Zinc Oxide
LOW SMOKE SUPPRESSANT & FIRE RETARDENTS
Aluminum trihydrate is the most consumable and applicable inorganic additive flame retardant that does not only resist firing but also prevents from smoke, dropping or toxic gas. Alumina trihydrate contains 3 molecules of water; upon heating above 220°C up decomposes into aluminium oxide & water. This irreversible, endothermic reaction process makes alumina trihydrate an effective flame retardant.
Widely used as fire retardant filler in applications like polymer composites, cable compounds, artificial marble, FRP, SMC, DMC moulding, synthetic rubber, coating and construction materials.
PHYSICAL PROPERTIES
| PROPERTIES | UNIT | ATH 5 | ATH 25 |
| Physical State | – | White powder | White powder |
| Brightness ISO | % | 94 ± 2 | 94 ± 2 |
| PSD ( 50 ) Malvern | µ | 2.2 ± 0.3 | 4.0 ± 0.5 |
| Residue 325 Mesh | % | 0.2 Max | 0.2 Max |
| Purity Al (OH3)3 | % | 99.5 | 99.5 |
| Bulk Density Loose | gm/lit | 160 – 240 | 220 – 280 |
| Oil Absorption | gm/100gm | 32 – 40 | 28 – 35 |
| Moisture | % | 0.0 – 0.5 | 0.0 – 0.5 |
| LOI | % | 34 – 35 | 34 – 35 |
| BET Surface Area | m²/g | 6 – 8 | 4 – 6 |
| Specific Gravity | gm/cc | 2.42 | 2.42 |
Key Benefits
- Better flame retardant & low smoke suppressant, replacement of high value metal fire retardants
Application
Ceramic
Paints & Coating
Construction
