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Darryl Keil
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Dear Steve,The inflatable bladder goes inside a form and inflates to provide internal support, you may want to consider getting the "Working in a Vacuum video", it demostrates this item as well as the foam technique you question, and yes, rigid pink or blue building foam will stand up to vacuum pressure. I do like a skin of lets say 1/8" bending ply between the form and my curved panel, rather than right against the foam. Last, the tambour strips would go on top of the canvas so it would be the strips against the bag and the canvas is against the platen.SincerelyDarryl Keil: Greetings,: I just had a great time reading most of the posts from the last few months. I'm still in the process of getting: my vacuum setup and a few things are eluding me...: First. What is this technique of using a bladder? I just dont quite get the basic idea from the posted questions.: Second. Someone suggested using blue foam as a form with a phenolic surfacer to veneer an already curved panel.: I dont understand why it would not be crushed. Is it that strong, and does it just deform slightly making a nice snug : caul? Could you used the foam form to laminate the curved panel itself?...: Third. Daryl said it was good to use the vac press to make tambour...because the bag would conform to the strips. : Did you mean to not use a backer in this case between the bag and the canvas?
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