Description
1. WHITNESS – 82 – 83 %
2. FINENESS – 99.2 % Passing on 300 Mesh
3. CaO – 8-9 %
4. BD (Loose) – 045 Grams/CC (+-1%)
5. ASBESTOS (FREE SILICA CONTENT) – 0.3% Max
Flame Retardant & Smoke Suppressant
AL FR™ is produced by exceptional engineered production process. It works on the basis of heat sinking and endothermic dehydration characteristics that enable alumina trihydrate to retard the burning of polymers. AL FR™ release about 35% of its weight in the form of steam at approximately 220°C (428°F). This water vapor quenches the surface of surrounding materials while restricting the access of oxygen to the burning polymer and combustible and potentially toxic off-gases are also diluted by this water vapor. AL FR™ also improves the Arc-track resistance in electric composites by absorbing generated heat, due to the endothermic dehydration water vapor slows the surface degradation of the polymer and the resultant formation of the carbonized film or track.
The quantity of ALFR™ added to the organic matrix depends on the required flame retardance, the properties of the end products and the cost of the mixtures. ALFR™ is better for environmental compliance as it contain no halogens or heavy metal and replaces more expensive flame retardants based on antimony metal or chlorinated and brominated (halogenated) compounds.
TYPICAL PROPERTIES
| PROPERTIES |
UNITS |
AR FR 2 |
AR FR 3 |
AR FR 5 |
AR FR 9 |
| Brightness |
% |
96±2 |
92±2 |
92±2 |
92±2 |
| Bulk Density |
gm / ltr |
300±3 |
420±30 |
465±30 |
620±30 |
| Oil Absorption |
gm / 100 gm |
30 ± 3 |
31 ± 3 |
31 ± 3 |
28 ± 3 |
| Moisture Content (Ex-works) |
% |
max. 0.4 |
max. 0.4 |
max. 0.4 |
max. 0.4 |
| Residue on |
ppm |
max. 100 |
max. 100 |
max. 100 |
max. 100 |
| D(50) on Laser Differaction |
y |
1.8 ± o.2 |
3± 0.2 |
5 ± 0.2 |
9 ± 0.2 |
| ATH Content |
% |
97 ± 3 |
97 ± 3 |
97 ± 3 |
97 ± 3 |
KEY BENEFITS
Flame Retardance
- Alternative to halogens
- Heat removal and smoke suppression through water vapor generation
- Char Formation
Processing
- Better wet out, higher loading levels
- Improved performance through better reinforcement
- Lower resin demand Sheath
APPLICATIONS
- Cable Compounding
- PVC Sheet
- FRP/SMC compounding
- Rubber sheet & compounding
