Aluminium hydroxide (ATH) is a highly multifunctional filler celebrated for its remarkable characteristics. Its notable high whiteness, low oil absorption, and stable performance at ambient temperatures make ATH widely recognized for its effectiveness as both a flame retardant and an insulating agent. One of its key attributes is its self-extinguishing capability, which significantly enhances safety across various applications. Additionally, ATH is environmentally friendly, as it does not release any toxic or corrosive gases during thermal decomposition. Its versatility allows it to be utilized in a diverse range of industries, serving as a filler in solid surface materials, SMC/BMC compositions, glass fiber reinforced plastics (FRP), epoxy potting compounds, and many other composite materials.
ATH Specification List
| Brand |
Chemical composition |
DOP |
Whiteness |
Particle size |
Moisture |
| AI(OH)2≥ |
SiO2 ≤ |
Fe2O2 ≤ |
Na2O ≤ |
Na2O2 ≤ |
ml/100g ≤ |
% ≥ |
D50 um |
+325mesh%≤ |
% ≤ |
| H-WF-14SP |
99.6 |
0.03 |
0.02 |
0.20 |
0.02 |
30 |
95 |
16±3 |
12 |
0.3 |
| H-WF-25SP |
99.6 |
0.03 |
0.02 |
0.20 |
0.02 |
30 |
94 |
25±5 |
– |
0.2 |
| H-WF-25MSP |
99.6 |
0.03 |
0.02 |
0.20 |
0.03 |
21 |
95 |
– |
– |
0.2 |
| H-WF-50SP |
99.6 |
0.03 |
0.02 |
0.20 |
0.02 |
30 |
93 |
50±10 |
– |
0.2 |
| H-WF-75SP |
99.6 |
0.03 |
0.02 |
0.20 |
0.02 |
30 |
92 |
85±15 |
– |
0.1 |
| H-WF-90SP |
99.6 |
0.03 |
0.02 |
0.20 |
0.02 |
30 |
91 |
95±20 |
– |
0.1 |
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