Detail Information

Grade:	Industrial Grade	Type:	Flexible Sheet
Industry Application:	Oil & Gas, Chemical, Power	C Content (%):	99.9%
Surface Treatment:	Smooth/Textured Finish	Material:	Flexible Graphite
Customization:	Tailored Dimensions/Shapes	Ce Marking:	CE - Certified
Rohs Compliance:	Lead - Free/RoHS - Compliant	Flexural Strength:	40 MPa
Surfacefinish:	Smooth Or Textured	Sealing Performance:	Leak - Tight At High Pressures
Chemical Composition:	Stainless Steel	Hardness:	Shore Hardness
Fatigue Resistance:	Repeated Stress Resistance	Standard Or Nonstandard:	Standard
Standard:	ASTM, AISI, JIS, EN, GB	Thickness:	1mm To 10mm
Pressureresistance:	Up To 40 MPa

Product Description

Specialized Graphite Sealing Gasket of Custom Thickness

For High-Vacuum Deep-Cooling Systems in Petrochemical Refineries & Heavy Industrial Plants

Products Description

Cling-Seal custom-thickness graphite gaskets are engineered specifically for high-vacuum, deep-cooling, and high-pressure operating environments in petrochemical refineries, chemical plants, and heavy industrial facilities. Built from high-purity expanded graphite with precision lamination and customizable forming, this series delivers reliable, long-term sealing performance under extreme temperature fluctuations, corrosive media, and ultra-low outgassing requirements.

Manufacturing Process

Produced from high-purity natural graphite flakes, our material undergoes chemical intercalation followed by rapid thermal expansion at 800–1000°C, creating worm-like expanded graphite with a bulk density of approximately 3 kg/m³. Without binders or chemical additives, the exfoliated graphite is compacted into rolls or sheets to achieve stable performance and carbon purity above 99%. This structure ensures excellent flexibility, thermal stability, and vacuum compatibility for critical industrial sealing systems.

Product Range

We provide a full suite of flexible graphite products for custom gasket fabrication, including:

Expanded graphite sheets
Graphite foil
Graphite tape
Graphite strips
Graphite paper

Standard Specifications

Flexible formats to support diverse processing, die-cutting, and assembly requirements.

Parameter	Coil Type	Sheet Type
Width	1000mm / 1500mm	1000mm / 1500mm
Length	30m / 50m / 80m	—
Thickness	0.15–1.0mm	1.0–5.0mm
Density	0.8–1.25 g/cm³	0.8–1.25 g/cm³

Note: Custom dimensions, thicknesses, and composite structures are available for OEM and project-based requirements.

Core Performance Indicators

Stable baseline properties for high-vacuum, deep-cooling, and petrochemical applications.

Item	Standard Value
Carbon Concentration	99%
Sulfur Concentration	＜1000 ppm
Chlorine Concentration	＜45 ppm
Tensile Strength	4.5 MPa
Compressibility	＞40%
Recovery	＞10%
Operating Temperature	-200°C ~ 600°C
Working Pressure	Up to 20 MPa
Thickness Tolerance	-0.04mm ~ +0.04mm
Dimension Tolerance	Custom per drawing
Density Tolerance	-0.06 ~ +0.06 g/cm³

Grade Classification (JB/T 53392-1999)

Three quality grades to match different industrial standards, equipment criticality, and project specifications.

Mechanical Data	Qualified Product	Top Grade	Superior Grade
Density Tolerance ＜0.4 g/cm³ ≥0.4 g/cm³	±0.10 ±0.07	±0.05	±0.05
Tensile Strength (MPa)	≥3.2	≥4.5	≥5.0
Compression Ratio (%)	35–55	35–55	35–55
Rebound Rate (%)	≥9	≥11	≥12
Stress Relaxation Rate (%)	≤10	≤10	≤10
Ash Content (%)	≤6.0	≤3.0	≤1.0
Heat Loss 450°C / 600°C	≤1.0 / ≤20	≤0.5 / ≤15	≤0.5 / ≤15
Sulfur Content (ppm)	≤1500	≤1000	≤600
Chloride Content (ppm)	≤100	≤50	≤20

Key Performance Benefits

Extreme Thermal & Vacuum Stability

Stable performance from deep-cooling cryogenic temperatures up to high-temperature service; low outgassing ideal for high-vacuum systems.
Superior Chemical Resistance

Resists acids, alkalis, hydrocarbons, and corrosive media commonly found in petrochemical and refining environments.
Strong Mechanical Reliability

High compression recovery and low stress relaxation ensure leak-free performance under pressure cycling and long-term service.
Custom Composite Design

Can be laminated with stainless steel or copper alloys for reinforced structural gaskets suitable for heavy-duty flanges and valves.

Typical Applications

Dynamic shaft seals and packing rings for pumps, valves, and compressors
Custom die-cut flange gaskets for pipelines, reactors, and pressure vessels
High-vacuum chamber seals and thermal barriers in deep-cooling systems
Heavy industrial seals for refineries, processing plants, and energy equipment

Cling-Seal Supply & Service Terms

Target Customers: Mainly overseas corporate buyers, factory procurement, engineering firms, and OEM industrial clients.
Shipping Origin: All orders shipped exclusively from China.
Individual Buyers: Accepted only if the buyer agrees to cover full international shipping costs for single-piece dropshipping. Orders cannot be processed without confirmed freight arrangements.

Specialized Graphite Sealing Gasket of Custom Thickness for High-Vacuum Deep-Cooling Systems in Petrochemical Refineries & Heavy Industrial Plants 0

Specialized Graphite Sealing Gasket of Custom Thickness for High-Vacuum Deep-Cooling Systems in Petrochemical Refineries & Heavy Industrial Plants 1

Specialized Graphite Sealing Gasket of Custom Thickness for High-Vacuum Deep-Cooling Systems in Petrochemical Refineries & Heavy Industrial Plants 2

Tag:

Place of Origin:	CHINA
Brand Name:	CLINGSEAL
Certification:	ISO,SGS
Model Number:	CSG80

Minimum Order Quantity:	500kg
Price:	2.2USD PER KG
Packaging Details:	pallet/wooden case
Delivery Time:	20 days
Payment Terms:	T/T, Western Union, MoneyGram
Supply Ability:	500Tons per month

Specialized Graphite Sealing Gasket of Custom Thickness for High-Vacuum Deep-Cooling Systems in Petrochemical Refineries & Heavy Industrial Plants

Specialized Graphite Sealing Gasket of Custom Thickness

For High-Vacuum Deep-Cooling Systems in Petrochemical Refineries & Heavy Industrial Plants

Products Description

Manufacturing Process

Product Range

Standard Specifications

Core Performance Indicators

Grade Classification (JB/T 53392-1999)

Key Performance Benefits

Typical Applications

Cling-Seal Supply & Service Terms

Gasket Graphite Sheet,

Flexible Graphite Sheet,

Reinforced Graphite Sheet

High Pressure Dynamic Sealing Graphite Gasket Sheet Smooth Finished Industrial Grade

1mm Thick Flexible Graphite Sheet Self Lubricating For Custom Shaped Gaskets

Industrial Sealing Graphite Gasket Sheet 99.8% Purity Chemical Resistant

1500°F Rated Flexible Graphite Sheet UV and Humidity Resistant

Singapore High Precision Graphite Gasket Sheet 1000mm / 1500mm Roll Width

3mm Thick Sealing Gasket Graphite Sheet Chemical Resistant

50MPa Compressive Strength Graphite Gasket Sheet Radiation Resistant

UK Emergency Replacement Graphite Gasket Material For Pump Valve Sealing