Introduction to Microlite (Hollow Glass Microspheres)

MicroLite GM- Glass Bubbles are engineered hollow glass microsphere having a high strength-to-density ratio, so they are both lightweight and strong enough to survive processing. Made of soda-lime borosilicate glass, these additives are chemically inert and water resistant having true density of 0.20-0.60 g/cm 3; particle size is 2-130microns.

The high-performance GM-hollow glass microspheres feature a smooth, nonporous surface, and their spherical shape offers a variety of advantages over irregularly shaped additives or fillers for many demanding applications. These low-density particles are used in a wide range of industries to reduce part weight, lower costs and enhance properties and overall performance.

Microlite is our premium hollow glass microspheres, designed for high-performance industrial applications. These lightweight, spherical particles have an average size ranging from 40 to 150 microns and are known for their low density and excellent thermal insulation properties. Microlite finds extensive use across diverse industries such as automotive, aerospace, construction, paints & coatings, and oil & gas, enhancing product performance while reducing overall weight and material costs.

Properties of Hollow Glass Sphere:

Appearance: white powder, good fluidity

Under the Microscope: transparent, hollow, spherical

True Density: 0.12 ~ 1.60 g/cm'

Bulk Density: 0.10 ~ 0.62 g/cm*

Bulk Density: 0.10 ~ 0.62 g/cm*

Bulk Density: 0.10 ~ 0.62 g/cm*

Bulk Density: 0.10 ~ 0.62 g/cm*

pH: 8 ~ 9.5

Hollow glass microspheres can readily be blended into compounds and it makes them adaptable to a variety of production processes including spraying, casting and moulding, powder coating etc.

Unique Characteristics of Microlite

Lightweight Design: Microlite microspheres have an extremely low density, significantly reducing the weight of products they are integrated into.

Thermal Insulation: Exceptional thermal resistance makes them ideal for applications requiring insulation, such as coatings, construction materials, and industrial composites.

High Strength-to-Weight Ratio: Despite being lightweight, Microlite microspheres offer impressive compressive strength, enhancing durability in demanding applications.

Uniform Spherical Shape: Their consistent shape ensures improved flow and dispersion in matrices like resins, polymers, and paints.

Reduced Shrinkage and Warpage: When added to composites, they minimize shrinkage, resulting in dimensionally stable products.

Enhanced Workability: Their smooth surface improves material processing, offering ease of handling during manufacturing.

Chemical Inertness: Microlite microspheres are resistant to water, acids, and other chemicals, ensuring long-term stability in harsh environments.

Eco-Friendly Solution: Their ability to reduce material usage and energy consumption aligns with sustainable manufacturing practices.

Improved Acoustic Properties: Ideal for applications requiring noise dampening, such as automotive and construction industries.

Versatility Across Industries: Compatible with various formulations like paints, adhesives, sealants, and lightweight composites, ensuring adaptability in multiple sectors.

Hollow glass microspheres can readily be blended into compounds and it makes them adaptable to a variety of production processes including spraying, casting and moulding, powder coating etc.

Grades We Offer

Hollow glass sphere is a kind of micron sized hollow sphere with smooth surface. It is a hollow transparent sphere, as seen under the microscope. Microlite applications are of great significance for the performance promotion and optimization of various materials, and for the light-weight of materials as well as the strategy of energy saving and emission reduction.

Low Density Grades
TYPE TRUE DENSITY (g/cm3) BULK DENSITY (mpa/psi) COMPRESSIVE STRENGTH (mpa/psi) D50 (microns) D90 (microns) TECHNICAL DATA SHEET
GM 16 0.13-0.17 0.08-0.09 4/500 85 120 -
GM 20 0.18-0.22 0.10-0.12 4/500 65 110 -
GM 25 0.23-0.27 0.13-0.15 5/750 65 100 -
GM 32 0.30-0.34 0.17-0.19 14/2000 45 80 -
GM 35 0.33-0.37 0.18-0.21 21/3000 40 70 -
GM 38 0.36-0.40 0.19-0.22 38/5500 40 65 -
GM 40 0.38-0.42 0.19-0.23 28/4000 40 70 -
GM 42 0.40-0.44 0.21-0.24 55/8000 40 60 -
GM 46 0.44-0.48 0.23-0.26 41/6000 40 70 -
GM 50 0.48-0.52 0.25-0.27 55/8000 40 60 -
GM 60 0.58-0.62 0.29-0.34 83/12000 40 65 -
GM 60 S 0.58-0.63 0.30-0.34 124/18000 35 55 -
Low Density High Compressive Strength Grades
TYPE TRUE DENSITY (g/cm3) BULK DENSITY (mpa/psi) COMPRESSIVE STRENGTH (mpa/psi) D50 (microns) D90 (microns) TECHNICAL DATA SHEET
GM 20 S 0.18-0.22 0.10-0.12 7/1000 60 90 -
GM 28 S 0.27-0.30 0.15-0.17 28/4000 45 65 -
GM 38 S 0.36-0.40 0.19-0.22 38/5500 30 50 -
GM 42 S 0.40-0.44 0.21-0.24 55/8000 25 40 -
GM 46 S 0.44-0.50 0.22-0.25 110/16000 20 30 -
GM 60 SS 0.58-0.62 0.29-0.33 193/28000 16 25 -
GM 65 S 0.63-0.67 0.30-0.33 207/30000 13 20 -
GM 70 S 0.75-0.80 0.33-0.35 207/30000 10 15 -
Ultra High Compressive Strength Grades
TYPE TRUE DENSITY (g/cm3) BULK DENSITY (mpa/psi) COMPRESSIVE STRENGTH (mpa/psi) D50 (microns) D90 (microns) TECHNICAL DATA SHEET
GM_M20 1.00-1.10 0.38-0.40 124/18000 7 12 -
GM_M30 0.80-0.90 0.34-0.37 83/12000 12 20 -
Application of Glass Microsphere

Due to its excellent advantages of light weight, bulk density, lower thermal conductivity, higher compressive strength, improved dispersion and liquidity, it finds application in

Microlite hollow glass microspheres are versatile materials with applications across various industries. In rubbers and plastics, they reduce weight and enhance dimensional stability. For construction materials, they provide thermal insulation and improve workability in lightweight concrete and panels. The mining and oil & gas industry utilizes them in drilling fluids and cementing systems to lower density and enhance performance. In biomedical fields, they serve as carriers for drug delivery and diagnostics. Paints and coatings benefit from their ability to improve thermal insulation, reduce shrinkage, and enhance surface finish. Microlite is a go-to solution for industries seeking innovative, lightweight, and cost-effective materials.

APPLICATIONS OF MICROLITE IN OIL-FIELD CEMENTING:

Advantages of cementing slurry prepared with hollow glass sphere. The low-density and high-strength mud system prepared by adding hollow glass sphere is one of the main ways to solve the problem of low-pressure, leak-prone cementing cement slurry leakage and low return.

Advantages of cementing slurry prepared with hollow glass spheres.

  • Excellent fluidity, easy to mix and pump:
  • Inorganic components, high temperature resistance and high-pressure resistance make the mud performance stable:
  • The thickening time can be adjusted according to the construction needs, which is convenient for operation;
  • Effectively control the water loss rate and prevent pollution;
  • The slurry density is low, the compressive strength is high, and the 24h compressive strength can reach more than 15MPa;|
  • Improve cementing quality and prolong oil well life.

Injection molded components and extruded profiles; Sheet molding compounds (SMC) and bulk molding compounds (BMC); Automotive, aerospace and marine transportation; FRP; Artificial Stone; Furniture and molded decor; Electronics and appliances; Packaging films; Polymer/wood composites and siding

Hollow glass microspheres have multiple uses but are prominently used in the rubber industry for making products such as silicone rubber sealants. The major advantage of these hollow glass microspheres is they result in weight reduction. PETRA MicroLite glass microsphere provides adequate insulation, durability, and stability which is helpful in transportation as well as various other applications.

The hollow glass microspheres are also used in the plastic industry. A lot of studies after a thorough research have concluded that when plastic is used with hollow microsphere also known as hollow glass beads can make their outputs lighter, more durable, and stronger along with reducing the requirement of increased costings and materials used during the process.

Hollow microspheres have a very significant impact on the nature of products in terms of insulation, resistance, structure, durability, thermal conductivity and so on which changes the applications of the products drastically.

APPLICATIONS OF MICROLITE IN ANTI-CORROSIVE PAINTS AND COATINGS:

Hollow glass sphere can be widely used in outdoor coatings with characteristics of weather ability, sun-proof and heat insulation, automotive coatings, vessel antifouling coatings, anti-corrosion coatings, etc., which play the roles as below.

  • Reduce VOC: In the case of high filler amount, the viscosity of coating did not increase greatly, which can reduce the usage amount of each organic component in coating, to reduce the discharge of harmful substances in the process of using coating, effectively reduce VOC index.
  • High fluidity: ball structure is like ball bearings, which has lubrication effect in paint, thus reducing the viscosity of paint, increase fluidity.
  • Low oxygen/water penetration: Since the size of hollow spheres are widely distributed, it can improve stacking performance, reduce void space, in this way it slows down the penetration rate, block the circuit channels, isolate H2O and Oz to fail to produce electrolytes, which delay rusting attack time and get good stable long-term protection. The particle size of hollow glass sphere is micron sized, which prevent the collapse of the coating after drying and improve the dry film thickness, in this way, it delays the arrival of H2O and Oa to the surface of the steel plate.
  • Reduce shrinkage and cracking: spheroid, anisotropic consistency, which reduce the warping and shrinkage of coating film caused by inconsistent stress.
  • Barrier effect and inhibition effect: The dispersion and barrier effect of zinc powder can be improved by adding hollow glass sphere inside. Trapping chloride ions, which inhibit and prevent corrosive particles from penetrating down to the surface of the base materials.

(Suggested grades for Anti-Corrosive Paints: GM 16, GM 20, GM 32, GM 38)

Caulks and sealants; Cultured marble; Preformed concrete; Putties; Spackling; Spray-up/lay-up Mastics; Paints and coatings; Potting compounds Hollow glass sphere has wide uses in the thermal insulation of construction materials due to their high strength, low density, and chemical resistance. The energy-saving feature of a hollow microsphere is very integral to the construction industry as energy is being used significantly in residential sectors. PETRA MicroLite Glass Microspheres are excellent for thermal insulation applications. Studies have also proved that the use of glass microsphere results in increased thermal and mechanical characteristics of foams used for insulating.

APPLICATIONS OF MICROLITE IN SEALANTS AND ADHESIVES:

Hollow glass sphere is lightweight, hollow, and high-strength glass spheres. With the highest strength/density ratio, it is suitable for silicone, epoxy, acrylic, polyurethane, synthetic rubber adhesives etc., which offers adhesives a series of excellent performance.
  • Microsphere Effect: minimum specific surface area, low oil absorption value, which reduce the usage amount of resin and make the adhesives have low viscosity, better fluidity, and processing performance. Isotropic consistency makes the adhesives with no warpage and shrinkage, which will not be affected by inconsistent stress after processing.
  • Glass Material: it will not react with the base material or other substances as a filler, which is suitable for a variety of systems.
  • Hollow sphere: low density can help to reduce the density and volume cost of adhesives; low thermal conductivity can make the adhesive with sound insulation, heat insulation, low thermal conductivity effect.
  • Micron particle size: it can improve the rheological properties of adhesives while improving the thixotropy; The small microspheres fill the gap of the large microspheres, thus increasing the solid content and reducing VOC. Easy to disperse, no agglomeration.
  • Other features, it makes the adhesives have grinding effect, which improve the wear resistance of resin and improve the dielectric properties of the material.
  • White color, better for color compatibility.

(Suggested grades of Microlite for Sealants and Adhesives: GM 25, GM 32, GM 28 S, GM 38 S, GM 42 S)

Emulsion explosives; Lightweight cement slurries; Low-density drilling fluids (hollow glass spheres drilling fluids) Buoyancy modules and risers Deepsea pipe and flowline insulation; Syntactic foam

In the face of rising expenses and reduced prices of commodities, the mining industry is facing hurdles in a bid to reduce costs and work on improving productivity at the same time. Hollow microspheres are used in the making of emulsion explosives, which is the result of a lot of research performed to understand how to enhance its performance as well as the ability and one of the most important features to adjust the density. The biggest advantage of these hollow glass microspheres is that they have proved to significantly reduce cost.

While in the oil and gas industry, the hollow glass beads are used by adding them to the drilling fluids to reduce their density. These hollow glass spheres drilling fluids can be utilised in drilling in various conditions which may be either balanced or underbalanced. Hollow glass spheres drilling fluids are used in oil extractions and drilling not only results in the conservation of energy but also reduces costs and can be re-used, thereby becoming user-friendly and more sustainable to an extent.

(Suggested grade of Microlite for Oil-Field Cementing : GM 40, GM 46, GM 60)

APPLICATIONS OF MICROLITE IN SOLID BUOYANCY MATERIALS:

Equipment in the marine need to provide power to ensure that they work statically or dynamically in the water, and power is very valuable under water. Unpowered buoyancy technology is a relatively effective way to save power and ensure longer-term effective work. a means. The key to the non-dynamic buoyancy technology lies in the solid buoyancy material, which requires low density and stable performance. The density of the buoyant material remains unchanged for every 100 meters of depth in the water. Sustained effectiveness. Hollow glass spheres have the advantages of low density, high strength, good corrosion resistance and high filling rate, which are very suitable for the preparation of solid buoyancy materials.

Main advantages of hollow glass spheres as a lightweight filler for solid buoyancy materials

  • Low density, hollow glass spheres are one of the lightest fillers;
  • High strength, glass ball wall, can be used in deep sea to withstand deep water static pressure; |
  • Good stability, hollow glass spheres are inorganic powders, with stable chemical properties, acid and alkali resistance, high and low temperature resistance, and other characteristics:
  • The spherical shape reduces the internal stress of the product, so that the product is not easily deformed and has good dimensional stability:
  • Smooth surface, smaller specific surface area, low oil absorption rate, higher filling amount in resin.

(Suggested grades of Microlite for Solid Buoyancy Materials: GM 16, GM 20, GM 25, GM 20 S, GM 28 S)

Glass microsphere has now been included in biomedical due to its newly found purpose i.e targeted drug delivery. These hollow glass microspheres can help to control the dosage of medicines and also regulate its interval thus allowing better treatment of patients. This feature also allows for consistent drug release to maintain a certain level of plasma. The shape of the glass microsphere allows increased retention in the tract and thus increases therapeutic effects and longevity. It also allows targeted delivery in the stomach, controlled release to eliminate irritation caused by gastric secretions. Due to various advantages, these hollow microspheres are now being researched to develop more usage in healthcare.

APPLICATIONS OF MICROLITE IN RUBBERS AND ELASTOMERS:

Microlite is a micron sized hollow closed sphere with low density, high strength, low thermal conductivity characteristics. It is used in elastomers like rubber with heat insulation, weight reduction and increase resilience function etc.

  • Lightweight shoes: Hollow glass spheres can greatly reduce the weight of shoes, which make the shoes more comfortable.
  • Industrial rubber: As a filler in cable, the skin rubber packing layer of communication optical cable, in all kinds of rubber sealing ring, Microlite makes these products own the features of weight reduction, flame retardance, tear resistance etc.
  • Elastomer material for household goods: As a filler in latex pillows, mattresses, sofas and other household items, hollow glass spheres can increase the texture of materials and improve resilience

(Suggested grades of Microlite for Rubbers and Elastomers: GM 42 S)

In terms of coating, glass microspheres are considered a perfect fit as they have magnanimous mechanical as well as heat-insulation characteristics. The hollow glass sphere is used as raw material extensively in the coating industry as light reflectors due to easy availability, have a very low density, and are spherical in shape. Thus hollow glass microsphere is a boon in terms of raw materials for coating purposes that result in enhanced performance overall.

The chemically stable soda-lime-borosilicate glass composition of hollow glass sphere provides excellent water resistance to create more stable emulsion.

APPLICATIONS OF MICROLITE IN TOOLING BOARDS:

Hollow glass sphere are used in tooling boards to improve the processing properties and provide excellent quality assurance for the manufacture of furniture parts, car models, shoe molds, tire molds, architectural models, decorations and sculptures. Adding hollow glass spheres can adjust the density of the product and make the tooling board more stable.

  • Compared with ordinary mineral powder fillers, hollow glass sphere has better fluidity and dispersibility. which can ensure the dimensional stability of the products, reduce shrinkage and warpage, and enhance the impact strength of the products.

(Suggested grades of Microlite for Sealants and Adhesives: GM 16, GM 20, GM 20 S)

Hollow Spheres are only a fraction of the density of commonly used resins. It only takes a small addition by weight of Hollow Glass Microspheres to displace heavier materials. Hollow glass sphere simultaneously add volume and reduce density. If you are looking for buoyancy, no filler performs as well as Potters Hollow Spheres. Additionally, they can save material costs; on a volume basis, microspheres are a fraction of the cost of resins.

MicroLite- Glass Bubbles are engineered hollow glass microsphere (HGMS), a kind of ultra-light inorganic non-metallic powder with hollow “ball-bearing” shapes, serves as alternatives to conventional fillers and additives for many demanding applications. These Glass bubble sphere have a high strength-to-density ratio, so they are both lightweight and strong enough to survive processing. Microlite Glass spheres are made of soda-lime borosilicate glass, these additives are chemically inert and water resistant having true density of 0.20-0.60 g/cm3; particle size is 2-130?m.

Benefits of Microlite in Everyday Life

Hollow glass microspheres are innovative materials that enhance the performance and usability of everyday products. Their unique properties bring tangible benefits in numerous applications, improving product quality and user experience. Here are three major advantages:

1. Hollow Nature for Lightweight and Thermal Insulation The hollow structure of these microspheres makes them exceptionally lightweight, reducing the weight of products such as automotive parts, household appliances, and lightweight construction materials. This not only improves portability but also contributes to energy efficiency, such as in fuel savings for vehicles and thermal insulation in home building materials, reducing heating and cooling costs.

2. Higher Filler Loading for Enhanced Durability Hollow glass microspheres enable higher filler loading in materials like plastics, paints, and coatings without compromising performance. This leads to improved durability, wear resistance, and reduced material consumption. For instance, in paints, they enhance coverage and thermal insulation, while in plastics, they increase stiffness and impact resistance, extending the lifespan of everyday products.

3. Lower Viscosity, Shrinkage, and Warpage for Superior Quality By reducing viscosity, hollow glass microspheres improve the flow properties of materials during manufacturing, making processes like injection molding and coating applications more efficient. Additionally, they minimize shrinkage and warpage in finished products, ensuring dimensional stability and better surface finish. This is especially beneficial in producing precision parts, such as electronics casings or automotive components, where accuracy and aesthetic quality are critical.

These benefits make hollow glass microspheres a game-changer in everyday life, delivering products that are lighter, stronger, and more energy-efficient while maintaining exceptional quality and functionality.

The unique spherical shape of hollow glass microspheres (HGMS) offers a number of important benefits, including

  • higher filler loading
  • lower viscosity/improved flow
  • reduced shrinkage and war page

It also helps the hollow microspheres blend readily into compounds and makes them adaptable to a variety of production processes including spraying, casting and moulding. Due to its excellent advantages of light weight, bulk density, lower thermal conductivity, higher compressive strength, improved dispersion and liquidity, Hollow Glass Sphere can be used as Filler in Painting, Rubber, Plastics, FRP, Artificial Stone, Putty, Exploitation of Oil and Gas and Other Materials. We are a trusted hollow glass microsphere supplier in India offering finest quality low-density glass microsphere, glass beads, glass microsphere grade for paints and coatings. In addition, we are a leading glass microsphere supplier for thermal insulation coating, epoxy resin, coatings, offering glass microsphere grade for putty and hollow microsphere for insulation at the best price.

COMPREHENSIVE OVERVIEW

MICROLITE hollow glass microspheres are a cutting-edge solution in advanced material technology, tailored for a wide range of industrial applications. As trusted hollow glass microsphere suppliers, bulk glass microsphere dealers, and lightweight filler wholesalers, we deliver premium products known for their thermal insulation, high-performance industrial fillers, and exceptional lightweight properties. MICROLITE is the preferred choice for industries such as automotive, construction, paints and coatings, aerospace, and oil & gas, where performance, efficiency, and innovation are crucial.

Our advanced manufacturing ensures consistency in quality, offering benefits like higher filler loading, low viscosity, and minimal shrinkage or warpage. These qualities make MICROLITE the ideal automotive glass filler, enhancing lightweight designs and fuel efficiency. In paints and coatings, MICROLITE provides thermal insulation, improved surface finish, and cost-efficient coverage. For the aerospace industry, its aerospace-grade glass fillers reduce material weight while maintaining strength and durability.

If you are searching for industrial-grade hollow microspheres or premium hollow glass microspheres, MICROLITE is the ultimate solution. We are committed to providing advanced material solutions that meet the highest industry standards, ensuring your applications achieve unparalleled quality and performance. Choose MICROLITE to source innovative, high-quality materials that redefine what’s possible in thermal insulation materials and bulk glass fillers.

MICROLITE (Glass Microsphere) is a revolutionary solution in advanced material technology, designed to cater to a wide array of industrial applications. As trusted suppliers, dealers, and wholesalers of premium glass microspheres, we take pride in delivering top-quality products that offer exceptional lightweight properties, thermal insulation, and unparalleled strength. MICROLITE is the preferred choice for industries such as automotive, construction, coatings, and aerospace, where performance and reliability are paramount. Our dedication to quality ensures that wholesalers and dealers receive consistent, high-performance products that meet the demands of their clients. Whether you’re sourcing bulk glass microspheres or seeking a reliable supplier, MICROLITE stands out as the ultimate solution for durability, versatility, and cutting-edge performance. Choose MICROLITE for advanced material solutions that excel in every application.

Why Choose Microlite?
  • Superior Quality: Our state-of-the-art manufacturing process ensures premium-grade hollow glass microspheres that meet the highest industry standards. Unmatched Versatility: Suitable for a wide range of industrial applications, offering unmatched adaptability to specific needs.
  • Cost-Effectiveness: By reducing material usage and enhancing efficiency, Microlite contributes to significant cost savings.
  • Customized Solutions: We offer tailored solutions to meet the unique requirements of our customers, ensuring optimal results in every application.

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