On 4/12/2020, two pieces of air seal fabric were stuck together with Permatex Ultra Black RTV and clamped overnight to test adhesion. On 4/13 they were checked and peeled apart easily. The rubber was scuffed and the test reset. Checked again today; slightly better adhesion, but very little bonding strength. RTV is a good gasket material, but useless as an adhesive. Rubber cement is probably far superior, but uncertain of temperature tolerance. More research needed. Made templates for nose seal fabric; cut a set from fabric, but fit was inadequate. Remade second set with relief cuts and the material's preset shape going in the correct direction. Much better fit.