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Lay-Up – 8” x 10” Sandwich Panel (See Figure 2 on page 10.) Material must be thawed to room temperature prior to lay-up. 1. Verify that your tool is clean of debris and dust. 2. Verify Ply 1 and locate it on the center of the tool leaving the backing on to avoid contact with the material. Using your hands or a solid sweep, remove the air bubbles starting from the middle to the outside. (The material may not stay in place due to the mold release. Temporary bagging or a heat gun on low heat may be used to help the material stay in place.) (A TEMPORARY BAG MUST BE APPLIED. SEE TEMPORARY BAG SECTION) 3. Remove the backing on Ply 1 and place Ply 2 on top. Follow the same procedure when applying Ply 1 and remove the air bubbles starting from the middle to the outside with your hands or a solid sweep. 4. Remove the backing on Ply 2 and place Ply 3 on top. a. Continue with the lay-up following the procedures until you have reached the film adhesive. 5. Once you have reached the film adhesive you will need to temporary vacuum bag. Temporary vacuum bagging will add much more value and quality to the part. 6. The plies must be temporary bagged for at least 1 minutes. 7. The honeycomb core and the second layer of film adhesive must also be temporary bagged. 8. Continue with the lay-up temporary bagging those plies and then finish the lay- up temporary bagging the necessary plies. 9. Once you have reached the final ply you may start your permanent vacuum bag. 10. Verify that all the backings have been removed before you start bagging your part. Tips Temporary Bagging 1. Remember to remove the backing from all plies before locating the next ply. 2. Keep track of the backing once they have been removed. This will help in verifying that all the backings have been removed. Rev A1 Pacific Coast Composites | sales@pccomposites.com | 1.888.535.1810 | www.pccomposites.com © 2017 1. 2. Temporary vacuum is necessary when laying up a part with contours, radiuses, and honeycomb core. Always temporary bag the following: a. The first ply laid on the tool b. The last ply laid on the part c. All adhesive plies 4 How-to Manufacture a Composite I-BeamPDF Image | Sandwich Panel
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