37-ecat E-Catalog
80-services Services
39-magazine Magazine
36-downloads Downloads
35-contact Contact
47-chevron-right
20-close First-Hand News?

Obtain news and background information about sealing technology, get in touch with innovative products – subscribe to the free e-mail newsletter.

A row of glass bottles lined up in a production environment

EPDM

EPDM – Ethylene Propylene Diene Rubber Monomer

EPDM - Structural Formula

EPDM enjoys high acceptance in the food and pharmaceutical industries. Freudenberg Sealing Technologies has numerous approvals for this material¹. EPDM is indispensable for CIP (clean in place) or SIP (sterilization in place) cleaning processes. However, the fat content of the media may not exceed certain limits. EPDM is a polymerization made of ethylene, propylene and a diene monomer².

It displays high media resistance to brake fluids, acids and lyes, the flame-resistant hydraulic fluids HFC and HFD, hot water and steam. But it is not stable in petroleum-based oils and fats or in gasoline and hydrocarbons. In turn, this material is inexpensive and can be used almost universally – although not with oils.

The special material variations EPDM 291 (black), EPDM 38596 (white) and EPDM 253815 (white) were developed for the process industry. All exhibit excellent resistance in CIP/SIP media. Freudenberg Sealing Technologies’s white EPDM 25813 is superbly suited to the pharmaceutical industry due to its lack of softening agents, which validates an appropriate extractables benchmark. But the fat content of the media must not exceed certain limits. EPDM also pushes against its limits in contact with flavors. In these cases, the universal material Fluoroprene® XP is the preferred solution for the process industry.

¹ For example, FDA 21 CFR 177.2600, 3-A® Sanitary Standards Class II, EG (Reg.) 1935/2004, USP Ch. 87 and Ch. 88 – Class VI, ADI-free
² Dienes are organic compounds that contain two carbon-carbon double bonds, such as dicyclopentadiene

Login with your access data

* mandatory field

Forgot your password? Click here to reset.

Or

Don’t have an account yet? Register now!

You've logged in successfully.

Register and get access to exclusive content

Your benefits

  • Download exclusive documents such as Solution Sheets
  • Live Webinare/On-Demand Recordings on the beverage and food industry
  • Virtual tours of production facilities
  • Resistance tools for selecting the right material

Security Level

* mandatory field

Or

Do you already have an account? Continue to Login.

Thank you. Your subscription was successful.

We have sent you an e-mail. Please click on the included activation link to complete the registration.

We have sent you an email. Please click on the included link to assign a new password.

Have you forgotten your password?

Please enter your email address to reset it.

* mandatory field

The form has been successfully sent.

We have sent you an email. Please click on the included link to assign a new password.

Related Documents

Big city with skyscrapers

Join Us!

Experience Freudenberg Sealing Technologies, its products and service offerings in text and videos, network with colleagues and stakeholders, and make valuable business contacts.

Connect on LinkedIn! 70-external-link