Onyx Classica® Series

White hydrated aluminas are produced for applications where very low impurities and high whiteness are required, such as solid surface and cast polymer production. Almatis white hydrates have the excellent translucency especially required in onyx applications.

Almatis offers three products in the Onyx Classica® Series: OC-1000, OC-1500 and OC-2000. These products are ultra-bright hydrates with exceptional high-purity and whiteness and consistent particle sizes required in cast polymer manufacturing. In addition, they add halogen-free, flame-retardant, smoke-suppressant properties to cast polymer. They are easy to pigment and are compatible with most resin formulations.

Onyx Classica® Applications

OC-1000, OC-1500 and OC-2000 are the whitest hydrated aluminas from Almatis, and are suitable for the production of solid surface castings and the manufacture of granite color chips.

OC-2000 is a very translucent hydrated alumina recommended for cultured onyx formulations.

Benefits of Onyx Classica®

  • Organic-free ATH with whiteness significantly exceeding other hydrated aluminas
  • Flame retarding, halogen-free and smoke suppressing
  • Easy to pigment and disperse
  • Compatible with most resin systems

Why Almatis Onyx Classica® is Premium

  • Broad product line with many particle sizes available
  • Ultra bright with exceptionally high purity, whiteness and consistent particle sizes
  • Quality assurance programs deliver high product quality

Onyx Classica® Products

The different particle size formulations of the Onyx Classica Series allows manufacturers to design casting mixes to their own specific requirements.

Product Description
OC-1000 Whitest pure hydrated alumina available from Almatis, with 14 micron particle size
OC-1500 Low viscosity, high translucency, white-grade hydrated alumina of 27 micron particle size
OC-2000 Very translucent hydrated alumina offering a consistent white color and 46 micron particle size