The AGS Master Alloy 418R is a specialised alloy for 18K (750) red gold, designed to be mixed exclusively with fine gold (AU). Manufactured in Germany, this alloy ensures rich red tones, improved workability, and superior casting results. It is added to molten fine gold, and flasks should be quenched 10 to 15 minutes after casting. Sold by the gram, it is an essential material for professional goldsmiths and jewellery manufacturers.