Filled gold is made from a “sandwich” of gold alloy and base
metal. A billet comprised of a base metal (brass?) sheet between
2 thin gold sheets is formed and then rolled to the thickness
desired. A common designation is 1/20 10k GF meaning 1/20 of the
thickness is karat gold (1/40 on each side). A common item made
from GF is the old 20 year pocket watch, named so because the
gold thickness could stand up for 20 years of usage. Gold plate
on the other hand is generally only a few millionths of an inch
thick. GF can be soldered, worked, and buffed to a very limited
extent, and is excellent for stamping applications, but doesn’t
have much use in the jewelers shop except for some repairs to
Jeffrey Everett, jewelry craftsman
Handmade 18K, 22K, and platinum gemstone jewelry.
Diamond setting, rubber/metal molds, casting, lapidary
Die and mold engraving, plastic patterns for casting.
Jewelry design, cad/cam, milling, scroll, filigree, & more.
P O Box 2057 Fairfield IA 52556 515-469-6250