CERAMIC MICROSPHERE (FILLIT)

Ceramic Microspheres are unique, fine particle size high-strength ceramic microspheres. Petra microspheres are engineered to help you reduce costs, increase solids, enhance properties, and improve processability.

Microspheres sometimes called microparticles are made of small spherical particles with diameter 1 ?m to 1000 m (1 mm). It can be manufactured from different synthetic and natural materials. To achieve a ceramic melting, the temperature should be above relevant melting points. A subsequent rapid cooling process is the only reason for the hollow drops.

Hollow ceramic microspheres, with our brand name PETRA FILLIT, are lightweight, high-performance spherical particles with a hollow core. These advanced materials are typically made from ceramics such as alumina, silica, or combinations of other oxides, offering excellent strength, thermal stability, and low density. Known for their exceptional insulating properties, high compressive strength, and chemical resistance, FILLIT ceramic microspheres are widely used in applications ranging from lightweight composites and thermal insulation to coatings and construction materials. Their unique structure and material composition make them an ideal choice for industries seeking to enhance performance while reducing material weight.

Properties of Hollow Glass Sphere:

Appearance: white powder, good fluidity

Sinkers: <5%

True Density: 0.70 ~ 0.90 g/cm'

Bulk Density: 0.30 ~ 0.50 g/cm*

Particle Size: 5 ~ 500 um

Thermal Conductivity: 0.038 ~ 0.085 W/m.K

Compressive Strength: 500-4800 psi

pH: 8 ~ 9.5

Moisture Content: <0.5%

Ceramic Microsphere for paints

There are a great many uses for FILLIT- Ceramic Microsphere in the paint and industrial coating industry, due to the additional qualities they provide. For example, ceramic microspheres are often used in coatings to control infrared radiation, giving those coatings an advantage over ones that merely attempt to limit thermal conductivity. Addition of ceramic microsphere water-based intumescent coatings on structural steel helps make the structure of the coating char layers more compact and effectively reduces heat transfer from source to the metal surface showing better thermal shielding performance better anti-oxidation property at high temperature.

Ceramic Microspheres are also added to formulations for marking of roads and airfields. The use such thermoplastic composition for road markings can increase frost resistance, crack resistance, and salt resistance of coatings, as well as add reflective properties.

Unique Characteristics of FILLIT
Ultra-Lightweight Composition

Designed for applications demanding reduced mass, FILLIT microspheres significantly lower the overall density of materials, making them an excellent choice for weight-sensitive industries.

Superior Thermal Barrier

With excellent heat resistance, FILLIT enhances insulation performance in coatings, construction elements, and industrial-grade composites, ensuring energy efficiency and temperature stability.

Exceptional Strength-to-Mass Ratio

Despite their lightweight nature, these microspheres exhibit high compressive strength, reinforcing mechanical integrity in rigorous operational conditions.

Precision Spherical Geometry

The highly uniform shape of FILLIT particles improves flow properties and dispersion in mediums like polymers, resins, and coatings, resulting in enhanced consistency and processing efficiency.

Minimized Dimensional Instabilities

When incorporated into composites, FILLIT significantly reduces shrinkage and warpage, ensuring superior dimensional accuracy and structural reliability in finished products.

Optimized Processing & Workability

The inherently smooth surface of these microspheres facilitates effortless blending into various formulations, improving handling and manufacturability.

High Chemical Stability

Engineered to resist degradation from moisture, acids, and corrosive substances, FILLIT ensures long-term durability, even in harsh chemical environments.

Sustainability-Focused Innovation

By enabling material reduction and lowering energy consumption, FILLIT aligns with eco-conscious manufacturing goals, making it a sustainable choice for industrial applications.

Enhanced Sound Absorption

Thanks to their unique structural properties, FILLIT microspheres contribute to noise reduction, making them valuable in automotive, construction, and acoustic insulation solutions.

Versatile Integration Across Sectors

Adaptable to diverse formulations, FILLIT seamlessly integrates into paints, adhesives, sealants, and lightweight composites, supporting a broad spectrum of manufacturing processes such as molding, spraying, casting, and powder coating.

FILLIT hollow ceramic microspheres offer a unique blend of strength, durability, and lightweight performance, making them a game-changer for industries seeking advanced material solutions.

Grades We Offer

Hollow ceramic sphere is a kind of micron sized hollow sphere with smooth surface. It is a hollow transparent sphere, as seen under the microscope. FILLIT 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.

Cementing Grades – Oil and Gas
TYPE TRUE DENSITY (g/cm3) BULK DENSITY (mpa/psi) TECHNICAL DATA SHEET
FILLIT 0.85H 0.80-0.85 0.35-0.48 -
FILLIT 0.85M 0.80-0.85 0.35-0.48 -
FILLIT 0.85L 0.80-0.85 0.35-0.48 -
FILLIT 0.80H 0.70-0.80 0.32-0.42 -
FILLIT 0.80M 0.70-0.80 0.32-0.42 -
FILLIT 0.80L 0.70-0.80 0.32-0.42 -
PAINTS AND COATINGS
TYPE TRUE DENSITY (g/cm3) BULK DENSITY (mpa/psi) TECHNICAL DATA SHEET
FILLIT 75 0.70-0.90 0.35-0.48 -
FILLIT 100 0.70-0.90 0.35-0.48 -
FILLIT 125 0.70-0.90 0.35-0.48 -
FILLIT 150 0.70-0.90 0.35-0.48 -
FILLIT 212 0.70-0.90 0.35-0.48 -
FILLIT 300 0.70-0.90 0.35-0.48 -
FILLIT 500 0.70-0.90 0.35-0.48 -
FILLIT 500 EXP 0.75-0.85 0.35-0.50 -
FRICTION AND ABRASION
TYPE TRUE DENSITY (g/cm3) BULK DENSITY (mpa/psi) TECHNICAL DATA SHEET
FILLIT 500|99 0.70-0.9 0.35-0.48 -
REAFRACTORY AND COATING
TYPE TRUE DENSITY (g/cm3) BULK DENSITY (mpa/psi) TECHNICAL DATA SHEET
FILLIT 100~500 0.80 - 1.0 0.35-0.50 -
FILLIT 500 | 99 0.80 - 1.0 0.35-0.50 -
Applications of FILLIT

FILLIT hollow ceramic 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. FILLIT is a go-to solution for industries seeking innovative, lightweight, and cost-effective materials.

APPLICATIONS OF FILLIT IN OIL-FIELD CEMENTING:

Hollow ceramic microspheres (FILLIT) are lightweight, spherical particles with excellent mechanical, thermal, and chemical properties. In the oil and gas industry, they have several important applications due to their strength, low density, thermal stability, and corrosion resistance.

Here are detailed applications of FILLIT in the oil and gas industry:

1. Drilling Fluids and Cements
  • Lightweight Cementing: FILLIT reduces the density of well cements, making them ideal for use in fragile formations where conventional cement might cause fractures.
  • Enhanced Flow Properties: The spherical shape of FILLITs improves the flow and placement of cement slurries.
  • Thermal Insulation: FILLIT provides better thermal resistance to cement, helping maintain cement stability in high-temperature wells.
  • Lost Circulation Prevention: By reducing cement weight, they help minimize lost circulation in weak or depleted zones.
2. Wellbore Strengthening
  • Fracture Sealing: The microspheres help form a resilient and lightweight plug that seals fractures in the wellbore walls.
  • Stress Distribution: FILLIT enhances the mechanical integrity of wellbore cement by improving stress distribution across the material.
3. Enhanced Thermal Insulation
  • Pipeline Insulation They are used in coatings for pipelines to reduce heat loss and improve energy efficiency in deep-sea operations.
  • Subsea Insulation They protect equipment from harsh subsea conditions by minimizing thermal transfer between production fluids and surrounding environments.
4. Weight-Reducing Additives in Composites
  • Drill Pipe Coatings Microspheres are incorporated into composite materials to reduce the overall weight of drill pipes without compromising mechanical properties.
  • Buoyant Materials They are used in buoyancy modules and drill riser buoyancy applications.
5. Proppants in Hydraulic Fracturing
  • Lightweight Proppants Microspheres can be used as lightweight ceramic proppants for hydraulic fracturing, which keeps fractures open and improves hydrocarbon flow.
  • Corrosion Resistance Their chemical stability ensures longevity and performance in chemically aggressive downhole environments.
6. Corrosion-Resistant Coatings
  • Pipeline and Tank Coatings FILLIT is added to anti-corrosion coatings for pipelines and storage tanks, providing enhanced resistance to chemical attack and erosion.
  • Wear Protection They improve abrasion resistance in mechanical components exposed to high friction.
7. Energy-Efficient Insulation in Processing Plants
  • High-Temperature Applications They are used as insulating materials in furnaces, kilns, and heat exchangers to reduce energy consumption during oil and gas processing.
8. Environmental and Safety Enhancements
  • Soundproofing Due to their acoustic insulation properties, FILLIT helps reduce noise pollution in processing facilities.
  • Flame Retardancy Their fire-resistant properties improve workplace safety in high-risk operational areas.
Applications of FILLIT

FILLIT hollow ceramic 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. FILLIT is a go-to solution for industries seeking innovative, lightweight, and cost-effective materials.

APPLICATIONS OF FILLIT IN ANTI-CORROSIVE PAINTS AND COATINGS:

Hollow ceramic microspheres (FILLIT) play a crucial role in enhancing the performance of anti-corrosive paints and coatings due to their unique combination of properties, including low density, chemical inertness, high strength, and excellent thermal stability.

1. Corrosion Resistance Enhancement
  • Barrier Effect: The spherical shape and ceramic structure of FILLIT creates a dense, impermeable layer that prevents moisture, oxygen, and corrosive chemicals from reaching the substrate.
  • Chemical Inertness: Their resistance to chemical attack improves the longevity of coatings in harsh industrial environments.
2. Improved Mechanical Properties
  • Abrasion Resistance: FILLIT impart enhanced wear resistance to coatings, protecting surfaces from mechanical damage and erosion.
  • Impact Resistance: The robust ceramic structure distributes mechanical stresses, reducing the likelihood of cracking or delamination.
3. Weight Reduction for Thick Coatings
  • Lightweight Formulations: Incorporating FILLIT allows manufacturers to produce thick, protective coatings without adding excessive weight, which is crucial for applications in marine and aerospace industries.
4. Enhanced Thermal and Fire Protection
  • Heat Insulation: Microspheres reduce heat transfer, making coatings suitable for high-temperature environments such as pipelines and chemical reactors.
  • Fire Resistance: Their inherent ceramic nature enhances flame retardancy in coatings for industrial and marine structures.
5. Surface Smoothness and Uniformity
  • Spherical Geometry: The microspheres improve the leveling and flow characteristics of paints, leading to smoother, uniform coatings.
  • Reduced Surface Defects: They help minimize pinholes and micro-cracks that can compromise corrosion protection.
6. Energy Efficiency in Production and Application
  • Lower Drying and Curing Times: The low thermal conductivity of hollow ceramic microspheres can reduce heat requirements during the curing process, saving energy.
  • Easier Application: Their lightweight and free-flowing nature improve coating application efficiency.
7. Cost Efficiency
  • Pigment Volume Replacement: FILLIT partially replaces expensive pigments and fillers, reducing the overall material costs of high-performance coatings.
  • Extended Lifespan: The enhanced durability and corrosion resistance provided by FILLIT reduces the need for frequent recoating.
8. Anti-Fouling Properties for Marine Applications
  • Extended Lifespan: The ceramic nature of FILLIT makes surfaces harder, reducing the adhesion of marine organisms.
  • Enhanced Performance: FILLIT-based coatings resist biofouling and chemical degradation, extending maintenance intervals for ships and offshore structures.
9. Environmental and Safety Benefits
  • VOC Reduction: Ceramic microspheres allow for the formulation of high-solids, low-VOC coatings, contributing to environmental compliance.
  • Fire and Explosion Safety: They enhance fire protection, making workplaces safer.
SUGGESTED GRADES
APPLICATIONS OF FILLIT IN REFRACTORY AND ABRASION INDUSTRY:

FILLIT is a cutting-edge solution that enhances the performance, durability, and efficiency of refractory and abrasion-resistant materials. Its unique properties make it indispensable in extreme environments where high temperatures, mechanical stress, and wear resistance are critical.

1. High-Performance Refractory Applications

FILLIT plays a crucial role in developing advanced refractory materials, offering benefits such as heat insulation, reduced density, and thermal shock resistance.

  • Lightweight Refractory Castables By incorporating FILLIT, refractory castables achieve significant weight reduction without compromising strength, making them easier to handle and install while improving energy efficiency in furnaces, kilns, and incinerators.
  • Thermal Insulation Linings Its excellent low thermal conductivity helps in manufacturing insulating bricks, monolithic refractories, and coatings that effectively retain heat while minimizing energy losses in high-temperature environments.
  • High-Temperature Coatings & Protective Layers Used in the formulation of high-performance coatings, FILLIT enhances thermal resistance and protects industrial equipment, furnaces, and pipelines from extreme heat and oxidation.
  • Foundry Applications FILLIT helps in creating lightweight refractory molds, reducing heat absorption and improving thermal efficiency in metal casting and investment casting processes.
  • Fireproof Panels & Insulation Boards When added to fireproof construction materials, FILLIT enhances fire resistance, making it ideal for industrial and structural applications requiring high thermal stability.
2. Abrasion & Wear-Resistant Applications

FILLIT significantly improves the durability and lifespan of abrasion-resistant materials used in industries subjected to high mechanical stress and erosion.

  • Wear-Resistant Coatings & Linings FILLIT strengthens wear-resistant coatings applied to pipes, chutes, hoppers, and industrial equipment, reducing surface erosion caused by abrasive materials.
  • Cement & Concrete Reinforcement When integrated into high-performance cement and concrete formulations, FILLIT enhances crack resistance, minimizes shrinkage, and improves overall durability in abrasive environments like mining and construction.
  • Surface Hardening Compounds In the production of toughened ceramics and industrial flooring, FILLIT contributes to superior wear resistance and impact absorption, increasing longevity in high-traffic areas.
  • Anti-Corrosion Protective Layers FILLIT helps formulate coatings that resist chemical attacks and mechanical wear, making them suitable for industrial machinery, pipelines, and chemical processing equipment.
  • Shotcrete & Sprayable Refractory Materials FILLIT improves workability and flow in sprayed refractory materials, ensuring even application and enhanced durability in furnaces, boilers, and incinerators.

By integrating FILLIT into refractory and abrasion-resistant materials, industries benefit from improved thermal efficiency, reduced material weight, and enhanced durability, making it a game-changing solution for demanding applications.

SUGGESTED GRADES
APPLICATIONS OF FILLIT IN SEALANTS AND ADHESIVES:

Weight Reduction: Reduces overall product weight while maintaining strength, ideal for automotive and aerospace applications.

Improved Mechanical Properties: Enhances impact resistance, tensile strength, and abrasion resistance in adhesives.

Thermal Insulation: Provides heat resistance in high-temperature sealants used for industrial and electronic applications.

Gap Filling and Volume Extension: Acts as lightweight fillers, reducing shrinkage and improving gap-filling capacity.

Enhanced Durability: Improves resistance to moisture, chemicals, and environmental degradation.

Cost Efficiency: Reduces material costs by partially replacing expensive resins or fillers.

Improved Application Properties: Ensures smoother application and better spreadability in adhesive formulations.

CERAMIC MICROSPHERE (FILLIT) FOR OIL-FIELD

The Unique Features Of FILLIT

Low density reduces slumps and sags

High Crush strength

Ease of moulding

Reduce overall cost

Lower the possibility of fracturing, sticking pipes and lost circulation

Reduce overall volume and offers ease to work with in any areas

Excellent Thermal insulation

Improved flowability along with producing Lower viscosities

Reduced shrinkage resulting in tightly placed films on wall

Classified as a “Green” product with a low carbon footprint

Ensuring excellent performance by being stable beyond 1400°C

Enhancing overall life span of the products

Ceramic Microsphere for Construction

For decades, FILLIT has been a useful additive to concrete, providing additional strength, and or sound insulation, whilst also lowering density. “In theory, Ceramic Microsphere can replace some of the normal-weight sand used in concrete. Ceramic Microsphere have a density that is less than water. This means that 1 pound of Ceramic Microsphere takes up the same absolute volume as about 3.8 lbs. of sand.”

FILLIT in concrete are used as a means of lowering noise pollution, by lowering the weight of the concrete, while maintaining a compressive strength of 30 MPa at a density of 1.6 T / m3, improving their tightness and reducing their sound transmission. FILLIT is also used to improve the thermal and sound insulation qualities of plasters, mortars and plasters, used for walls, floors and ceilings. An addition of 40% volume FILLIT reduces the noise transmission coefficient by almost half the value.

Reduces Heat Loss

Promote fire protection

Eliminates cold bridging and help to desist internal condensation

Easy to apply and bind due to the rheology of its spherical shape.

Light weight and low density minimize the slumping and sagging

Promotes fire protection

Ceramic Microsphere for Refractory

FILLIT- Ceramic Microsphere owing to their physical and chemical properties are used as feedstock in the manufacture of a new generation of innovative refractories/ insulating refractories. Their use imparts excellent flow properties to the product, thus enhancing the placability of monolithic linings.

This phenomenon has been ascribed to the lubricating (ball-bearing) effect of the spherical particles. Insulating refractories based on fly ash, exhibit remarkable strength to density ratios, excellent thermal shock resistance and an improved ratio of thermal conductivity to bulk density. Most importantly, they are far more cost effective than competitive products.

The properties of a specific Ceramic refractory depend on its formulation. In general, the higher the proportion of Cenosphere/ceramic microsphere, the better the insulation efficiency and the lower the density.

Ceramic Microsphere in Friction Industry

The performance of friction materials depends on the coaction between all raw materials. Our Ceramic Microspheres commonly termed as Extendo Spheres contribute to the mechanical and tribological performance of brakes by lowering the density.

Controlling vibrations by being an inert filler material

Enhancing comfort by reducing noise (NVH)

Reduced shrinkage resulting in less wear and tear

Ensuring excellent performance by being stable beyond 1400°C.

Improving durability and decreasing fine dust emissions by decreasing wear

Enhancing overall life span of the products

High electric resistance and High build/Low slump

Enhancing safety by stabilizing friction owing to higher compressive strength

Ceramic Microsphere for Plastics

Ceramic Microspheres are used as reinforcing filler in High density polyethylene (HDPE) to develop light- weight composites. Ceramic Microspheres are primarily used to reduce the weight of plastics, rubbers, resins, cements, etc...

Ceramic Microspheres were first used in the United States as an extender for plastic compounds, as they are compatible with plastisols thermoplastics, Latex, Polyesters, Epoxies, Phenolic resins and urethanes.

The compatibility of Ceramic Microspheres with special cements and adhesives coating and composites have been well identified. Cenospheres are widely used in a variety of products, including sports equipment, insulation, automobile bodies, marine craft bodies, paints, and fire and heat protection devices. Typically applied in gypsum board jointing compounds, veneering plasters, stuccos, sealants, coating and cast resins. Providing the advantages of reduces weight, increased filler loadings, better flow characteristics, less shrinkage and warping and reduces water absorption.

COMPREHENSIVE OVERVIEW

FILLIT (Ceramic Microsphere) is a game-changer in the world of advanced material solutions, proudly manufactured by PETRA INDUSTRIES PVT. LTD., a trusted leader in the industry. As top manufacturers and suppliers of premium ceramic microspheres, we deliver unmatched quality and innovation tailored to meet diverse industrial needs. FILLIT stands out for its exceptional lightweight properties, thermal insulation, and strength, making it an ideal choice for automotive, aerospace, construction, and coatings applications. Our commitment to precision and excellence ensures that wholesalers and distributors receive consistent, top-tier products that drive their success. Whether you’re searching for reliable ceramic microsphere suppliers or seeking bulk ceramic materials, FILLIT is the name you can trust. Partner with us, the foremost manufacturers of ceramic microspheres, to experience cutting-edge technology, unmatched durability, and competitive pricing that set us apart in the global market. Choose FILLIT for superior performance and long-term reliability.

FILLIT hollow ceramic microspheres are cutting-edge, lightweight additives designed to enhance material performance across various industries. Engineered from high-strength ceramics like alumina and silica, FILLIT offers exceptional thermal insulation, high compressive strength, and superior chemical resistance. Its ultra-lightweight, spherical structure reduces the density of materials while improving durability, making it ideal for applications requiring weight reduction without compromising performance. These microspheres enhance mechanical properties, minimize shrinkage, and improve processing efficiency, making them a valuable component in advanced composites, coatings, adhesives, and refractory solutions. Additionally, their high thermal stability and corrosion resistance ensure long-lasting performance in extreme environments, from industrial manufacturing to high-temperature operations.

With its unique combination of strength, durability, and sustainability, FILLIT is widely used in industries such as oil and gas, construction, automotive, aerospace, and coatings. It improves energy efficiency, reduces material costs, and enhances product longevity, making it a game-changer for businesses looking to optimize performance while maintaining cost-effectiveness. FILLIT’s ability to enhance thermal insulation, improve abrasion resistance, and offer superior workability makes it an essential material for manufacturers aiming to achieve high-performance, eco-friendly, and lightweight solutions. Whether for thermal barrier coatings, fireproof panels, industrial adhesives, or anti-corrosive paints, FILLIT’s versatility and advanced engineering set a new benchmark in modern material innovation.

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