FineGray

FineGray is a term used to describe a family of ultra-fine gray pigments and composite materials marketed for use in coatings, plastics, and ceramics. The FineGray family is defined by a controlled particle size distribution and dispersion stability, providing consistent neutral gray tones across different substrates and processes.

Composition and properties typically center on a blend of inorganic pigments with mineral carriers milled to sub-micrometer scales. The resulting pigments are designed to deliver a neutral gray hue, high opacity in many systems, good weather resistance, and strong lightfastness. They are formulated to be inert in common binders and compatible with water- and solvent-based formulations, enabling broad applicability.

Manufacturing and branding: Several pigment producers offer products under the FineGray label, with variations in particle size, refractive properties, and binder compatibility. Some lines emphasize automotive or industrial coatings, while others target printing inks or ceramic glazes. Quality control typically includes particle size analysis, tint strength measurements, and dispersion testing to ensure consistency.

Applications: FineGray pigments are used in architectural and industrial coatings to achieve stable gray tones, as well as in plastic formulations and ceramic glazes where a uniform neutral gray is required. In printing, FineGray can serve as a base pigment for grayscale rendering and tonal balance in multi-ink systems.

History and reception: The term was popularized in the late 1990s by multiple pigment manufacturers and has since referred to a category rather than a single fixed formulation. The definition and performance characteristics of FineGray can vary between suppliers and product lines.

See also: Payne's Gray, Mars Gray, Neutral gray pigments.