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30-100 Mesh
SEPPE CENOSPHERE
2621900090
SEPPE Cenosphere is a lightweight hollow aluminosilicate microsphere used as a functional mineral filler for oilfield cementing, coatings, construction materials, refractory systems, plastics, composites, and thermal insulation products. Common mesh ranges include 30-100 Mesh, with custom particle size and density options available according to application requirements. Floatation rate, pH, iron content, and other quality targets can be adjusted for specific applications.
▸ Cenospheres are naturally formed hollow ceramic microspheres recovered and purified from fly ash. Each sphere has a rigid aluminosilicate shell and a sealed hollow interior, creating low density, thermal insulation, and mineral stability in one particle.
▸ SEPPE supplies general cenosphere grades for broad industrial use, with optional application-specific grades and testing protocols for oilfield cementing, coating, and insulation systems.
▸ This page is arranged as a complete Cenosphere material overview: product function, grade selection, applications, physical properties, quality control, documents, packaging, FAQ, and related resources.
| Grade / Model | Recommended Application | Key Specification Focus |
|---|---|---|
| General Cenosphere 30-100 Mesh | General lightweight filler, construction, refractory, coatings, industrial blends | Mesh size, bulk density, true density, chemical composition |
| Oilfield Cementing Grade | Oil well cementing and low-density slurry systems | Floatation rate, density, sieve analysis, moisture, compressive strength |
| Coating Grade | Paints, coatings, surface finishing, insulation coatings | D50/D98, pH value, iron content, dispersion, true density |
| Custom Mesh / Density Grade | Plastics, foundry, refractory, thermal insulation slurry | Target particle size, density range, color, chemistry, application testing |
| General Cenosphere Physical & Chemical Properties | |
| Model | 30-100 Mesh / Custom Mesh |
| Shape | Hollow spherical powder |
| Color | Light grey to white |
| SiO₂ | 50-60% typical |
| Al₂O₃ | 25-40% typical |
| Bulk Density | 0.30-0.45 g/cm³ typical |
| True Density | 0.70-0.90 g/cm³ / grade dependent |
| Particle Size | 30-100 Mesh typical; custom mesh sizes available |
| Mohs Hardness | 5-6 |
SEPPE operates an ISO 9001:2015 certified quality system with one unified workflow and application-specific testing standards. General, oilfield, and coating grades are supplied with batch inspection records, and COA can be provided according to order requirements.
| Test Parameter | Test Method | Specification | Typical Value | Frequency |
|---|---|---|---|---|
| Floatation Rate | Visual Inspection + Water Floatation | ≥ 97% | 98% | Every Batch |
| Bulk Density | ISO 787-10 | 0.30-0.45 g/cm³ | 0.38 g/cm³ | Every Batch |
| True Density | ISO 787-10 (Pycnometer) | 0.75-0.90 g/cm³ | 0.82 g/cm³ | Every Batch |
| Particle Size Distribution | Sieve Analysis (30M-240M) | 0-500 μm (106-250 μm dominant) | 106-250 μm | Every Batch |
| Moisture Content | ISO 787-2 (105°C, 2h) | ≤ 0.3% | 0.12% | Every Batch |
| Chemical Composition | XRF Analysis | SiO₂ 50-60%, Al₂O₃ 25-40%, CaO 1-1.5%, Fe₂O₃ ≤5% | SiO₂ 55%, Al₂O₃ 30%, CaO 1.2%, Fe₂O₃ 4% | Every 3 Batches |
| Compressive Strength | Hydraulic Pressure Test | 30-50 MPa | 40 MPa | Monthly |
| Test Parameter | Test Method | Specification | Frequency |
|---|---|---|---|
| Particle Size Distribution | ISO 13320:2009 (Laser Diffraction) | D50=45-60μm, D98=105-140μm | Every Batch |
| pH Value | ISO 787-9 (10% Aqueous Suspension) | 7.0 ± 1.0 | Every Batch |
| Iron Content (Fe₂O₃) | X-Ray Fluorescence (XRF) | < 6% | Every Batch |
| True Density | ISO 787-10 (Pycnometer) | 0.70-0.90 g/cm³ | Every Batch |
| Moisture Content | ISO 787-2 (105°C, 2h) | ≤ 0.3% | Every Batch |
| Chemical Composition | X-Ray Fluorescence (XRF) | SiO₂ 55-65%, Al₂O₃ 27-33% | Every 3 Batches |
| Dispersion Test | High-Speed Mixing + Hegman Gauge | No agglomeration, uniform dispersion | Monthly |
▸ SEPPE laboratory testing covers particle size, XRF chemistry, bulk density, true density, moisture content, floatation, and application performance.
▸ Each batch receives a unique ID and retained sample. SGS, BV, or other third-party inspection can be arranged before shipment.
▸ 600 kg jumbo bags — approximately 20 bags per 40' High Cube FCL (total ~24 MT)
▸ 40' High Cube container recommended due to low bulk density (0.30-0.45 g/cm³)
▸ Custom packaging available upon request
▸ 10-year shelf life when stored in dry conditions
▸ Reliable container shipment to all major ports worldwide
▸ For general lightweight filling, 30-100 Mesh cenosphere is commonly selected according to the required particle size and density. For oilfield cementing, coatings, and insulation systems, SEPPE can recommend application-specific grades based on slurry density, pH, iron content, floatation rate, and dispersion requirements.
▸ Yes. SEPPE can recommend mesh size, true density, floatation rate, pH, iron content, and chemical targets according to your application.
▸ Yes. Every shipment can include batch COA with test results, production date, batch number, and testing methods.
▸ Yes. SGS, BV, or other independent third-party inspection can be arranged before shipment.
▸ Yes. Samples, TDS, COA, and grade selection guidance are available for coating, oilfield, construction, refractory, plastic, and composite trials.
▸ 0.8g/cm3 Cenosphere for Petroleum Cementing
Contact SEPPE to discuss mesh size, density target, application-specific testing, OEM packaging, or to schedule a factory audit.
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