Corrugated Flexible Graphite Tape

Corrugated Flexible Graphite Tape is made from high-purity expanded flake graphite as the substrate, compounded with temperature-resistant adhesive, and manufactured via big data-optimized corrugated forming and curing processes; and its core function is to provide a "zero leakage + long service life" sealing solution for extreme working conditions (high and low temperatures, strong corrosion, high pressure). It addresses the pain points of the carcinogenic risk of traditional asbestos gaskets and the insufficient temperature resistance of rubber gaskets (prone to aging at temperatures ＞200℃). Ranked among the TOP 5 fastest-growing products in the 2025 industrial sealing materials market (18.7% annual growth rate, with petrochemical/new energy applications accounting for 63%; Data Source: Global Sealing Materials Industry White Paper).

Ultra-Wide Temperature Range Resistance: After 1500-hour high-low temperature cycle tests (-200℃~600℃), the sealing performance attenuation is ≤3%. Compared with traditional rubber gaskets (maximum temperature resistance of 250℃), its applicable range is expanded by 140%, making it suitable for scenarios such as pipelines in extremely cold regions and high-temperature reactors. The failure rate of downstream customers under extreme working conditions is reduced by 82%.

High-Efficiency Sealing & Leakage Prevention: The unique corrugated structure (corrugation height: 0.5-2mm, customizable) increases the contact area of the sealing surface by 40%. After 800 high-pressure sealing tests (maximum pressure of 20MPa), the leakage rate is ≤1×10⁻⁶ Pa·m³/s, far exceeding the Chinese National Standard GB/T 4622.3-2021 for industrial sealing leakage (≤1×10⁻³ Pa·m³/s). The qualification rate of flange sealing for petrochemical pipelines reaches 99.2%.

Strong Corrosion Resistance & Chemical Stability: After 720-hour immersion tests (acid-base solutions with pH 1-14, organic solvents such as methanol/ethanol), the mass loss rate is ≤1.5%, with no swelling or cracking. Suitable for sealing strong corrosive media in the chemical industry, its service life is 3-5 times longer than that of asbestos gaskets (prone to corrosion and decomposition).

Easy Installation & Adaptability: Thickness ranges from 0.3-5mm (customizable), with flexibility enabling 180° folding without breaking. Through CNC cutting tests, the edge flatness after cutting into arbitrary sizes (maximum width of 1000mm) is ≤0.1mm. It is compatible with over 95% of industrial sealing surfaces (flanges, valves, joints), and the installation efficiency is 50% higher than that of traditional sealing gaskets.

 

Petrochemical Field (38% proportion, the largest application scenario): Corrugated Flexible Graphite Tape is used for the flange sealing of crude oil transmission pipelines and cracking reactors.According to test data from Sinopec, it can reduce the pipeline leakage failure rate from 5.2% to 0.3%, and cut the annual maintenance cost of a single unit by 400,000 RMB. Suitable for acid gas (H₂S, CO₂) treatment equipment, its corrosion resistance meets the requirements of long-term operation.

New Energy Field (25% proportion): Used as sealing for power battery pack covers (resistant to 150℃ high temperature) and hydrogen storage tank interface sealing (temperature range: -40℃~80℃). According to tests by CATL/BYD, the sealing reliability achieves no leakage after 1000 charge-discharge cycles, and its service life is 2 times longer than that of traditional rubber gaskets. Applied in photovoltaic silicon material production equipment (high-temperature chlorination furnaces), it resists 600℃ high temperature without impurity precipitation, ensuring silicon material purity.

Aerospace/Military Field (15% proportion): Compatible with satellite propulsion system pipelines (-200℃ low temperature) and military engine fuel interfaces (300℃ high temperature). According to tests by China Aerospace Science and Technology Corporation, the sealing performance remains stable under extreme temperature and pressure, meeting the long-service-life (over 10 years) operation requirements of aerospace vehicles.

General Industrial Field (22% proportion): Used for valve and pump sealing (e.g., centrifugal pumps in water treatment plants) and food-grade equipment (e.g., dairy sterilization tanks, complying with FDA 21 CFR Part 177.2600). It solves the problem of traditional gaskets being prone to wear and requiring frequent replacement, extending the average maintenance cycle of general equipment from 3 months to 18 months.

Hot Tags: Corrugated Flexible Graphite Tape, China Corrugated Flexible Graphite Tape manufacturers, Anti Oxidation Graphite Electrode Plate, Composite Graphite Bipolar Plate, Composite Graphite Reinforced Plate, Flexible Pure Graphite Packing, graphite crucible, graphite reinforced plate