TTU-908 - Weldcote White Silver Brazing Flux Paste - 1lb Jar

Technical Overview of Weldcote White Paste Flux

The Weldcote White Paste Flux (SKU: TTU-908) is a premium chemical agent engineered for general-purpose silver brazing applications in industrial and manufacturing environments. This flux is formulated to meet the stringent requirements of metal joining processes, providing a protective atmosphere that prevents oxidation during the heating cycle. It is active within a temperature range extending up to 870°C (1,600°F), making it suitable for use with a wide variety of silver brazing filler metals. The chemical composition is designed to effectively dissolve surface oxides on base metals, thereby reducing surface tension and promoting rapid, uniform wetting and capillary action of the molten alloy.

Compatibility is a key feature of this product; it is effective on copper, copper-based alloys (such as brass and bronze), mild steel, stainless steel, nickel, and carbides. It is typically classified under industry standards similar to AWS A5.31 Class FB3-A, representing a general-purpose flux containing fluorides and borates. The paste exhibits thixotropic rheology, ensuring it remains in place when applied to vertical or overhead joints before heating. Unlike many standard fluxes that may dry out or separate over time, Weldcote White Paste Flux is stabilized to prevent hardening and crystallization, guaranteeing a shelf life of approximately two years under normal storage conditions.

In production settings, the flux's consistency allows for application via brushing, dipping, or automated spraying systems. Post-process cleaning is streamlined due to the water-soluble nature of the flux residue. Removal of residue is essential to prevent long-term corrosion, and this formulation allows for effective cleaning using hot water or mechanical agitation. This product is an essential consumable for MRO (Maintenance, Repair, and Operations), HVAC/R manufacturing, and precision metal fabrication sectors requiring hermetic and high-strength joints.