Buy low price Cenospheres with floating rate more than 98% Improve thermal and acoustic insulation in buildings and refractories application.
Cenospheres are lightweight, inert, hollow spheres made primarily of silica (SiO₂) and alumina (Al₂O₃), typically produced as a byproduct of coal combustion in thermal power plants. When coal is burned at high temperatures, the non-combustible materials melt and form small, gas-filled spheres that are then carried out with the flue gas. These are later collected from fly ash.
Key Properties:
Low density (0.4–0.8 g/cm³)
High compressive strength
Thermal insulation
Chemical resistance
Float on water (due to hollow structure)
White or grayish-white in color
Common Applications:
Construction:
Lightweight concrete and plaster
Insulating materials
Oil & Gas:
Drilling muds
Cementing slurries
Automotive & Aerospace:
Lightweight composites
Fillers in polymers and rubbers
Paints & Coatings:
To reduce weight and improve thermal properties
Plastics & Resins:
Used as fillers to enhance performance
Benefits:
Reduce material weight without compromising strength
Improve thermal and acoustic insulation
Enhance workability and durability of construction materials

































