Hollow Glass Sphere Hollow Glass Beads

Overview of Hollow Glass Sphere Hollow Glass Beads      

Hollow Glass Sphere and Hollow Glass Beads both refer to hollow glass products that contain air or other gases inside. They usually have tiny sizes, with diameters ranging from a few micrometers to a few millimeters. These microspheres or microspheres are made of glass and have high chemical and thermal stability, as well as lower density and sound insulation performance.
The main difference between Hollow Glass Sphere and Hollow Glass Beads lies in their shape and purpose. Microspheres usually present perfect spherical shapes and are mainly used in high-end coatings, composite materials, reflective materials, and other fields to improve product performance. Microbeads, on the other hand, may exhibit irregular shapes and are more commonly used as filling materials, grinding media, sound insulation materials, etc., to improve the physical properties of the materials.

Features of Hollow Glass Sphere Hollow Glass Beads      

Low density: Due to its hollow interior, hollow glass microspheres have an extremely low density, far lower than solid glass beads.

High stability: Made of glass, it has excellent chemical and thermal stability and can maintain performance in various harsh environments.

Good insulation: Due to its internal structure and the characteristics of the glass itself, hollow glass microspheres are excellent insulation materials.

High refractive index: Due to the difference in refractive index between air and glass, hollow glass microspheres have a high refractive index and are commonly used in reflective materials.

Low water absorption: It is not easy to absorb water and can maintain stable performance in humid environments.

Good dispersibility: Easy to uniformly disperse in various media, convenient for processing and application.

Parameter table of Hollow Glass Sphere Hollow Glass Beads

Hollow Glass Spheres Properties
Other Names	Hollow Glass Beads
CAS No.	N/A
Compound Formula	N/A
Molecular Weight	N/A
Appearance	White Powder
Melting Point	N/A
Boiling Point	N/A
Density	0.12-0.70 g/cm3
Solubility in H2O	N/A
Exact Mass	N/A
Hollow Glass Spheres Health & Safety Information
Signal Word	N/A
Hazard Statements	N/A
Hazard Codes	N/A
Risk Codes	N/A
Safety Statements	N/A
Transport Information	N/A

Application of Hollow Glass Sphere Hollow Glass Beads          

Coatings and paints: Used to improve the flowability and anti settling properties of coatings, as well as enhance their weather resistance and durability.

Application of Hollow Glass Sphere Hollow Glass Beads

Composite materials: as reinforcing materials, improve the strength, rigidity, and thermal insulation performance of composite materials.

Reflective material: Utilize its high refractive index to produce reflective products such as traffic signs and safety clothing.

Aerospace: Due to its low density and good thermal insulation performance, it is used in lightweight composite materials in the aerospace field.

Application of Hollow Glass Sphere Hollow Glass Beads

Sound insulation material: Hollow glass microspheres can effectively reduce the transmission of sound and are used to make sound insulation materials.

Medical field: In some medical applications, hollow glass microspheres are used as drug carriers or diagnostic tools.

Application of Hollow Glass Sphere Hollow Glass Beads

Production Method of Hollow Glass Sphere Hollow Glass Beads

 1. Sol-Gel Method

Mix silica gel with a binder like resin. Shape the mixture into small droplets. Heat them to remove the binder, leaving hollow silica shells.

2. Spray Drying

Dissolve glass-forming materials (like silica, soda) in water. Spray the solution into hot air. Water evaporates, forming hollow beads. Bake them to harden the structure.

3. Chemical Vapor Deposition (CVD)

Heat silicon tetrachloride (SiCl₄) and oxygen in a chamber. They react to form silica gas. The gas deposits on tiny particles, creating hollow spheres.

4. Melting Process

Melt glass in a furnace. Add blowing agents like carbonates. The agents release gas during melting, forming bubbles. Cool the glass quickly to trap the bubbles as hollow beads.

5. Hydrothermal Synthesis

Mix silica powder with water and a surfactant. Heat the mixture under high pressure. The silica dissolves and reforms into hollow spheres.

Company Profile

RBOSCHCO is a trusted global chemical material supplier & manufacturer with over 12-year-experience in providing super high-quality chemicals and nanomaterials, including boride powder, nitride powder, graphite powder, sulfide powder, 3D printing powder, etc.

The company has a professional technical department and Quality Supervision Department, a well-equipped laboratory, and equipped with advanced testing equipment and after-sales customer service center.

If you are looking for high-quality Hollow Glass Sphere Hollow Glass Beads , please feel free to contact us or click on the needed products to send an inquiry. 

Storage Condition of Hollow Glass Sphere Hollow Glass Beads

Sealed Containers

Store in airtight plastic bags or sealed boxes. This stops moisture and dust from getting inside.

Dry Environment

Keep in a dry place with low humidity. Use desiccants (like silica gel) inside containers to absorb extra water.

Avoid High Temperatures

Store at room temperature (15–25°C). Heat can damage the beads or make them stick together.

Gentle Handling

Move containers carefully. Dropping or shaking them can break the hollow beads.

Separate from Sharp Objects

Don’t store with items that could puncture or scratch the beads, like metal tools.

Label Clearly

Mark containers with the product name and storage date. This helps track usage and prevents mix-ups.

Payment Term

L/C, T/T, Western Union, Paypal, Credit Card etc.

 

Shipment Term

By sea, by air, by express, as customers request.

5 FAQs of Hollow Glass Sphere Hollow Glass Beads

Q1

What is the main difference between Hollow Glass Sphere and Hollow Glass Beads?

Answer : Hollow Glass Sphere mainly presents a perfect spherical shape, while Hollow Glass Beads may exhibit irregular shapes. This shape difference leads to different application fields between the two. Sphere is more commonly used in high-end coatings, reflective materials, and other fields, while Beads are more commonly used in filling materials, grinding media, and other areas.

Q2

What are the preparation methods for Hollow Glass Sphere and Hollow Glass Beads?

Answer : The preparation methods of Hollow Glass Sphere and Hollow Glass Beads include melting method, sol gel method, lotion method, etc. Among them, the melting method is one of the most commonly used methods, which involves melting glass raw materials at high temperatures and then forming hollow structures through specific process conditions.

Q3

What are the advantages of using Hollow Glass Sphere and Hollow Glass Beads in coatings?

Answer : The application of Hollow Glass Sphere and Hollow Glass Beads in coatings has many advantages. They can improve the fluidity and anti settling properties of coatings, increase the thickness and glossiness of coatings, and also enhance the weather resistance and durability of coatings. In addition, they can also serve as reflective agents to enhance the reflective effect of coatings.

Q4

How environmentally friendly are Hollow Glass Sphere and Hollow Glass Beads?

Answer : Hollow Glass Sphere and Hollow Glass Beads are both made of glass, non-toxic and harmless, and meet environmental requirements. During production and application, no harmful substances or environmental pollution will be generated. At the same time, they can also be used as environmentally friendly materials to produce sound insulation materials, lightweight concrete and other products, which helps promote green buildings and sustainable development.

Q5

How to evaluate the quality of Hollow Glass Sphere and Hollow Glass Beads?

Answer : Evaluating the quality of Hollow Glass Sphere and Hollow Glass Beads usually requires consideration of the following aspects: particle size distribution, shape regularity, wall thickness uniformity, chemical composition stability, and physical properties. Its quality can be evaluated through methods such as microscopic observation, chemical analysis, and physical performance testing. High quality Hollow Glass Sphere and Hollow Glass Beads should have a uniform particle size distribution, regular shape, stable chemical composition, and excellent physical properties.