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Are there any heat seal coatings that facilitate or accommodate for the rapid EO cycle?

Last Updated On June 17, 2025

Yes, there are heat seal coatings available that perform very reliably in rapid Ethylene Oxide cycles. Overall porosity of the package is critical for success in rapid EtO cycles as there are more pressure changes. As a result, packages with a very small ratio of breathable material to non breathable material – small headers or patches of breathable material related to the overall size of the package – will see the greatest stress. Keep in mind that in rapid EtO processing there are more pressure changes often accompanied by increased levels of relative humidity. Heat seal coatings need to be able to withstand the increased number of pressure changes and the materials themselves need to be able to withstand the increased levels of relative humidity.  Your packaging supplier can guide you with material recommendations for your specific package (pouch, header bag, vented bag etc) and your specific EtO processing conditions.