GLASS FIBER PACKING
Glass Fiber Packing is a high-temperature braided sealing material manufactured from texturized glass fibers and engineered for thermal insulation and static sealing applications. It is designed to withstand elevated temperatures while maintaining dimensional stability and excellent resistance to thermal shock.
Glass Fiber Packing is commonly used in industrial systems where resistance to heat, hot gases, steam, and moderate chemicals is required. Depending on the construction, it may be reinforced with graphite, PTFE, metallic wire, or special lubricants to improve sealing efficiency and mechanical strength.
This packing material is widely selected for industrial furnaces, boilers, ovens, expansion joints, and static sealing environments.
TECHNICAL DATA
Material: Texturized Glass Fiber / E-glass fiber
Construction: Braided Packing
Color: White / Off White / Black(with graphite)
Density: Approx. 1.20–1.80 g/cm³
Continuous Temperature: Up to 550°C
Maximum Temperature: Up to 650°C
Rotating: 20 bar
Reciprocating: 40 bar
Static: 80 bar
Shaft Speed: 20m/s in rotary
Pressure Capability: Suitable for Static Service
pH Range: 4–9
Thermal Conductivity: Low
Application Type: Static Sealing / Thermal Insulation
Actual performance varies depending on construction and operating conditions.
KEY FEATURES OF GLASS FIBER PACKING
Excellent Heat Resistance
Designed for continuous operation in elevated temperature environments.
Superior Thermal Insulation
Reduces heat transfer and improves system efficiency.
Excellent Dimensional Stability
Maintains structure under thermal cycling conditions.
Good Chemical Resistance
Performs well against water, steam, and selected industrial chemicals.
Non-Combustible Material
Glass fibers provide stable operation in high-temperature systems.
Excellent Mechanical Strength
Maintains packing integrity during long-term service.
Easy Installation
Flexible braided construction allows convenient installation.
Long Service Life
Suitable for continuous industrial operation.
DIFFERENT TYPES OF GLASS FIBER PACKING
Pure Glass Fiber Packing
Manufactured from braided texturized glass fibers.
Features: High temperature resistance. Excellent insulation properties
Applications: Furnace doors, thermal sealing
Graphite Impregnated Glass Fiber Packing
Treated with graphite for improved lubrication.
Features: Reduced friction. Better sealing performance
Applications: Industrial valves. thermal equipment
PTFE Impregnated Glass Fiber Packing
Impregnated with PTFE for enhanced chemical resistance.
Features: Improved flexibility. Lower friction coefficient
Applications: Chemical processing systems
Wire Reinforced Glass Fiber Packing
Braided with metallic wire reinforcement.
Features: Higher mechanical strength. Improved pressure resistance
Applications: Boilers, Industrial furnaces
Ceramic Coated Glass Fiber Packing
Special surface treatment for improved thermal capability.
Features: Enhanced insulation. Better surface durability
Applications: Extreme temperature environments
APPLICATIONS OF GLASS FIBER PACKING
Industrial Furnaces
Boilers and Steam Systems
Heat Exchangers
Oven and Kiln Doors
Expansion Joints
Thermal Processing Equipment
Hot Gas Duct Systems
Static Valve Sealing
Insulation Equipment
Power Generation Facilities
CONCLUSION
Glass Fiber Packing is an effective sealing and insulation solution for industries operating under elevated temperatures and static sealing conditions. With excellent thermal resistance, structural stability, and multiple construction options, it provides dependable long-term performance for industrial heat management and sealing systems.
