Our Low-Density Hollow Glass Microspheres are premium, micro-scale engineered particles crafted from alkali-lime borosilicate glass. Featuring a precision-engineered internal void and a brilliant shiny surface, these microspheres deliver an optimal equilibrium between ultra-low density and high mechanical strength. This unique architecture makes them a critical component for advanced industrial lightweighting and high-performance material engineering.
Designed for maximum versatility, these spheres offer exceptional thermal insulation, superior electrical resistivity, and robust resistance to acids, alkalis, and extreme temperatures. They are widely utilized in the production of syntactic foams, anti-corrosion coatings, oilfield cementing, and lightweight transportation components to significantly enhance structural performance and material efficiency.
| 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 the harshest industrial applications.
High-temperature stability and low thermal conductivity make it ideal for advanced 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 anti-corrosion properties 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 lightweight cements that reduce hydrostatic pressure 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 particles in a container.
Industries focusing on lightweight transportation, aerospace, energy-saving construction, and marine syntactic foams benefit the most.
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