PTFE  and CNAF Gaskets

Explore our diverse range of PTFE gaskets, each meticulously crafted to meet the unique demands of various industries. We understand that one size doesn’t fit all, which is why we offer a variety of PTFE gasket types, each designed for specific applications. Discover the perfect match for your needs.

Raised-Face Gaskets:

• Designed for use with raised-face flanges.  
• The gasket’s outer diameter matches the flange’s raised face.
• Commonly used in high-pressure applications.

Full-Face Gaskets:

• Designed for use with flat-face flanges.  
• The gasket covers the entire flange face, including bolt holes.  
• Provides maximum sealing surface and distributes pressure evenly.
• Often used on weaker flanges.

Customized Gasket Types:

• Manufactured to specific dimensions and shapes to meet unique application requirements.
• Ideal for non-standard flanges or specialized equipment.
• Can be made from any type of PTFE.

Envelope Gaskets:

• Consists of a PTFE outer layer (envelope) surrounding a core material (e.g., rubber, fiber).  
• PTFE envelope gaskets comprise a compressed synthetic fiber gasket material insert with a PTFE envelope
• The envelope protects the gasket from chemical attacks and provides required strength and resilience for demanding sealing operations
• PTFE envelope gaskets offer excellent chemical resistance under moderate conditions of temperature and pressure.

Expanded PTFE Gaskets (ePTFE):

• Made from expanded PTFE, which has a fibrous microstructure.  
• Highly compressible and conformable, providing excellent sealing on irregular surfaces.  
• Expanded PTFE materials have excellent creep resistance and bolt torque retention properties
• Offers superior chemical resistance and a wide temperature range.  
• Often sold as tape, or sheet stock.
• Since the material is available in roll form, it offers a solution to jointing needs without the need to maintain large stocks of cut gaskets  

Filled PTFE Gaskets (Glass-filled, Carbon-filled):

• PTFE blended with fillers like glass or carbon to enhance specific properties.  
• Glass-filled PTFE: Increases compressive strength and reduces creep.  
• Carbon-filled PTFE: Improves wear resistance and electrical conductivity.
• The fillers alter the mechanical properties of the pure PTFE.

Our product line features a wide array of CNAF gaskets, each designed to meet the specific requirements of different industrial applications. We offer various CNAF types, formulated with different fiber and binder combinations, to ensure optimal performance in diverse operating conditions. Explore our selection to find the right CNAF gasket for your needs.

Aramid Fiber with NBR Binder

• Good resistance to oils, fuels, hydrocarbons
• Successful in internal combustion engine applications
• Available in sheet form as cut gaskets
• 3xA anti-stick finish on both sides

Glass Fiber with NBR Binder

• • Adds structural integrity to the gasket
  • It is a fantastic economical option for general industrial services
  • Exhibit good resistance to a variety of chemicals.

• 3xA anti-stick finish on both sides

           Aramid Fiber with SBR/NR Binder

• Premium grade, controlled-swell materials
• Available in sheet form and as cut gaskets
• 3xA anti-stick finish on both sides
• lower resistance to oils and fuels compared to NBR
• perform well in applications involving water, air, and other non-aggressive fluids.

• Remarkable chemical resistance

The “reinforced” aspect refers to the addition of a reinforcing material, typically a metal, to enhance the gasket’s structural integrity. They’re made from pure carbon that’s been specially treated to expand its structure. This expanded carbon is then rolled into thin, flexible foils. These foils are layered together to create thicker sheets for gaskets and seals.

• Reinforced graphite gaskets are a crucial component in many industrial applications, particularly those involving extreme temperatures and pressures. 
• Ideal for steam applications as they don’t harden over time.
• Long service life.
• Versatile chemical compatibility.
• Reinforced Graphite Gaskets Reinforcement: 

1.  Tanged Stainless steel 316
2. Tanged Stainless steel 304

• Natural Rubber:
  Offers excellent tensile strength and flexibility, making it ideal for dynamic gasket applications where elasticity is required.
• Neoprene Rubber:
  Known for its resistance to oil, weathering, and moderate chemicals, a popular choice for HVAC and refrigeration systems.
• Silicone Rubber:
  Exceptional thermal stability and flexibility at both high and low temperatures; perfect for food-grade and medical applications.
• EPDM Rubber:
  Resistant to weather, ozone, and steam; widely used in water and outdoor sealing applications.
• Butyl Rubber:
  Excellent impermeability to gases and chemicals; suitable for vacuum sealing and chemical-resistant gaskets.
• Nitrile Rubber (NBR):
  Best known for oil and fuel resistance, ideal for automotive and industrial fluid-handling applications.
• Viton Rubber:
  Premium fluorocarbon rubber offering excellent resistance to aggressive chemicals and high temperatures.
• SBR Rubber:
  Cost-effective synthetic rubber with good abrasion resistance; commonly used in general-purpose gasket applications.
  

When it comes to precision sealing solutions, Asian Sealing Products stands out as a trusted name in the industry. Our expertise in manufacturing PTFE gaskets and CNAF gaskets is backed by years of experience, advanced technology, and a strong commitment to quality.

✅ Superior Quality Materials

We use only premium-grade PTFE and high-performance CNAF materials that ensure exceptional chemical resistance, durability, and temperature tolerance.

✅ ISO-Certified Manufacturing

Our production facilities follow strict ISO-certified quality processes, ensuring every gasket meets international performance and safety standards.

✅ Customization Capability

From standard gasket sizes to highly specialized designs, we offer custom-cut PTFE and CNAF gaskets tailored to your specific industry needs—chemical, oil & gas, pharma, food processing, or power generation.

✅ In-House Technical Expertise

Our engineering team works closely with clients to recommend the best sealing solution based on pressure, media, temperature, and flange conditions.

✅ Global Supply Network

With a strong domestic and international distribution channel, we guarantee fast and reliable delivery of gasket solutions to clients worldwide.

✅ Competitive Pricing & Reliable Support

We provide high-performance sealing products at cost-effective prices, along with excellent pre- and post-sales technical support.

Whether you need chemically inert PTFE gaskets for corrosive environments or robust CNAF gaskets for industrial applications, Asian Sealing Products is your go-to manufacturer for reliability, performance, and value.