EPDM – Ethylene Propylene Diene Rubber Monomer
EPDM enjoys high acceptance in the food and pharmaceutical industries. Freudenberg Sealing Technologies has numerous approvals for this material . 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) and EPDM 253815 (white) were developed for the process industry. Both exhibit excellent resistance in CIP/SIP media. Freudenberg Sealing Technologies’s white EPDM 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.
Sealing solutions specially developed for the process industry in accordance with hygienic design and materials with industry-specific approvals.
In food and pharmaceuticals industries production today, everything revolves around the issue of purity.
With its outstanding qualities in critical media, our EPDM materials are the first choice for a wide variety of O-rings, formed parts and diaphragm applications in the food, beverage, pharmaceutical and chemical industries.