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Highly dispersible precipitated silica with optimized particle size distribution for enhanced reinforcement.
Low abrasivity, minimizing wear on processing equipment and extending service life.
Excellent surface activity and silanol density for strong polymer–filler interaction in elastomeric systems.
Consistent batch-to-batch performance ensured by Solvay’s strict quality control and GMP-compliant manufacturing.
Free-flowing granular form enabling dust-free handling and improved dosing accuracy in industrial mixing lines.
High-performance passenger car tire treads requiring low rolling resistance and high wet grip.
Industrial rubber goods including conveyor belts, hoses, and vibration dampers.
Technical elastomer compounds for sealing systems and dynamic automotive components.
Silicone rubber formulations where controlled rheology and mechanical reinforcement are critical.
Specialty adhesives and sealants demanding thixotropic control and filler stability.
| Chemical Type | Precipitated amorphous silica (SiO₂) |
| Product Form | Free-flowing granules |
| Appearance | White to off-white granular solid |
| Bulk Density (Loose) | ~450–550 g/L |
| Moisture Content (105 °C, 2 h) | ≤ 1.5 wt% |
| Ignition Loss (1000 °C) | ~6–8 wt% |
| pH (4% aqueous slurry) | 6.0–7.5 |
| Primary Applications | Elastomers, silicone rubbers, adhesives & sealants |
Q1: What is the primary function of Solvay ZEOSIL 115GR Pigment in polymer systems?
A: Solvay ZEOSIL 115GR Pigment is a high-purity, surface-modified silica-based pigment designed primarily to provide controlled rheology, improved dispersion stability, and enhanced matting or anti-blocking performance in solvent-based and high-solids coatings, inks, and specialty polymer formulations.
Q2: How does ZEOSIL 115GR differ from standard fumed silica grades?
A: Unlike conventional fumed silica, ZEOSIL 115GR features a tailored surface chemistry optimized for pigmentary applications—offering superior compatibility with organic media, reduced gelation tendency, and more predictable viscosity response without compromising transparency or gloss control in clear-coat systems.
Q3: Is ZEOSIL 115GR suitable for use in food-contact coatings?
A: While ZEOSIL 115GR is manufactured under strict quality controls and meets general industrial purity specifications, it is not pre-qualified for direct food-contact applications. Formulators must conduct full regulatory evaluation—including migration testing and compliance verification—based on their specific end-use and regional requirements.
Q4: What are recommended handling and dispersion practices for optimal performance?
A: For best results, pre-wet ZEOSIL 115GR with a portion of the carrier solvent or resin before high-shear mixing. Avoid prolonged dry blending; use dispersers or bead mills with appropriate media size and energy input to achieve uniform deagglomeration without excessive heat buildup or mechanical degradation.
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E-mail: wangxingqiang@ericwchem.com
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