If the metal frame surrounds the entire glass like on a pre-51 AD, I would use black RTV. It will seal out the rain and not be too difficult to remove if you ever break the glass. Some would recommend urethane sealant made for modern windshields, but this might be more trouble to remove than black RTV. Maybe an auto-glass expert can chime in to clarify. Or you could get lucky and stumble into the correct thickness of the setting tape and use that. I have done plenty of stumbling and have not had any luck.
Last edited by 52Carl; 12/14/2013 9:01 PM.
