{"id":724,"date":"2025-03-03T12:35:44","date_gmt":"2025-03-03T04:35:44","guid":{"rendered":"https:\/\/hengoseal.com\/?p=724"},"modified":"2025-05-02T11:52:48","modified_gmt":"2025-05-02T03:52:48","slug":"buna-n-vs-epdm-o-rings","status":"publish","type":"post","link":"https:\/\/hengoseal.com\/ml\/buna-n-vs-epdm-o-rings\/","title":{"rendered":"Buna-N vs. EPDM O-Rings: Which One Should You Choose in 2025\uff1f"},"content":{"rendered":"
Choosing between Buna-N and EPDM O-rings is a critical decision for system performance, durability, and cost-efficiency.<\/p>\n
Buna-N works best for oil-based systems, while EPDM excels in steam, water, and outdoor environments.<\/p>\n
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Keep reading for a complete material comparison with real-world examples, performance charts, and selection guidance.<\/p>\n
Material selection matters. Different sealing environments require different rubber compositions.<\/p>\n
Buna-N fits oil and fuel systems, while EPDM is ideal for heat, weather, and steam exposure.<\/p>\n
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Buna-N (NBR) offers excellent resistance to petroleum products and is widely used in automotive and hydraulic applications. EPDM, on the other hand, resists steam, heat, UV, and ozone\u2014perfect for outdoor, hot water, or drinking water systems. Here's how they compare:<\/p>\n