HGM Bright White Series
Three grades sharing the Common Series' density and strength profile but processed for enhanced whiteness and low iron content — for appearance-critical formulations such as light-colored masterbatches, coatings, and cosmetic-adjacent plastics.
Grade Comparison
AM-H25M to AM-H38M. Physically near-identical to the Common Series counterparts — the difference is whiteness and iron content.
| Model | Test Pressure (MPa/psi) | Tap Density (g/cm³) | True Density (g/cm³) | Thermal Cond. (W/m·K) | D10 (μm) | D50 (μm) | D90 (μm) |
|---|---|---|---|---|---|---|---|
| AM-H25M | 6.9 / 1000 | 0.15 | 0.25 | 0.050 | 23 | 45 | 78 |
| AM-H30M | 13.8 / 2000 | 0.18 | 0.30 | 0.056 | 19 | 40 | 70 |
| AM-H38M | 37.9 / 5500 | 0.22 | 0.38 | 0.063 | 18 | 40 | 71 |
Compressive strength test per JC/T 2285-2014 or Q/TIPC-J01-2020. Tap density per GB/T 31057.1-2014. True density per JC/T 2285-2014 or GB/T 21782.2-2008. Thermal conductivity per ASTM D5930-01. Particle size per GB/T 19077-2016.
Why Choose Bright White Over Common Series
Physically, AM-H25M/H30M/H38M sit at nearly identical density and compressive strength to their AM-H25/H30/H38 Common Series counterparts — the difference is whiteness and iron content, achieved through raw material and processing control. Choose the Bright White Series when the filler needs to disappear visually into a light-colored formulation rather than introduce a grey or off-white tint.
Applications
Appearance-Critical Plastics & Masterbatches
Maintains formulation whiteness in light-colored plastic compounds and masterbatches where filler tint would otherwise show through.
Coatings
Used in white or light-colored coating systems where low-density filling is needed without compromising the coating's brightness or opacity.
Reflective & Heat-Reflective Coatings
Bright, low-iron microspheres support reflective coating formulations where surface whiteness contributes to reflectivity performance.