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d. All honeycomb and cured details e. All filler plies f. Any ply with contours or sharp radiuses. 3. When temporary bagging a part you will need the following a. Perforated parting film b. Breather cloth or fiberglass 7781 c. Nylon vacuum bagging film d. One vacuum probe e. One vacuum hose 4. Locate the perforated parting film over the part making sure that it contacts all exposed areas of the part and it extends at least a minimum of two inches beyond the largest ply. 5. Locate the breather cloth or fiberglass 7781 over the perforated parting film and extending at least an inch to a quarter inch away from the edge of the sealant tape. 6. Locate the vacuum probe base on the breather cloth in one corner. 7. Locate the nylon bagging film over part and tool. You will need to add pleats to the vacuum bag in order to get full compaction of the material. 8. Apply the vacuum probe top to the base and apply the vacuum hose. 9. Repeat the process of temporary bagging as necessary. Permanent Vacuum Bagging Rev A1 Pacific Coast Composites | sales@pccomposites.com | 1.888.535.1810 | www.pccomposites.com © 2017 1. 2. 3. 4. 5. 6. 7. 8. 9. Verify that the backing on the final ply is removed. Place the perforated parting film on the part and verify that it extends at least 1⁄4” onto the edge breather. Remove any wrinkles in the parting film. Place the nylon peel ply on the perforated parting film and verify that it extends to the outer edge of the edge breather. Place the solid parting film (non-perforated) on the nylon peel ply and verify that it extends onto the edge breather at least 3⁄4” of an inch. (Optional) – A pressure plate may be placed over the top of the solid parting film for a smooth bag side surface. Place the breather cloth over the solid parting film and verify that it reaches the inside perimeter of the sealant tape. Place probe pads on opposite corners of the tool on top of the breather. (Make sure it is not touching the part.) Remove the probe bases from the probe tops and place the probe bases on each of the probe pads. Center the vacuum bag over the tool. Starting from the top, remove a small section of the backing on the sealant tape from the middle. Do the same for the bottom except this time you will need pull the bagging film tight and apply it to the tape. This process will also need to be done on the left and right side. 5 How-to Manufacture a Composite I-BeamPDF Image | Sandwich Panel
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