5 LBS Assay Silica 70 Mesh

The 5 LBS Assay Silica 70 Mesh is an essential component in gold and precious metal flux. This SiO2-based material serves as an ingredient of assaying flux (or flux thinner) for melting or smelting gold and other precious metals, helping achieve reliable fusion and consistent results.

Designed for professional labs and refiners, its 70 mesh size ensures easy dosing and uniform mixing into flux blends, delivering stable performance in high-temperature fusion and slag management. This silica-based flux ingredient enhances reaction consistency across batches, reduces impurities, and pairs well with other flux components used in precious metal assay workflows. It integrates seamlessly with standard assay flux recipes and supports repeatable, predictable results.

• SiO2-based formula for stable, high-purity flux
• 70 mesh size for precise dosing and even mixing
• Ideal as an assaying flux or flux thinner in gold and precious metals refining
• Enhances fusion quality and slag separation during melting and smelting

Add to cart today to support accurate assays and reliable metallurgical results.