COVIA - Nepheline Syenite
Nepheline syenite is an anhydrous-sodium-potassium-aluminosilicate that is a natural, versatile, clean mineral functional filler, which is the high-quality alternative to ground crystalline silica or microcrystalline silica. With similar and, often superior, physical properties, nepheline syenite is the filler replacement you can count on.
Nepheline syenite has low oil absorption and surface area. The low surface area and alkali-aluminosilicate surface chemistry contribute to the ease of wetting, rapid dispersion, and high loading with low viscosity build. Nepheline syenite is also whiter and brighter or less yellow than most mineral powders, yielding cleaner, brighter colors or transparency when required.
Covia’s distinctive nepheline syenite adds performance value to many applications, including plastics, elastomers, paints, coatings, adhesives, sealants, inks, food and beverage packaging, medical supply packaging, greenhouse film, and technical film. This versatifle functional filler enhances durability with outstanding mechanical properties, such as scratch and mar resistance, while improving optical properties with remarkable UV resistance.