nI was able to open your model however I am limited to the Academic version for 19.2 and your mesh has over 80,0000 nodes, so I can't solve it. I might try to remesh the gasket to use fewer nodes and see if I can get the node count < 32,000. The gasket is sweepable. nThe part with the edge that presses on the gasket could be sweepable if you had repaired the body in SpaceClaim to remove the two extra edges.n