HN20 Glass Microspheres - Polyurethane Molding Material
Product Specifications
| Attribute |
Value |
| Product Name |
HN20 glass microspheres |
| Application |
Construction |
| Diameter |
30-105 µm |
| Density |
0.15-1.0 g/cm³ |
| Compressive Strength |
500 psi |
| Chemical Composition |
SiO2, Na2O, CaO, MgO, Al2O3 |
| Color |
White or transparent |
| True Density |
0.18-0.22 |
| Bulk Density |
0.10-0.12 |
| Dielectric Constant |
1.2-2.2 (100MHZ) |
| Thermal Conductivity |
0.07 |
Technical Specifications
| Model |
True Density (g/cm³) |
Bulk Density (g/cm³) |
Compressive Strength (psi) |
Diameter (um) |
| HN20 |
0.18-0.22 |
0.10-0.12 |
500 |
25 (D10), 70 (D50), 105 (D90) |
Product Description
Hollow glass bubble polyurethane (HGBP) can be molded into various shapes and sizes using different molding processes. The hollow structure makes them desirable materials for numerous industrial applications.
Molding Methods
- Injection Molding: Fast and efficient process for mass production, involving melting polyurethane resin and injecting it into molds containing hollow glass bubbles.
- Compression Molding: Heat and pressure are applied to compress HGBP material into desired shapes, with polyurethane flowing around the hollow glass bubbles.
- Vacuum Bag Molding: Material is sealed in a vacuum bag to remove air pockets, then heated to cure and harden the polyurethane around the bubbles.
Product Advantages
- Reduces production costs
- Easy molding and polishing
- Minimizes shrinkage
- Lightweight filler solution
Why Choose Our HN20 Glass Microspheres?
- Over 20 years of specialized manufacturing experience
- Ranked among top global HGB manufacturers
- Guaranteed product quality with verifiable density, radius, and compressive strength
- Consistent product performance and reliability
Frequently Asked Questions
What packaging options are available for HN20 glass bubbles?
We offer carton and ton bag packaging options with dimensions varying by model and density. Custom packaging solutions are available upon request.
What are Hainuo Technology's credentials in HGB manufacturing?
Founded in 2011 with government-backed research, we've achieved significant technological breakthroughs and earned national recognition including "High-Tech Enterprise" status. Our products are used in major national projects by CNPC and CNOOC.
What safety precautions should be taken when handling HN20 glass bubbles?
Handle packages in well-ventilated areas with minimal vibration. For dust-sensitive individuals, we recommend safety glasses and gloves during unpacking.
What are the benefits of using hollow glass bubbles?
They enhance thermal insulation, improve fluidity and stiffness, increase strength endurance, and provide excellent chemical resistance while reducing weight.
What industries use hollow glass bubbles?
Widely used in aerospace, rubber, plastic, marine, and construction industries as lightweight fillers that improve performance and reduce costs.
What is the size and density range of Hainuo HGBs?
Density ranges from 0.11-0.606 g/cm³ with particle sizes between 10-115 microns.
Are hollow glass bubbles environmentally friendly?
Yes, made from natural sand, they are recyclable and cause no environmental harm. We maintain eco-friendly practices throughout production.
Can HN20 be used in 3D printing?
Yes, they reduce weight and improve strength in 3D printing materials while enhancing printability and reducing warping.
Are HN20 bubbles suitable for concrete applications?
Yes, they serve as lightweight aggregates that improve thermal insulation, fire resistance, workability, and durability in concrete.
What is Hainuo's production capacity?
Current annual capacity is 15,000 tonnes, expanding to 35,000 tonnes by 2026 with new production lines.
How should HN20 glass bubbles be stored?
Store in dry, cool areas away from direct sunlight. Keep packages tightly sealed to prevent particle emission.
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