where can i buy this from. do i have to get it from a hardware store.i want to try to put an end to this water leaking.thanks in advance.
I have always been able to get it at my local NAPA store, but they are also an automotive paint supplier. It comes in a caulk tube that you can load into a caulking gun.
I use 3M super silicone sealant in a caulking cartridge I bought at car quest but ,napa may sell this as well.It comes in black at least mine did for inside the fender weld seems where the undercoating is.The part #08664 is on the cartridge I bought.Check out car quest if one is in ur area.Sets up in a hour cures in 24hrs.Good stuff.
I buy it in a brushable application in a can. Just go to your local auto body supply store.