Gold Plumb Solders – Otto Frei Yellow Gold Plumb Solders, 14K & 18K

Reach for a plumb gold solder when a seam has to carry the same karat as the metal around it. These yellow gold plumb solders are made to the plumb standard, so the gold content matches the karat mark: 14K solders are .585 gold and 18K solders are .750 gold. All of them are 100% cadmium free.

Unlike repair solders, which use a lower gold content for easier flow, plumb solders are built for manufacturing applications where holding true gold quality matters. Because they carry that full gold content, they flow at higher temperatures than repair solders, which suits jewelers who need strength, integrity, and compliance with gold standards. Each piece weighs approximately 1 DWT.

Features

• 100% cadmium free formulation
• Made to the plumb standard, so karat content matches the mark
• 14K solders contain .585 gold; 18K solders contain .750 gold
• Available in Extra Easy, Easy, Medium and Hard flow grades
• Designed for manufacturing applications requiring karat accuracy
• Suitable where long-term durability and gold compliance are critical

Available Options

Notes

Use plumb gold solders for new jewelry creation where karat accuracy and long-term durability are critical. For repair work, consider lower-temperature repair solders instead.