Lightweight Filling Solutions: Reduce Weight, Not Performance.
Engineered with High-Strength Hollow Glass Microspheres (HGM) to achieve up to 30% weight reduction in polymers, composites, and coatings.
Density Optimization: Lower density for superior buoyancy and lightness.
High Crush Strength: Reliable structural integrity under extreme pressure.
Cost Efficiency: Reduce resin consumption and logistics costs.




Certified Quality & Industrial Standards
Our Hollow Glass Microspheres are manufactured under strict ISO quality management systems and have passed rigorous third-party testing (SGS/CNAS) to ensure consistent performance in high-end industrial applications.
Why Choose HGM for Industrial Lightweighting?
Zhongke Hairui Solution Highlights
Building C7, Incubator No. 1, Xiamen Science City, Tong’an District, Xiamen City, Fujian Province, China.
Product application categories
Hollow Glass Microspheres (HGM) deliver advanced material solutions across multiple industries, including aerospace, automotive, marine, construction, energy, and specialty chemicals. Their unique combination of ultra-low density, high compressive strength, thermal insulation, and low dielectric constant enables engineers to reduce structural weight, enhance mechanical performance, and improve energy efficiency. Tailored particle sizes ensure precise engineering integration for high-performance applications.
| Parameter | Typical Range | Unit |
|---|---|---|
| Density | 0.1 – 0.6 | g/cm³ |
| Compressive Strength | 500 – 18,000 | psi |
| Thermal Conductivity | 0.04 – 0.10 | W·m⁻¹·K⁻¹ |
| Void Fraction | ≥95 | % |
| Particle Diameter | 10 – 200 | μm |

Automotive Vehicle Weight Reduction
Utilizing HGM in underbody coatings and composite parts to decrease vehicle weight, enhance fuel economy, and extend EV battery range without compromising safety.

Aerospace & Aircraft Structures
Integrated into advanced composites and syntactic foams to provide extreme lightweighting, high strength-to-weight ratios, and superior thermal stability for flight components.

Marine Buoyancy & Structures
HGM serves as the core filler for deep-sea syntactic foams and ship hull repair, offering high buoyancy, pressure resistance, and excellent water resistance.

Construction & Building Materials
Enhancing lightweight mortars, joint fillers, and artificial stone. It improves spreadability, reduces shrinkage, and provides fundamental thermal and sound insulation.

Industrial & Functional Coatings
Used in thermal insulation paint and protective coatings. The spherical shape lowers viscosity, improves flow, and acts as a barrier against heat and corrosion.

Adhesives & Sealants Optimization
Reduces the density of epoxy, polyurethane, and silicone sealants. HGM controls rheology (sag resistance) and lowers the overall weight of the bonded assembly.

Plastic & Composite Modification
A vital functional filler for SMC/BMC and injection-molded plastics. It ensures dimensional stability, reduces warping, and accelerates production cooling cycles.

Low-Density Drilling Fluids
Key additive for lightweight drilling muds and cementing slurries. HGM reduces the fluid density to protect fragile underground formations under high pressure.

Electronic Potting & Encapsulation
Protects sensitive components in potting compounds. Offers a low dielectric constant, lightweight protection, and thermal insulation to improve electronic reliability.
| Model | Density (g/cm³) | Compressive Strength (MPa) | Thermal Conductivity (W·m⁻¹·K⁻¹) | Water Absorption (%) |
|---|---|---|---|---|
| Ulite-1510 | 0.09 – 0.11 | 0.7 – 1.0 | 0.040 – 0.052 | <1 |
| Ulite-2010 | 0.11 – 0.15 | 1.0 – 1.4 | 0.043 – 0.058 | <1 |
| Ulite-2510 | 0.15 – 0.17 | 1.4 – 1.7 | 0.052 – 0.068 | <1 |
| Ulite-3010 | 0.17 – 0.23 | 1.4 – 2.7 | 0.058 – 0.068 | <1 |
| Ulite-3810 | 0.23 ± 0.02 | 2.7 | 0.068 ± 0.03 | <1 |
- Contact us to learn more about your industry.
HGM material systems

HGM
Premium High-Purity Powder & Precision Weighing Set – Includes Digital Gram Scale, Airtight Bottle, and Bamboo Spoons

HGM
Premium High-Purity Powder & Precision Weighing Set – Includes Digital Gram Scale, Airtight Bottle, and Bamboo Spoons

HGM
Premium High-Purity Powder & Precision Weighing Set – Includes Digital Gram Scale, Airtight Bottle, and Bamboo Spoons

HGM
Premium High-Purity Powder & Precision Weighing Set – Includes Digital Gram Scale, Airtight Bottle, and Bamboo Spoons

HGM
Premium High-Purity Powder & Precision Weighing Set – Includes Digital Gram Scale, Airtight Bottle, and Bamboo Spoons

HGM
Premium High-Purity Powder & Precision Weighing Set – Includes Digital Gram Scale, Airtight Bottle, and Bamboo Spoons

HGM
Premium High-Purity Powder & Precision Weighing Set – Includes Digital Gram Scale, Airtight Bottle, and Bamboo Spoons

HGM
Premium High-Purity Powder & Precision Weighing Set – Includes Digital Gram Scale, Airtight Bottle, and Bamboo Spoons
| Parameter | Typical Range | Unit |
|---|---|---|
| Density | 0.1 – 0.6 | g/cm³ |
| Compressive Strength | 500 – 18,000 | psi |
| Thermal Conductivity | 0.04 – 0.10 | W·m⁻¹·K⁻¹ |
| Void Fraction | ≥95 | % |
| Particle Diameter | 10 – 200 | μm |
- Please contact us to learn more about our materials.
Precision Solutions for Specialized Industries

Boil-Off Control
Significantly reduces heat leakage to keep gas in a liquid state for much longer, preventing costly fuel loss during storage.

Extreme Cold Guard
Acts as a specialized buffer that protects the tank’s outer shell from cracking under ultra-low temperatures as low as $-253\text{°C}$.

Vacuum Maintenance
Helps maintain a stable vacuum environment inside the tank jacket, ensuring that your insulation performance remains consistent over years.

Trailer Lightening
By reducing the dead weight of storage tanks, transport trailers can carry a larger volume of fuel, cutting down on total logistics trips.

Impact Buffer
Absorbs mechanical shocks and external vibrations, providing critical protection for high-pressure hydrogen cores and composite wraps.

Fire Safety
Adds an inorganic, heat-resistant barrier that protects the tank from external fire damage, effectively preventing potential pressure explosions.

Energy Saving
Provides superior thermal resistance to stop heat from escaping, ensuring stable fluid temperatures even during long-distance transport.

Anti-Corrosion
The inert glass surface acts as a permanent shield, protecting industrial pipes from harsh chemical erosion and salt spray damage.

Deep-Sea Strength
Specifically engineered to withstand massive hydrostatic pressure, preventing undersea "pipe-in-pipe" systems from collapsing or deforming.

Non-Sag Coating
Improves the texture of insulation paint, ensuring it stays thick and even on vertical or curved pipes without running or dripping.

Moisture Shield
Low water absorption ensures the insulation layer stays bone-dry, maintaining its full performance even in high-humidity or coastal environments.

Easy Maintenance
Lighter and more flexible coatings make it much easier for workers to inspect, remove, and repair sections of the pipeline system.

Foundation Relief
Significantly lightens the concrete and mortar, reducing the building's total structural load and saving on expensive foundation costs.

Thermal Comfort
Creates a high-efficiency thermal envelope that keeps interiors warm in winter and cool in summer, drastically cutting HVAC electricity bills.

Natural Firewall
Made of inorganic glass that will not burn, melt, or release toxic smoke, providing a safer environment during emergency fire events.

Sound Deadening
The hollow structure effectively damps urban noise and vibrations between floors, creating a much quieter and more private living space.

Crack-Free Walls
Stabilizes the formula of putty and plaster to prevent shrinking, ensuring your interior and exterior walls stay smooth and crack-free for years.

Smooth Aesthetics
Enhances the workability of decorative coatings, allowing contractors to create a flawless, premium finish that looks like natural stone.

Stable Cold Chain
Provides precise temperature control to ensure that sensitive vaccines, medicines, and fresh food stay within their safe range during transit.

Payload Boost
Replacing heavy foam with ultra-light HGM insulation means refrigerated trucks and containers can carry more product and less dead weight.

Condensation Control
Effectively prevents "sweating" and water droplets from forming on the outside of cold containers, protecting both the equipment and the cargo.

Eco-Friendly
100% chemically inert and non-toxic, making it perfectly safe for insulation layers that are in close proximity to food or medical supplies.

Space Saving
High R-value performance allows for much thinner insulation layers, freeing up valuable storage space inside containers and cold rooms.

Long-Term Reliability
Unlike traditional foams, HGM won't sink, degrade, or lose its shape over time, ensuring your insulation lasts as long as your equipment.
Start Your Customization
Tell us about your application scenario, and we will recommend the most suitable Lightweight Filling Solution for you within 24 hours.
Send your custom request
- All uploads are secure and confidential
Sample validation process
Free 25kg trial sample provided. Shipping costs are to be borne by the customer.
How We Deliver Your Lightweight Solutions
We ensure a controlled, 3-step process from your initial weight-reduction goals to the final delivery of high-performance fillers.
Requirement & Customization
We analyze your target density and resin system to recommend or customize the precise HGM grade for maximum weight reduction.
Precision Production
Strict real-time monitoring of particle size and crush strength ensures batch-to-batch consistency for your industrial production lines.
Testing & Fast Delivery
Every batch is lab-tested with a full COA report before being securely shipped to your facility via our reliable logistics network.
Ready to Lighten Your Products?
Get a Professional Weight Reduction Analysis & Free Samples.
Our engineers will help you select the ideal HGM grade to achieve the perfect balance of density, strength, and cost.
- Expert Technical Support: 1-on-1 consultation for formula
- Customized Solutions: Tailored density and crush strength for your
- Fast Sampling: Global shipping for testing and validation.
Request a Free Quote
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