Onyx Elite® 255 has excellent color and low resin demand, with air release optimized for solid surface. It is an Alumina Trihydrate (ATH) with an average median particle size of 30 microns.

Onyx Elite® 255 is a high purity alumina trihydrate used in the manufacture of solid surface cast polymers. Improved physical performance of solid surface materials results from the selected particle size distribution of Onyx Elite® 255. This product yields low viscosities, excellent air release, reduced matrix settling and a very homogenous casting. Onyx Elite® 255 has a broad particle distribution with a controlled top size (<5% on 100 mesh) which yields excellent packing characteristics. The median particle diameter, controlled particle distribution and low contaminant level of Onyx Elite® 255 aid manufacturers in obtaining good cure, good translucency and excellent color, when compared to other products offered for solid surface applications.