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Asian Sealing Products provides the high-technology PTFE and CNAF gasket products designed to offer extended sealing performance in the chemical, oil and gas, and power industries. Our PTFE Gaskets (polytetrafluoroethylene gaskets) are chemically resistant in a way that cannot be matched, with excellent dielectric properties and can be relied upon in high-temperature sealing and cryogenic applications, and food-grade applications. Every enlarged PTFE or filled PTFE gasket is made with high dimensional accuracy to operate leak-free.
Our non-asbestos gaskets are compressed sheets reinforced with aramid fibre sheets, which provide thermal stability and uniform performance of gaskets even during service over steam and water. These non-asbestos gasket materials are safe substitutes for traditional asbestos and are strong at high pressures.
As an international manufacturer and exporter of gaskets, Asian Sealing provides the highest material traceability, quality assurance, and reliability in the delivery of any sealing needs to the industry.
Usage of industries
Oil and Gas
Chemical Industry
Power Generation
Mining
Marine
Asian Sealing Products provides the high-technology PTFE and CNAF gasket products designed to offer extended sealing performance in the chemical, oil and gas, and power industries. Our PTFE Gaskets (polytetrafluoroethylene gaskets) are chemically resistant in a way that cannot be matched, with excellent dielectric properties and can be relied upon in high-temperature sealing and cryogenic applications, and food-grade applications. Every enlarged PTFE or filled PTFE gasket is made with high dimensional accuracy to operate leak-free.
Our non-asbestos gaskets are compressed sheets reinforced with aramid fibre sheets, which provide thermal stability and uniform performance of gaskets even during service over steam and water. These non-asbestos gasket materials are safe substitutes for traditional asbestos and are strong at high pressures.
As an international manufacturer and exporter of gaskets, Asian Sealing provides the highest material traceability, quality assurance, and reliability in the delivery of any sealing needs to the industry.
Usage of industries
Oil and Gas
Chemical Industry
Power Generation
Mining
Marine
Request A Quote
By submitting this form, you agree to the privacy policy and terms of use.
Asian Sealing Products is a supplier of a complete assortment of PTFE and CNAF gaskets, virgin, glass-filled PTFE, and CNAF Gaskets (compressed non-asbestos fibre gaskets). Our gaskets are designed to perform consistently in various industries because they are high-temperature and chemical-resistant.
Asian Sealing Products is a supplier of a complete assortment of PTFE and CNAF gaskets, virgin, glass-filled PTFE, and CNAF Gaskets (compressed non-asbestos fibre gaskets). Our gaskets are designed to perform consistently in various industries because they are high-temperature and chemical-resistant.

ReinforCedGraphite
Gasket Reinforcements

General Compressed
Non-Asbestos Fibre
Chemical Resistance
The PTFE gaskets are highly resistant to acids, solvents, and corrosive fluids; therefore, they are the best chemical-resistant gasket in the industrial, petrochemical, and process gasket.
Wide Temperature Tolerance
PTFE and CNAF gaskets are durable depending on the sealing temperature, -200degC to +260 °C, which is effective in cryogenic and high-temperature sealing systems.
Non-Stick & Low Friction
The PTFE gaskets have a natural, smooth, low-friction surface that minimizes wear, accumulation, and promotes the life of equipment in chemical and water-line sealing.
FDA-Approved for Sensitive Use
Our FDA-based PTFE gaskets are safe, contamination-free, and are relied upon to provide safe, non-asbestos-contaminated seals in the processing of food, beverages, and pharmaceutical products.
All industries have different sealing needs, such as purity in the pharma industry and anti-corrosion in petrochemical systems. Asian Sealing Products offers PTFE and CNAF gaskets that are made to work under pressure. Our PTFE gaskets, such as expanded (ePTFE) and glass-filled, are resistant to chemicals and meet the FDA requirements. Our CNAF gaskets provide non-asbestos, high-pressure sealing of steam, oil, and industrial pipelines and have proven themselves reliable in extreme conditions.
All industries have different sealing needs, such as purity in the pharma industry and anti-corrosion in petrochemical systems. Asian Sealing Products offers PTFE and CNAF gaskets that are made to work under pressure. Our PTFE gaskets, such as expanded (ePTFE) and glass-filled, are resistant to chemicals and meet the FDA requirements. Our CNAF gaskets provide non-asbestos, high-pressure sealing of steam, oil, and industrial pipelines and have proven themselves reliable in extreme conditions.
Pharmaceutical
Petrochemical Resilience
Food and Beverage Prowess
Aerospace Precision
Oil and gas industries
Boilers, pipelines, and heat exchangers
Marine and shipbuilding
Mining and heavy machinery
PTFE and CNAF gaskets are manufactured using various materials based on the application’s requirements. The material selection depends on factors such as the type of fluids being sealed, operating conditions (including temperature and pressure), and the overall environment. Here are some common materials used for manufacturing PTFE and CNAF gaskets:
Ring gaskets are manufactured using various materials based on the application’s requirements. The material selection depends on factors such as the type of fluids being sealed, operating conditions (including temperature and pressure), and the overall environment. Here are some common materials used for manufacturing ring gaskets:
Natural Rubber
Shore Hardness : 50° – 80° Shore D. Maximum Operating Temperature : 80°C
Neoprene Rubber
Shore Hardness : 50° – 80° Shore D. Maximum Operating Temperature : 100°C
Silicone Rubber
Shore Hardness : 50° – 80° Shore D. Maximum Operating Temperature : 215°C
EPDM Rubber
Shore Hardness : 50° – 80° Shore D. Maximum Operating Temperature : 148°C
Butyl Rubber
Shore Hardness : 50° – 80° Shore D. Maximum Operating Temperature : 100°C
Nitrile Rubber (NBR)
Shore Hardness : 50° – 80° Shore D. Maximum Operating Temperature : 105°C
Viton Rubber
Shore Hardness : 50° – 80° Shore D. Maximum Operating Temperature : 204°C
SBR Rubber
Shore Hardness : 50° – 80° Shore D. Maximum Operating Temperature : 100°C
PTFE Gasket Types and Their Properties
Our PTFE Gaskets ( Polytetrafluoroethylene Gaskets) are designed to withstand a variety of industrial sealing needs at Asian Sealing Products, such as chemical-resistant pipelines, high pressure, and cryogenic applications. All types of gaskets are precisely designed, compatible, durable, and safe to operate in diverse operating conditions.
Raised-Face Gaskets
These gaskets are compatible with high-pressure sealing and leak-free in a high-pressure environment with raised-face flanges, which provide high compression strength and high sealing performance. The flange face has the same diameter as the outer one, which ensures uniform distribution of the load during any critical operation.
Full-Face Gaskets:
These gaskets are designed to fit flat-face flanges and are designed to cover the complete surface, including the holes in the bolts. They offer a smooth surface, do not distort flanges, and are a perfect fit where a non-distorted surface and chemical resistance are required.
Customized Gasket Types:
We produce tailored PTFE gaskets to fit non-standard flanges, equipment, or sealing geometries. These gaskets are engineered to meet the specific industrial and mechanical requirements since they are made in virgin, carbon-filled, or glass-filled PTFE.
Envelope Gaskets:
These gaskets are composed of a PTFE envelope with a strong core (rubber, CNAF, or graphite) and offer flexibility as well as chemical protection. They are suitable for all processes that involve acids, solvents, and aggressive fluids, which provide good sealing in the moderate conditions of temperature and pressure.
Expanded PTFE Gaskets (ePTFE):
These gaskets are made of expanded PTFE with a micro-fibrous structure to provide excellent compressibility, low creep, and dielectric properties. The fact that they can be sealed with a high degree of security even on irregular or damaged flanges, and have a high degree of chemical resistance and a temperature range between -200 °C and 260 °C.
CNAF Gasket Types and Their Properties
Asian Sealing Products also has a variety of CNAF (Compressed Non-Asbestos Fibre) gaskets, which are designed to be used in heat, pressure, and in the presence of chemicals. These non-asbestos gaskets are made using sheets of aramid fibre and glass fibre and high-technology elastomeric binders to ensure uniform sealing strength through the many industrial applications.
Aramid Fibre with NBR Binder
This grade, which is designed to resist oil, fuel, and hydrocarbons, provides stability and durability of internal combustion engines and high-pressure sealing systems. It comes as sheets or precision-cut gaskets, and is finished on both sides with a 3xA anti-stick coating to be removed easily and offer a long service life.
Glass Fiber with NBR Binder
This variant is economical and reliable, with the addition of structural integrity and general industrial and chemical-resistant applications. It is highly bonded, providing it with good compression recovery to provide secure sealing under moderate temperature and pressure conditions.
SBR/NR Binder Fibre Aramid with SBR.
A water-safe, air-safe, and non-aggressive fluid-controlled swell high premium material. It provides moderate oil resistance, high flex, and low cost of installation, and is suitable for steam lines, boilers, and low-pressure industrial sealing processes.
Reinforced Graphite Gaskets
Reinforced Graphite Gaskets are produced through the integration of a combination of expanded graphite along with tanged stainless steel in order to provide high strength and stability when subjected to severe pressure and temperature. The reinforcement eliminates gasket hardening, which guarantees a long life and similar sealing behavior.
These gaskets are very good in terms of chemical resistance and application in steam, oil, and chemical processing. Ordinary reinforcement grades are SS 304 and SS 316 to ensure higher durability.
They are often used alongside PTFE and CNAF gaskets in complex sealing systems, making them a dependable solution for high-pressure non-asbestos and chemical-resistant environments.
Expanded PTFE Materials
Why Choose Us?
At Asian Sealing Products, we specialize in precision-engineered PTFE and CNAF gaskets designed for dependable performance across critical industries. Our PTFE gaskets (Polytetrafluoroethylene gaskets) and CNAF gaskets (compressed non-asbestos fibre gaskets) are high-quality gaskets and are used in high-temperature sealing, cryogenic applications, and FDA-compliant applications.
As a trusted PTFE gasket supplier and CNAF gasket manufacturer, we provide tailored solutions for every industrial sealing requirement.
1. High-tech Material Choice
Our gaskets are manufactured with Virgin PTFE and Carbon-Filled PTFE and CNAF Sheet Material, providing the best chemical resistance, low creep, and uniform gasket material.
2. Engineered for Performance
Our PTFE gaskets can be found in high-temperature to cryogenic sealing, offering durability and dielectric properties, and CNAF gaskets can be used to provide stability in the face of water, steam, and oil.
3. Industry-Specific Solutions
We are the distributor of sealant products to petrochemical, oil and gas, boiler, and flange gasket systems, all of which are capable of operating under difficult conditions.
4. Professional Advising and Recruiting
A detailed gasket selection guide assists our specialists in advising customers on when to utilize CNAF, the maximum temperature of PTFE gaskets, and the appropriate material.
5. Stamped Quality and Internationalization
We are ISO ISO-certified gasket manufacturer and exporter that guarantees accuracy, traceability, and quick delivery through our global CNAF gasket distributor network.
| Sl.No | Grade | Filler Content by Weight (%) | Properties |
|---|---|---|---|
| 1 | Virgin PTFE | Nil | Hygienic. Excellent Chemical Resistance. Outstanding electrical properties. |
| 2 | Glass filled PTFE | 15 – 25 | High compressive strength. Excellent chemical resistance. Improved wear resistance under load & permanent deformation. |
| Sl.No | Material | Shore Hardness | Maximum Operating Temperature |
|---|---|---|---|
| 1 | PTFE (Polytetrafluoroethylene) | 50° – 65° Shore D | 240°C |
| 2 | 25% Glass filled PTFE (Polytetrafluoroethylene) | 60° – 75° Shore D | 240°C |
| 3 | 25% Carbon filled PTFE (Polytetrafluoroethylene) | 60° – 75° Shore D | 240°C |
| Feature | PTFE Gaskets | CNAF Gaskets |
|---|---|---|
| Material | Polytetrafluoroethylene | Compressed Non-Asbestos Fiber (Aramid, Glass, etc.) |
| Temperature Range | -200°C to +260°C (-328°F to +500°F) | Up to +400°C (typically +350°C / +662°F) |
| Chemical Resistance | Excellent (highly resistant to most chemicals and corrosive fluids) | Good (resistant to oils, fuels, gases, and some chemicals) |
| Pressure Resistance | Moderate to High (depending on type and design) | High (especially in reinforced types) |
| Flexibility & Conformability | Good to Excellent (especially expanded PTFE) | Good |
| Friction Coefficient | Very Low (non-stick properties) | Moderate |
| Applications | Pharmaceutical, chemical processing, food & beverage, aerospace, electrical insulation | Oil & gas, boilers, pipelines, heat exchangers, marine, mining, general industrial |
| Cost | Generally Higher | Generally Lower |
| FDA Compliance | Available for food and pharmaceutical applications | Not typically FDA compliant |
| Electrical Properties | Excellent dielectric properties | Poor Dielectric Properties |
| Mechanical Strength | Moderate, enhanced with fillers | High tensile strength and durability |
| Creep Resistance | Expanded PTFE has excellent creep resistance | Good |
| Rubber Type | Shore Hardness | Max Operating Temperature |
|---|---|---|
| Natural Rubber | 50° – 80° Shore D | 80°C |
| Neoprene Rubber | 50° – 80° Shore D | 100°C |
| Silicone Rubber | 50° – 80° Shore D | 215°C |
| EPDM Rubber | 50° – 80° Shore D | 148°C |
| Butyl Rubber | 50° – 80° Shore D | 100°C |
| Nitrile Rubber (NBR) | 50° – 80° Shore D | 105°C |
| Viton Rubber | 50° – 80° Shore D | 204°C |
| SBR Rubber | 50° – 80° Shore D | 100°C |
Redefine the standards of your Industrial Gaskets
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