Our Low-Density Hollow Glass Microspheres are high-performance, micro-scale hollow particles composed of alkali-lime borosilicate glass. Featuring a brilliant shiny surface and an engineered internal void, these microspheres provide a critical balance of ultra-low density and high mechanical strength, making them indispensable for advanced industrial lightweighting.
Engineered for versatility, these spheres offer exceptional thermal insulation, outstanding electrical resistivity, and superior resistance to acids, alkalis, and high temperatures. They are widely integrated into syntactic foams, anti-corrosion coatings, oilfield cementing, and lightweight transportation components to optimize material efficiency and structural performance.
| True Density (g/cm³) | 0.58 – 0.62 | Compressive Strength (psi) | 12,000 / Qualified |
|---|---|---|---|
| Particle Size D50 (μm) | 40 / 33.09 | Particle Size D90 (μm) | 70 / 62.11 |
| Bulk Density (g/cm³) | 0.29 – 0.34 | Floatation Rate (%) | ≥95% / 98% |
| Moisture Content (%) | ≤0.3% / 0.15% | Common Size Range | 2 – 130 μm |
| Chemical Composition | Alkali-lime borosilicate glass | Customization | Available upon request |
Exceptional resistance to acid and alkali environments ensures long-term durability in harsh industrial applications.
High-temperature stability and low thermal conductivity make it ideal for insulation and energy-saving projects.
Significantly reduces the overall weight of composite materials without sacrificing critical structural integrity.
Outstanding electrical insulation performance prevents leakage and protects sensitive electronic components.
Excellent flow characteristics ensure easy mixing and uniform distribution within resins and coatings.
High compressive strength allows the spheres to maintain their shape under significant industrial pressure.
Strict adherence to borosilicate glass purity standards for every production batch.
Tailored particle size distributions from 2μm to 130μm to meet specific project needs.
Optimized logistics for global delivery of fragile mineral and glass materials.
Professional guidance on integrating microspheres into epoxy or resin systems.
Large-scale warehousing ensuring steady supply for high-volume industrial orders.
Continuous improvement in compressive strength and density ratios.
| Performance Metric | Standard Fillers | Hollow Glass Microspheres |
|---|---|---|
| Material Weight | Heavy / High Density | Ultra-Lightweight |
| Thermal Conductivity | Moderate to High | Very Low (Insulating) |
| Structural Volume | Standard | Optimized (Low Shrinkage) |
| Chemical Resistance | Variable | High (Acid/Alkali Proof) |
| Energy Efficiency | Baseline | Significantly Enhanced |
They provide significant weight reduction, improve thermal insulation, and enhance the anti-corrosion properties of the coating while maintaining high mechanical strength.
Yes, while common sizes range from 2-130 µm, we accept customization requests to match your specific technical requirements.
Their low density and high compressive strength allow for the creation of lightweight cements that reduce hydrostatic pressure on the formation without losing structural integrity.
Yes, they are made from alkali-lime borosilicate glass, which provides excellent stability and resistance to most acids and alkalis.
True density refers to the density of the material itself (including the hollow core), while bulk density includes the air space between the particles in a container.
Industries focusing on lightweight transportation, aerospace, high-end construction (energy saving), and marine syntactic foams benefit the most.
Premium closed-cell perlite as lightweight aggregate for construction materials. Reduces material weight while maintaining strength and thermal properties. Low water absorption prevents performance degradation.
Fine grade natural rock flakes specifically for interior wall coatings and artistic finishes. 40-60 mesh size provides smooth texture and excellent coverage. Non-toxic, odorless, and environmentally safe for residential and commercial interiors.
Food-grade expanded perlite for industrial filtration applications. High flow rates, excellent clarity, and consistent performance as filter aid in food, beverage, and pharmaceutical industries.
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Biotite
Particle Size: 3-400mesh
Application: In the architectural coatings industry, stone-like paint and water-based paint are used for decorative purposes.
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(Shijiazhuang, China) – High-performance mineral materials are the cornerstone of product innovation in global industry.
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