Pure expansion flexible graphite sheet product overview

Pure expansion flexible graphite sheet is a high-performance sealing material, mainly used in packing rings, winding gaskets, general packing, and various types of gaskets made from metal stamped composite plates or laminated (bonded) composite plates. It is specifically designed to provide reliable sealing performance in harsh industrial environments.

Technical Parameters

Item	Specification 1 (Thickness 0.2 - 0.5mm)	Specification 2 (Thickness 0.5 - 1.0mm)	Specification 3 (Thickness 1.0 - 2.0mm)
Thickness/mm	0.2 - 0.5	0.5 - 1.0	1.0 - 2.0
Density/g/cm³	1.0 - 1.5	1.0 - 1.5	1.0 - 1.3
Width/mm	500 - 1100	500 - 1100	≤ 1500
Carbon Content/%	≥ 99	≥ 99	95 - 99
Sulfur Content/PPM	≤ 1200	≤ 1200	≤ 1200
Chlorine Content/PPM	≤ 30	≤ 50	≤ 50
Tensile Strength/MPa	≥ 4.5	≥ 4.5	≥ 4.0
Compression Rate/%	35 - 55	35 - 55	35 - 55
Rebound Rate/%	≥ 9	≥ 9	≥ 9
Thermal Weight Loss/%	≤ 0.5 (at 450℃)	≤ 1.0 (at 450℃)	≤ 1.0 (at 450℃)
Stress Relaxation Rate/%	≤ 10	≤ 10	≤ 10

Note: Customization is available for the product.

Core advantage

(1)Excellent heat resistance: Pure Expanded Flexible Graphite Sheet performs excellently in high and low temperature environments, maintaining stable performance under extreme cold and hot conditions.

(2)Excellent chemical corrosion resistance: can withstand strong acid, strong alkali, organic solvents and industrial gases and other corrosive media, not easy to degrade performance.

(3)Excellent self-lubrication: reduce friction and wear in dynamic sealing scenarios, prolong equipment service life.

(4)High rebound rate: strong elastic recovery ability is maintained after compression, which can dynamically compensate for the gap caused by vibration or deformation to ensure no leakage of sealing.

(5) Economical and practical: long service life, reduce the frequency of replacement and labor cost; wide applicability, simplify inventory management.

Main applications

(1) Sealing material: Pure Expanded Flexible Graphite Sheet is used for sealing gaskets in high temperature and high pressure environments.

(2)Thermal conductive materials: electronic equipment heat sink, battery thermal management.

(3)Fireproof materials: fireproof sealing strip, fireproof filler.

(4)Industrial packing: packing rings for pumps and valves.

(5)Aerospace: high temperature sealing box insulation components. 4. vendibility ： As a trusted sealing solution, it meets the demanding requirements of industrial sealing applications with both performance and economy, enabling stable operation in high stress environments.

Core features

Integrated thermal stability, corrosion resistance and resilience make it an ideal solution for sealing systems requiring long-term reliability and low maintenance requirements.