Body help/advice needed

don't use the 8115 for filling seams to keep water out. you can use the 8115 to do the bonding of your panels but all seams need seam sealed. its like a caulking that will stay flexible and paintable. as far as your holes you don't want to just weld the hole in one shot. your better off tack welding around the edges little by little and fill it in cooling as you go. you can put a piece in there and then weld it as well. which ever you feel more comfortable doing. when it comes to seam sealer I use evercoat 6022 or 6023 or I use 3m 08361 its in a sausage tube type container