Ottoflux Paste Flux

OttoFlux Paste Flux is a creamy white silver brazing flux designed to promote clean, reliable solder joints while protecting metal surfaces during heating. Active up to 1600°F (870°C), it supports strong wetting and bonding across a wide range of metals commonly used in jewelry and metalworking. The smooth paste consistency spreads easily and remains stable without hardening or crystallizing when stored properly.

Features

• Creamy white silver brazing paste flux for jewelry and metalworking
• Active and protective up to 1600°F (870°C)
• Suitable for gold, silver, platinum, copper, copper alloys, ferrous metals, nickel, and carbides
• Contains no potassium bifluoride for reduced skin irritation
• Paste consistency may be used as supplied or diluted with water
• Flux and residue are soluble in hot water for easy cleanup
• Two-year shelf life when stored properly
• Also known as Superior No. 6 Paste Flux

Specifications

Available Options

Notes

OttoFlux may be used directly from the container or diluted with water to achieve a thinner consistency. Warming the flux to approximately 140–180°F (60–82°C) reduces viscosity and increases activity. Always apply flux to clean metal surfaces before heating and soldering. Residues can be removed with hot water (at least 140°F/60°C).

Avoid contact with skin, eyes, or clothing. Use appropriate protective equipment, including safety goggles and gloves, and ensure adequate ventilation during brazing operations. Dispose of flux residues according to local and federal environmental guidelines.

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