Molded PTFE Sheet Gaskets

Molded PTFE Sheet Gaskets

Molded PTFE Sheet Gaskets can be furnished with one or more surfaces modified by either sodium ammonia or sodium naphthalene etch to ensure excellent bonding ability. Molded PTFE sheets are available in a wide range of virgin and modified resins as well as PTFE compounds.

Model:KXT PMS

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Product Description

Molded PTFE Sheet Gaskets – Custom‑Engineered Virgin & Filled PTFE Gaskets for Demanding Sealing Applications

Kaxite Sealing is a premier China-based manufacturer and supplier of molded PTFE sheet gaskets (Model KXT PMS) – high‑quality gaskets produced from compression‑molded PTFE sheets with exceptional chemical resistance, low friction, and wide temperature tolerance. Our molded PTFE sheet gaskets are available in virgin, modified, and filled grades (glass, carbon, graphite, bronze, etc.) to meet specific mechanical and thermal requirements. They can be furnished with sodium ammonia or sodium naphthalene surface etching on one or both sides to ensure excellent bonding to flange surfaces, making them ideal for demanding applications in chemical processing, electronics, heavy electricals, valves, pumps, and more. With thicknesses up to 50 mm and custom sheet sizes, we provide tailored gasketing solutions for critical service conditions.

As a trusted factory direct supplier in China, Kaxite offers custom sizes, surface etching, and filled compounds at competitive wholesale pricing. Request your price list and free sample →

Molded PTFE Sheet Gaskets – examples of molded sheets

Molded PTFE sheets – available in various thicknesses and sizes

Why Choose Molded PTFE Sheet Gaskets?

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Chemical Resistance

Astonishing resistance to almost all chemicals – ideal for corrosive media.

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Wide Temperature Range

From -200°C to +250°C – suitable for cryogenic and high‑heat services.

Best Electrical Properties

Excellent insulation – ideal for electronics and heavy electricals.

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Lowest Friction

Lowest coefficient of friction of any solid material – reduces wear.

Technical Specifications – Molded PTFE Sheet Gaskets (KXT PMS)

Property Value / Range
Material Virgin, modified, or filled PTFE (glass, carbon, graphite, bronze)
Thickness Range 1.5 – 50 mm (custom available)
Sheet Size Up to 1500×1500 mm, custom
Temperature Range -200°C to +250°C
Tensile Strength (MPa) ≥ 20 (virgin); varies by filler
Density (g/cm³) 2.13 – 2.24 (virgin)
Dielectric Strength (kV/mm) ≥ 20
Surface Treatment Sodium ammonia or sodium naphthalene etch (one or both sides) – optional
Compliance FDA 21 CFR 177.1550 (virgin grade)

* Custom thicknesses, filled compounds, and etch patterns available. Contact our technical team.

Key Advantages

  • Lowest coefficient of friction – reduces torque requirements and extends service life
  • Exceptional chemical resistance – unaffected by most aggressive chemicals
  • Wide temperature capability – retains properties from -200°C to +250°C
  • Best dielectric properties – suitable for high‑voltage insulation
  • Custom surface etching – improves adhesion for bonding to flanges or other surfaces

Typical Applications

⚡ Electronics (circuit boards) 🔧 Heavy Electricals 🔩 Valves & Pumps 🧪 Chemical Processing 🍽️ Food & Pharmaceutical Gasketing 🛢️ Petrochemical Equipment

Surface Etching for Enhanced Bonding

Our molded PTFE sheet gaskets can be furnished with sodium ammonia or sodium naphthalene etching on one or both surfaces. This chemical treatment modifies the PTFE surface, creating a microscopically rough and chemically active layer that enables excellent adhesion to flange surfaces, coatings, or adhesives. This is particularly beneficial for applications where gasket movement or blowout resistance is critical. Custom etch patterns and partial etching are also available.

* Etching services available upon request – inquire with our sales team.

Frequently Asked Questions – Molded PTFE Sheet Gaskets

What are molded PTFE sheet gaskets?

Molded PTFE sheet gaskets are die‑cut or custom‑fabricated gaskets produced from compression‑molded PTFE sheets. They offer the same outstanding properties of PTFE – chemical inertness, low friction, wide temperature range – and can be tailored in thickness, size, and filler content to meet specific application requirements.

What is the advantage of etching the PTFE surface?

Etching creates a chemically active, roughened surface that allows adhesives, coatings, or flange surfaces to bond securely to PTFE, which is otherwise non‑stick. This prevents gasket displacement and improves sealing reliability under high pressure or vibration.

What thicknesses are available for molded PTFE sheet gaskets?

We offer thicknesses from 1.5 mm up to 50 mm, with custom thicknesses available on request. Sheet sizes can be up to 1500×1500 mm or custom dimensions.

Are filled PTFE grades available?

Yes, we offer glass‑filled, carbon‑filled, graphite‑filled, bronze‑filled, and other compounds to enhance mechanical strength, wear resistance, and thermal conductivity. Please specify your requirements when ordering.

Can these gaskets be used in food or pharmaceutical applications?

Yes, our virgin PTFE grades comply with FDA 21 CFR 177.1550 and are suitable for food, beverage, and pharmaceutical contact applications. Filled grades may require additional validation.

Why Source from Kaxite Sealing – Your Trusted Molded PTFE Sheet Gasket Manufacturer in China

  • 20+ years of PTFE manufacturing expertise
  • ISO 9001 certified production
  • ✔ Exported to 40+ countries worldwide
  • In‑house molding & etching capabilities
  • Custom sizes & thicknesses – any dimension
  • Filled & virgin grades – wide material selection
  • Flexible logistics – sea, air, express from Ningbo/Shanghai
  • 24/7 technical support – prompt response to inquiries

Packaging & Worldwide Delivery

Packaging: Anti‑static film + cardboard boxes or wooden crates
Shipping: Sea freight, air freight, DHL/UPS/FedEx
Lead Time: 7–15 days (bulk), 3–5 days (samples)
Port: Ningbo, Shanghai, China

* Custom packaging and labelling available. View packaging & shipping details →

Ready to Order? Contact Kaxite – China's Reliable Molded PTFE Sheet Gasket Manufacturer

As a premier China supplier of molded PTFE sheet gaskets, Kaxite provides high‑quality products at factory‑direct prices. Whether you need a sample, a price list, or a bulk order, our experienced team is ready to support you with technical advice and prompt service.

📞 Call us: 0086-574-87527771  |  ✉️ Email: cindy@seal-china.com  |  🌐 Visit: www.expandedptfesheets.com

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