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| Product Name | 1.5-25 µm High-Modulus Silica Spacer Microspheres with Low Ionic Contamination |
| Catalog No. | IGM-HMM-0273 |
| Description | Alta DiagnoTech silica spacer microspheres have a narrow particle-size distribution for precise display-cell gap control. High mechanical strength, low ionic contamination and NIST-traceable size calibration support frame and in-cell spacing applications. |
| Intended Use | Side-frame spacers and in-cell spacers for TN and STN display assemblies. |
| Principle / Technology | Monodisperse silica microspheres mechanically establish a controlled cell gap without damaging the substrate. |
| Performance Range / Specifications | Particle range 1.5-25.0 µm with 0.10 µm increments; average-size tolerance ±0.05 µm; CV 1.0-2.5%, with catalog limits ≤2.5% or ≤2.0% by application series; 10% compression modulus >4,500 kgf/mm²; specific gravity 2.1; refractive index 1.46 at 20 °C and 589 nm. |
| Product Form | Silica spacer microspheres |
| Quality Control | Particle size is measured by Coulter counter and calibrated with NIST-traceable standards. Control limits: Fe, Ca, K and Na ≤2 ppm each; chloride ≤1 ppm. |
| Key Features | 1.5-25.0 µm range 0.10 µm size increments CV as low as 1.0% NIST-traceable particle-size calibration |
| Regulatory / Compliance | RoHS compliant; Cd, Pb, Hg, hexavalent chromium, PBBs and PBDEs not detectable. |
| Specific Gravity | 2.1 |
| Product Type | Silica spacer microspheres |
| Function / Efficacy | Precise, contamination-controlled display-cell gap spacing. |
| Customization | Particle sizes below 1.5 µm or above 25.0 µm may be customized. |
| Thermal Stability | No thermal decomposition reported under the stated in-air test |
| Chloride Content | ≤1 ppm by ion chromatography |
| Matrix | Silica |
| Particle Size | 1.5-25.0 µm; average-size tolerance ±0.05 µm |
| Refractive Index | 1.46 at 20 °C and 589 nm |
| Coefficient of Variation (CV) | 1.0-2.5%; catalog limits ≤2.5% or ≤2.0% depending on application series |
| Particle Size Increment | 0.10 µm |
| 10% Compression Modulus | >4,500 kgf/mm² |
For research use only, not for clinical use.
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