Freudenberg Performance Sealing Materials

“Materials” are the foundation of our technology. Every day, people deal with products that possess seals and they generally know very little about the materials with which they are made. For example, plastic is a comparatively new material and has long been considered to be a “wonder substance”. But why is plastic so flexible and how are the various mixtures differentiated from one another? When is a silicone seal better than one made of polyurethane or rubber?

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Freudenberg Materials - Your Advantage

As a worldwide sealing technology leader – with vast resources and experience – Freudenberg is uniquely positioned to provide exceptional engineering, manufacturing and customer support wherever you do business. Every part is manufactured to the highest industry standards, with documented traceability.

With more than 170 years of experience, we offer the industry’s broadest lineup of standardized materials and continually develop new ones for customer applications. With our own development lab, our own in-house mixers and an array of 1,700-plus compounds made from 850 raw materials, our options are virtually unlimited.

Our team of experts is ready to help you today.

Material Overview

ACM

ACM elastomers are made of polar acrylic acids. As polar materials, they display good resistance to high-additive lubricating oils.

EPDM

Thanks to its excellent stability in water and aqueous solutions, EPDM is one of the most widespread materials in the food and pharmaceuticals industry with its share of approx. 70 percent.

FFKM - SIMRIZ®

With Simriz® perfluoroelastomer, Freudenberg Sealing Technologies offers the processing industry the High-End solution in materials technology for sophisticated applications regarding media and temperature stability.

FKM

Because of their wide range of compounding possibilities, FKM materials from Freudenberg Sealing Technologies offer great flexibility to suit the respective customer-specific application.

Fluoroprene® XP

Fluoroprene® XP is the premium allrounder amongst our quality materials, which unifies the advantages of EPDM and FKM particularly cost-effectively.

HNBR

HNBR is produced through the selective hydrogenation of NBR. The reactive double bonds are removed from NBR.

NBR Material Seal, NBR Oil Seal

It is used for oil- and fuel-resistant seals such as Simmerrings, O-rings and frame seals. The use of NBR marked the arrival of elastomers as a sealing material particularly in general industry.

NR

In its original form, latex is greasy and sticky. Natural rubber is an elastic polymer, built on isoprene as its monomer.

PA

Polyamides offer high strength, rigidity and durability with good chemical resistance and processability. They feature high resistance to wear and good anti-friction properties.

PAI

PAI is a thermoplastic that has high strength and stiffness up to 275°C while offering outstanding resistance to creep, wear, and chemical attack.

PEEK

PEEK offers similar chemical stability to PTFE, however has better mechanical properties. A material which is becoming increasingly popular in processing technology due to its stability at high temperatures.

POM

POM stands out for its high strength, hardness and rigidity over a wide range of temperatures. It even maintains its durability at low temperatures.

PTFE

PTFE from Freudenberg Sealing Technologies is very impressive with its great media stability and can be optimized for the respective application by blending it.

Polyurethane, Foam acoustic, safe packaging material

PUR, PU

Polyurethanes offer an alternative in cases where rubber elastomers cannot be used or where highly specialized elastomers are out of the question for cost-related reasons.

VMQ, PVMQ, FVMQ

VMQ silicone elastomers are used in demanding thermal applications, and, due to their purity, are especially suited for hygienic uses in the food and pharmaceutical industries.Silicone rubbers belong to the category of synthetic polymers in which silicon atoms are linked together with oxygen atoms.

Our Materials related Services

CIP-/SIP-Guide

The suitable tool for every requirement.

Continue to CIP-/SIP-Guide

Chemical Resistance Guide

Find suitable sealing materials for common process media.

Continue to Chemical Resistance Guide

News and Stories on Our Materials

30.11.2023

Solving Real Customer Problems Every Day

Freudenberg Sealing Technologies works with some of the industry's best partners to solve real-world problems for end users every day.

Simriz® FFKM from Freudenberg Sealing Technologies

07.11.2023

A Fast, Superior Material Solution

Simriz® FFKM from Freudenberg Sealing Technologies sees strong growth in demand.

Bouyancy Modules for Offshore Wind Parks

26.10.2023

Material Development: Boosting Wind Power

Discover our new EPDM material for buoyancy modules in floating wind turbines. The material features excellent pressure and temperature resistance along with high durability.

Piston Seal for Customers in the Construction Equipment Sector

04.10.2023

High-Performance Material Offers Alternative to PTFE: Better Properties At Lower Costs

Material developed in-house by Freudenberg Sealing Technologies offers cost-effective sealing alternatives to PFAS-based products.

19.09.2023

Of Eucalyptus and Bone Ash

Sustainable ingredients will help curb the carbon footprint of some polymer compounds at Freudenberg.

ETU-free Compound used in Automotive Industry

10.07.2023

Benchmark For New Elastomer Compounds

ETU-free compound from Freudenberg Sealing Technologies for cross-linking chloroprene rubber.

Freudenberg Sealing Technologies’ speaker surrounds use Dispersed Fiber Technology™ for superior performance, durability.

14.06.2023

The Sound of Premium Materials

Freudenberg Sealing Technologies’ speaker surrounds use Dispersed Fiber Technology™ for superior performance, durability.

25.05.2023

European Chemicals Agency PFAS Restriction Proposal

Impact on Freudenberg Sealing Technologies

illustration of rotor and stator of an e-motor and of the four main characteristics of the new TCEI material

04.04.2022

Expanding Material Portfolio for E-Motors

Freudenberg Sealing Technologies introduces slot liners made from its Thermally Conductive, Electrically Insulating (TCEI) Materials

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