FEP Coated Silicone O-Ring

Name: Customized FEP Coated Silicone O-Ring Manufacturers, Suppliers, Factory - KAFLON
Brand: Kaflon
SKU: 296915719

High-Performance Hygienic Seals for Food, Pharmaceutical & Chemical Applications-These O-rings are commonly used in food and beverage equipment, pharmaceutical production, chemical processing, and laboratory applications, where both elastic sealing and chemical resistance are critical.

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Product Overview

KAFLON® FEP Coated Silicone O-Rings combine the flexibility and elasticity of high-purity silicone with the chemical and thermal resistance of a thin FEP (fluorinated ethylene propylene) coating.

The FEP layer acts as a protective barrier against aggressive chemicals, high temperatures, and contamination, making these O-rings ideal for applications that require hygienic performance, regulatory compliance, and long-term reliability.

Key Features & Benefits

✔ High chemical resistance thanks to FEP encapsulation

✔ Excellent thermal stability (-60°C to +200°C)

✔ Biocompatible and food-grade suitable

✔ Superior flexibility and elasticity from silicone core

✔ Low friction for dynamic sealing applications

✔ Minimizes contamination and leaching in hygienic systems

✔ Long-term durability in aggressive environments

Material Specifications

Feature	Description
Core Material	High-purity Silicone Rubber (VMQ)
Coating	FEP (Fluorinated Ethylene Propylene)
Temperature Range	–60°C to +200°C
Compliance	FDA 21 CFR 177.2600, USP Class VI options
Color	White, Translucent, or Custom
Applications	Food & Beverage, Pharma, Chemical, Laboratory
Dynamic Performance	Suitable for low- to medium-speed dynamic sealing

Typical Applications

These O-rings are suitable for both static and dynamic sealing where chemical resistance, purity, and temperature stability are required.

Food processing and packaging machinery

Beverage filling and CIP/SIP systems

Pharmaceutical manufacturing and cleanroom systems

Hygienic pumps, valves, and diaphragm assemblies

Chemical reactors and laboratory equipment

High-purity fluid handling systems

Why Choose KAFLON® FEP Coated Silicone O-Rings?

Combines silicone elasticity with FEP chemical protection

Ensures regulatory compliance (FDA, USP Class VI)

Provides long-term reliability in harsh or high-purity environments

Reduces maintenance and contamination risk in sensitive systems

Compatible with a wide range of fluids, including acids, bases, and cleaning agents

Frequently Asked Questions

What is the difference between PTFE and FEP Coated Silicone O-Ring?

FEP Coated Silicone O-Ring are made from elastomeric materials encapsulated with fluoropolymers, offering better elasticity and easier installation compared to solid PTFE O-rings, while maintaining similar chemical resistance.

In what industries can KAFLON FEP Coated Silicone O-Ring be used?

These O-rings are suitable for industries such as chemical processing, food & beverage, pharmaceuticals, oil & gas, semiconductors, and hydraulic systems, where both chemical resistance and flexibility are required.

How do FEP Coated Silicone O-Ring compare to pure PTFE O-rings?

FEP Coated Silicone O-Ring provide better flexibility and improved sealing performance in dynamic and high-pressure environments, making them easier to handle and install while offering similar or superior chemical resistance.

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