Good morning! One of they key future projects that is driving me to learn to weld is the likely restoration/repair of an ex-military trailer for a Land Rover. The bodies of these trailers are sheet steel and they tend to corrode and rot through where the sides meet the floor if they are allowed to fill with water. So, in theory, there will be plenty of cutting out of flat panel sections and welding new metal in. Panel thickness is relatively generous for automotive work (around 2mm for the floor, I understand). Anyway, when I eventually get around to this, I will have to do the work outside and I guess it’s quite likely that it won’t always be possible to finish a section in one go. So - let’s say you’ve got halfway through welding a new section in and then run out of time on a Sunday evening - how would you prepare the remaining joint for welding when you get back to it a week later after it has been rained on a few times (I’m on the coast too....) Aside from being a realistic future scenario I’ll face, it’s something I can easily practice over the winter and have the luxury of being able to destructively test practice pieces... Thanks.