Potassium fluorosilicate

Potassium fluorosilicate (CAS 16871-90-2), also known as potassium hexafluorosilicate and potassium silicofluoride, is an inorganic salt used across industrial processing and surface treatment applications.

It functions primarily as a curing agent, flux, and biocidal component in formulations where controlled fluoride release and silicate reactivity are required for specific chemical processes.

In building and construction, it acts as a hardening and densifying agent in concrete treatments, reacting with calcium compounds to improve surface durability and overall structural integrity.

Agricultural formulations use it as an active component in pesticide and soil treatment products, where controlled fluoride activity targets specific pest or pathogen profiles effectively.

Textile and paper processing operations apply it as a flame-retardant additive and surface treatment agent to improve substrate resistance against environmental factors and heat exposure.

In ceramics and glass manufacturing, it functions as a flux and opacifier, lowering firing temperatures and improving surface finish in finished products across various industrial lines.

Potassium fluorosilicate is supplied as a white crystalline powder. Technical grade is the standard commercial form, with purity levels typically specified at 98% or higher for use.

Packaging is available in bulk bags and smaller industrial units to suit both large-scale manufacturing and specialized formulation use within the global chemical supply chain.