14K,18K & 19K Otto Frei White Gold Plumb Solders

Otto Frei Plumb White Gold Solders are manufactured to the same gold content as marked — meaning a solder labeled 14K contains the true plumb standard of .585 (14K) gold. Unlike repair solders, which are intentionally formulated below karat mark for easier flow, these plumb solders are designed for manufacturing applications where strict gold quality standards must be maintained. Note that plumb solders flow at higher relative temperatures than their repair solder counterparts.

Available in 14K, 18K, and 19K white gold formulations, these solders span a range of flow temperatures and grades — from Extra Easy through Hard and Weld — giving jewelers precise control over sequential soldering operations. All formulas are cadmium free and nickel based.

Features

• True plumb gold content — gold content matches the karat mark exactly
• Designed for manufacturing — maintains gold quality standards required for production work
• Multiple grades available — Extra Easy, Easy, Medium, Hard, and Weld for sequential soldering
• 14K, 18K, and 19K formulations — broad karat range to match the alloy being worked
• Cadmium free — safer for the studio environment
• Nickel-based white gold formula — consistent with standard white gold alloy systems
• Sold in sheet form — approximately 1 DWT per sheet

Specifications

Available Options

Notes

• Plumb solders flow at higher relative temperatures than repair solders — plan torch work and sequential soldering accordingly.
• These solders are intended for manufacturing use, not general repair work where lower-karat repair solders are typically preferred.

California Prop 65 Warning:
Cancer and Reproductive Harm. www.P65warnings.ca.gov.