Onyx Elite® 100 is a high purity, very translucent Alumina Trihydrate (ATH) with an average median particle size of 90 microns.

Onyx Elite 100 is a high-purity, high brightness Alumina Trihydrate specifically designed to provide the translucency, depth of pattern and soft white color that are so important to the cast polymer industry. It has a unique particle size distribution that provides the best combination of viscosity, and air release for cast polymer applications. A closely controlled coarse fraction top size with a large fine fraction yields rapid dispersion in resin, excellent mold flow and wet-out characteristics, resulting in minimal porosity, even pigmentation, and excellent filler reinforcement throughout the molded part. Onyx Elite 100 Alumina Trihydrate is color controlled high purity, low surface area, medium particle-size flame retardant and smoke suppressant Alumina.