Case Study: PEEK Spring Energized Seal in a High Temperature/High Radiation Application However, one distinct environment presents a particularly challenging set of circumstances for seal design — high radiation. Eclipse’s primary seal material choice for many applications is PTFE and PTFE blends. But with all the wonderful attributes PTFE possesses as a seal material, radiation resistance is not one. In high radiation environments, PTFE’s properties can degrade, ruling it out as asuitable material. The options for effective sealing materials that are also radiation resistant becomes very limited. We are therefore confronted with creating a seal that is expected to perform in every way a typical PTFE seal operates, but out of materials that are not as favorable to sealing. This is where Ec

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