INSULYTE® 7 is a premium Low Density Insulating Refractory Castable designed for thermal insulation in high-temperature industrial applications. It offers excellent heat insulation, low thermal conductivity, lightweight construction, and good mechanical strength, making it ideal as a backup insulation lining for furnaces, boilers, kilns, incinerators, and petrochemical equipment. It has a maximum service temperature of approximately 1100°C and is supplied as a hydraulic-bonded dry castable.
Type: Low Density Insulating Refractory Castable
Manufacturer: Calderys
Nature of Bond: Hydraulic Bonded Insulating Castable
Maximum Service Temperature: Approximately 1100°C
Bulk Density: Approximately 0.80–0.90 g/cm³
Appearance: Grey Dry Powder
Application: Boilers, Furnaces, Rotary Kilns, Incinerators, Petrochemical Plants, Steel Plants, Power Plants, Chimneys, Heat Treatment Furnaces & Industrial Thermal Insulation
INSULYTE® 7 is a premium-quality Low Density Insulating Refractory Castable manufactured by Calderys, a globally recognized leader in refractory solutions. It is specially engineered to provide outstanding thermal insulation, low thermal conductivity, lightweight construction, and reliable mechanical strength for high-temperature industrial equipment. Designed primarily as a backup insulation lining, INSULYTE® 7 significantly reduces heat loss, improves energy efficiency, lowers fuel consumption, and extends the service life of refractory lining systems.
Manufactured using lightweight refractory aggregates, hydraulic binders, insulating minerals, and advanced performance-enhancing additives, INSULYTE® 7 forms a strong, durable, and highly insulating refractory structure after proper mixing, casting, curing, and controlled heat-up. Its excellent insulating properties help maintain stable operating temperatures while protecting steel shells and structural components from excessive heat.
Widely used in steel plants, cement factories, petrochemical industries, power stations, foundries, and other high-temperature process industries, INSULYTE® 7 has become one of the preferred insulating castables for improving furnace efficiency and reducing operating costs.
INSULYTE® 7 is supplied as a ready-to-use dry insulating refractory castable that requires only the addition of clean water before installation.
Once mixed, it produces a smooth, lightweight, and highly workable castable suitable for casting, pouring, or vibration placement. After proper curing and controlled drying, it develops sufficient mechanical strength while maintaining excellent thermal insulation characteristics.
Unlike dense refractory castables that are designed to withstand direct flame and abrasion, INSULYTE® 7 is primarily used as a backup insulation layer behind hot-face refractories. This helps reduce heat transfer to the furnace shell, minimizes thermal losses, and increases the overall efficiency of the heating system.
INSULYTE® 7 is manufactured using carefully selected refractory raw materials, including:
This advanced formulation provides excellent insulation performance, low density, and reliable structural stability.
Its low thermal conductivity significantly reduces heat loss and improves furnace energy efficiency.
The low bulk density reduces the overall dead load on furnace structures and steel shells.
Suitable for continuous operation at temperatures up to approximately 1100°C.
By minimizing heat loss, INSULYTE® 7 reduces fuel consumption and operating costs.
Develops sufficient strength after curing to withstand normal industrial operating conditions.
Maintains its shape and insulating performance during prolonged exposure to elevated temperatures.
Can be installed by casting, pouring, or vibration methods, allowing fast and efficient construction.
Provides reliable insulation performance for extended operating periods with minimal maintenance.
INSULYTE® 7 is widely used in various high-temperature industrial sectors.
Compared with traditional insulation bricks and ordinary insulating materials, INSULYTE® 7 offers several important advantages:
These advantages help industries reduce operating expenses while improving production efficiency.
For optimum performance, proper installation procedures should be followed.
Proper installation is essential for achieving maximum insulation performance and long-term durability.
To maintain product quality:
Correct storage ensures consistent product performance.
Standard industrial safety procedures should always be followed.
INSULYTE® 7 is a world-class Low Density Insulating Refractory Castable manufactured by Calderys to deliver outstanding thermal insulation and energy-saving performance in high-temperature industrial environments. Its lightweight structure, low thermal conductivity, good mechanical strength, and service temperature of approximately 1100°C make it an ideal backup insulation material for furnaces, boilers, kilns, incinerators, petrochemical plants, steel mills, power stations, and foundries.
By significantly reducing heat loss, lowering fuel consumption, protecting furnace shells, and extending refractory lining life, INSULYTE® 7 improves operational efficiency while reducing maintenance and operating costs. Its reliable performance, easy installation, and long service life make it one of the most trusted insulating refractory castables for modern industrial thermal systems.
Supplied By: Max Build Care
Specialized in Refractory Materials, Industrial Minerals & High-Temperature Engineering Solutions
