Document qkrVxXaKZeJ1zEQ77rRjqrbgK

Application number: E.2.10 (Transport) Application name: Auxiliary material (mold release) for manufacturing aircraft parts An exemption is requested for the following application of PFAS used in the aviation field. Product: Fluororesin film for aviation field Fluororesin used: PTFE (CAS No. 9002-84-0) Product overview: Release film (auxiliary material for molding aircraft parts such as CFRP stringer) Product requirements: Heat resistance, releasability, etc. Alternative: None As a release film, it satisfies many of the required functions such as releasability from a prepreg, and there is no alternative at present because of the quality risks associated with other polymeric materials. Typical properties of PTFE are shown below. 1 Reference material: VALQUA Handbook Technical Section Socio-economic impacts/concerns: In the aviation field, weight reduction has been in progress and the application of CFRP is expanding year by year. In cases where it became impossible to use a fluororesin film used in CFRP processing, socio-economic impacts on the aviation field would be significant. Based on the above, we propose a permanent exemption. 2