Goudfilled

Goudfilled, or gold-filled in English, refers to a method of making jewelry where a substantial layer of gold is mechanically bonded to a base metal core. The outer gold layer is typically an alloy of gold, often 10K to 18K, and the core is a common base metal such as brass, copper, or a nickel-containing alloy. By weight, the gold portion must constitute at least one twentieth of the total mass, a standard used in many markets to distinguish it from simple plating.

The bonding process involves applying heat and pressure to fuse the gold layer to the underlying metal, or using a laminated bonding method. The result is a durable composite that has the appearance of solid gold but at a lower cost. Common labels on goudfilled pieces include indications like 1/20 14K GF or simply GF.

Durability and care are key considerations. Gold-filled jewelry offers greater wear resistance than standard gold plating and can retain its color for many years with proper handling. However, the underlying metal may become exposed if the gold layer is worn through. To extend life, avoid harsh chemicals, remove jewelry during swimming or heavy chores, and clean with mild soap and water, drying thoroughly.

In use and terminology, goudfilled corresponds to the English term gold-filled. It is often chosen as a compromise between affordability and durability, offering a substantial gold layer without the cost of solid gold. It is distinct from gold vermeil (gold plated on sterling silver) and from solid gold.