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 PTFE Full Face Gasket Teflon Gasket

High-Performance Non-Stick, Chemical Resistant Gasket Solution for Industrial Flange Sealing

By RUBASIA RUBBERTECH INDUSTRIES – Your Trusted Gasket Supplier in Borneo (Sabah, Sarawak, Brunei)

1. Product Overview

The PTFE Full Face Gasket (also known as Teflon Full Face Gasket) from RUBASIA RUBBERTECH INDUSTRIES is a precision-engineered sealing component designed to provide maximum chemical resistance, non-stick performance, and thermal stability for industrial flange joints.

Manufactured from 100% Virgin Polytetrafluoroethylene (PTFE) — a premium fluoropolymer material — this gasket offers exceptional inertness, broad chemical compatibility (pH 0–14), and durability under wide temperature ranges from −200°C to +260°C.

These gaskets are pre-cut to exact flange dimensions (ANSI, JIS, BS, PN standards) and designed to cover the entire flange face, including the bolt holes. This ensures a complete sealing surface, preventing leaks even under high chemical or thermal stress conditions.

2. Technical Specifications

3. Product Construction & Design

RUBASIA’s PTFE Full Face Gasket is designed for flat-faced flanges where full surface coverage is necessary to prevent corrosive media leakage.

Each gasket is precision CNC-cut or die-cut to match the flange’s outer diameter and bolt hole pattern. The bolt holesallow the gasket to align perfectly with flange bolts, ensuring uniform load distribution and balanced sealing pressure.

The full-face design differs from a “ring type” gasket because it extends to the outer flange edge — protecting the entire sealing area from media attack or corrosion.

This design is ideal for corrosive or clean-service pipelines, where both mechanical integrity and contamination prevention are critical.

4. Chemical Resistance & Compatibility

PTFE is chemically inert to nearly all industrial chemicals and solvents. It is unaffected by:

• Acids: Hydrochloric, Sulphuric, Nitric, Phosphoric, Hydrofluoric
• Bases: Sodium Hydroxide, Ammonium Hydroxide, Potassium Hydroxide
• Solvents: Acetone, Benzene, Toluene, Alcohols, Ethers, Ketones
• Oxidizing Agents: Chlorine, Bromine, Hydrogen Peroxide
• Hydrocarbons: Diesel, Petrol, Crude oil, Aromatics
• Water and Steam: No swelling or degradation

Because PTFE does not absorb moisture or react with chemicals, it’s perfect for food, pharmaceutical, and cleanroomenvironments.

5. Performance Characteristics

6. Applications

RUBASIA PTFE Full Face Gaskets are extensively used across industrial, commercial, and sanitary sectorsthroughout Borneo (Sabah, Sarawak, Brunei):

6.1. Chemical & Petrochemical

• Acid pipelines, chemical reactors, and solvent systems
• Chlorine and caustic soda plants
• Chemical mixing and dosing stations

6.2. Oil, Gas & Marine

• Offshore platforms, refineries, and gas treatment systems
• Oil storage tanks and loading terminals
• Ship engine rooms, valve connections, and marine fuel lines

6.3. Food & Beverage

• Bottling lines, breweries, water treatment systems
• Palm oil refineries, edible oil processing, sugar refineries
• Food-contact pipelines requiring sanitary and non-toxic materials

6.4. Pharmaceutical & Medical

• Cleanrooms, sterile water pipelines, bioprocess systems
• Cosmetic and chemical formulation units

6.5. Water Treatment & Desalination

• Chlorination systems, filter housings, desalination equipment
• Pump flanges, valve flanges, and metering systems

6.6. Power Generation & Utilities

• Boiler systems, cooling water systems, steam lines
• Chemical dosing and fuel transfer systems

6.7. Laboratory & Semiconductor

• Analytical equipment, high-purity chemical transfer, and vacuum systems

7. Installation Guidelines

Proper installation ensures long-term gasket performance. Follow these steps:

1. Surface Preparation:
   Clean flange faces thoroughly; remove rust, oil, old gasket residue, and dirt.
2. Inspect Flange Flatness:
   Ensure flanges are parallel and free from surface damage.
3. Gasket Placement:
   Align the PTFE full face gasket with flange bolt holes accurately.
4. Bolt Lubrication:
   Apply lubricant to bolt threads to ensure uniform torque application.
5. Tightening Sequence:
   Use a crisscross pattern (star pattern) for tightening bolts gradually in 3 stages:
   • Stage 1: Hand-tighten bolts evenly.
   • Stage 2: Tighten to 50% torque.
   • Stage 3: Tighten to final torque (as per flange rating).
6. Torque Recommendation:
   Use torque values according to flange size, pressure class, and bolt type.
7. Inspection:
   After assembly, check for leaks under low pressure before full operation.
8. Re-Torque (if required):
   After 24 hours of operation, re-check bolt torque to ensure seal integrity.

8. Borneo Market Coverage (Sabah, Sarawak, Brunei)

RUBASIA RUBBERTECH INDUSTRIES supplies PTFE gaskets to all industrial towns, oilfields, ports, and factories across Borneo:

Sabah

Kota Kinabalu Sandakan Tawau Lahad Datu Keningau Tenom Kudat Ranau Beaufort Sipitang Kota Belud Kota Marudu Papar Tuaran Penampang Putatan Kunak Semporna Nabawan Tambunan Telupid Beluran Tongod Pitas Kalabakan Membakut Bongawan Kimanis Kuala Penyu Tambisan

Sarawak

Kuching Miri Sibu Bintulu Limbang Kapit Sri Aman Sarikei Betong Mukah Bau Serian Lawas Marudi Lundu Belaga Kanowit Song Dalat Daro Simunjan Pakan Julau Asajaya Engkilili Lubok Antu Sebuyau Tatau Samarahan Selangau

Brunei

Bandar Seri Begawan Kuala Belait Seria Tutong Bangar Muara Gadong Jerudong Lumut Rimba Kiulap Berakas

RUBASIA delivers directly to factories, refineries, shipyards, water plants, universities, hospitals, and government projects across the region.

9. Quality & Standards

• ISO 9001 Certified Manufacturing
• FDA 21 CFR 177.1550 Compliant (Food Safe)
• ASTM D1457 / D4894 Material Standards
• ASME B16.21 Flange Gasket Dimensions
• DIN EN 1514-1 & JIS B2404 Standards
• RoHS & REACH Compliant

10. Customization Options

• Filled PTFE options available:
  • Glass-filled PTFE (for dimensional stability)
  • Carbon-filled PTFE (for improved wear resistance)
  • Graphite-filled PTFE (for higher pressure and temperature)
• Available in sheet, roll, or pre-cut form
• Custom dimensions for non-standard flanges or OEM equipment

11. Why Choose RUBASIA RUBBERTECH INDUSTRIES

• Over 20 years of experience in industrial rubber & sealing products
•  Local Borneo stock for faster delivery (Sabah, Sarawak, Brunei)
•  Technical support team for chemical and temperature compatibility selection
•  Custom CNC cutting for precision gaskets
•  Trusted by petrochemical, marine, and food industries across East Malaysia
• Competitive pricing with ISO-certified quality assurance