The Gore high durability filter bag has an all-expanded polytetrafluoroethylene (ePTFE) membrane, an all-ePTFE backing, plus a Rastex scrim, a combination that results in mechanical endurance in even the most aggressive applications and environments. These heavy-duty bags provide the same protection against chemical attack, high humidity, and temperature extremes as the standard all-ePTFE filters, but can sustain much higher physical stress. The high durability filter bags have a Mullen burst strength nearly 50 % higher than standard all-ePTFE filters. This provides better performance under high cleaning pressures and improves flexing endurance so they can survive more frequent cleaning cycles.
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