Stay-Silv® Black Flux

An all-purpose, high-temperature flux for use in silver brazing. Formulated for applications where the work is subjected to rapid, localized heating. Particularly useful in applications where large amounts of refactory oxides may form, such as with stainless steel alloys. Use with stainless steel, carbide, heavy parts, prolonged heating cycles.

Typical Application: Use Stay-Silv Black Flux on heavy parts, where localized overheating may occur, and where parts are heated over a prolonged period. Stay-Silv Black Flux is also suggested when brazing stainless steel.

Weight	1 Pounds (Lb)
Width	4.75 Inches (In)
Height	3.375 Inches (In)
Country of Origin	MEX
Length	4.75 Inches (In)
Brand	Harris
Fluidity Rating	None provided by manufacturer
Liquidus	None provided by manufacturer
Silver Content	None
Solidus	None provided by manufacturer
Temperature Melt/Flow	1,050°F to 1,800°F (565.5°C to 982.2°C)
Application	Formulated for those brazing applications where the work is subjected to rapid, localized heating or where longer brazing times are encountered. It is particularly useful in applications where large amounts of refractory oxides may form, such as with stai
AWS Specifications	AWS A5.31 TYPE FB3C; AMS 3411-D; O-F-499 Type B
Color	Gray
Composition	Brazing Flux - Water 15-25%; Potassium Borates 50-75%; Boric Acid 1-3%; Potassium Fluorides 10-20%; Boron 1-3%