The people at allstar gasket will be able to direct you. They make products especially for vacuum holding. They can tell you exactly what you need and are very cheap. Just make sure when your making a mold or board that you do have grooves in it that are about 3/4 of the gasket thickness deep. You want this so the work piece touches the gasket but crushes enough to bottom out on the vacuum board thereby allowing repeated setup and uniform height. |