Electroplating creates a barrier, protecting the substrate from conditions like moisture, harsh chemicals, and abrasion. - Adding a thin layer of precious metal to the surface of a metal spring creates a lustrous, attractive look. - Electroplating springs with silver or copper enhances electrical conductivity. - Several metals, including gold and zinc-nickel, are resistant to high temperatures. - Electroplating springs can boost the strength and durability of substrate materials. - The thickness of parts increases with electroplating.