High Purity Precipitated Silicon Dioxide Used For Paints Coatings and Printing Inks
Product Description
Applications:
Paints and coatings
Unsaturated polyester resins, laminated resins and gel coats
Elastomers, especially HTV and RTV Silicone rubber
Adhesives and sealants
Printing inks
Cable compounds
Plant protection
Food and Cosmetics
Chemical Data
| Item | Test Standard | Result |
| Exterior | White powder | |
| White extent | Better or equal to standard | |
| S iO2 (dry product)/% | ≥96% | 97% |
| Loss on drying 105deg.C,2h | 4.0_7.5 | 5.0 |
| Loss on ignition(dry product)1,000deg.C 2h (%) | 3.0_5.5 | 3.5 |
| PH value | 6.0-7.5 | 6.5 |
| BET Specific surface area(m2/g) | 190-230 | 210 |
| DBP absorption value(cm2/g) | ≥3.1-3.6 | 3.2 |
| Total iron content(mg/kg) | ≤500 | 280 |
| Total copper content(mg/kg) | ≤30 | 20 |
| Total manganese content(mg/kg) | ≤50 | 25 |
| Sieve residue(45um)% | ≤0.5 | 0.1 |
| Mesh size | 325 | 325 |
General description:
Precipitated silica with special physic-chemical properties, work as reinforcing transparent fillers highly valued in formulation of rubber-based blends. In particular, They lead to enhanced tensile strength, tear strength and abrasion resistance and increase hardness of vulcanized rubbers. On the other hand, They reduce consumption of rubbers and therefore reduce the cost.
Application:
Light-colored, color and High-grade transparent rubber products.
