very good. Because of the varied options in chemistries and the performance characteristics each may produce, it is recommended that customers contact one of our engineering team members for guidance.Above used from Electronic Precision Specialties, Inc.