I have a prewar Admiral "camera style" portable with a Tenite case. The Tenite is in fairly good shape, but is warped slightly were the case halves separate. I'm fairly sure that some heat carefully applied followed by restriction of the case will bring the halves back into better alignment. I have a candy thermometer I can use to monitor the temperature. My question is how much heat is too much. Has anyone had success manipulating Tenite?