hi guys,ive not actually done any welding,but ive sorted a problem that affects us all once in a while,-a leaky garage roof!,it was leaking right onto the inner wing/bulkhead area of the car,and it was already in a state,so i didnt want it to get any worse.i used some paint with fibreglass in it,that you can apply in the rain!,if anyone has come across this paint before,do you think it would be good on automotive applications?,the paint wasnt even dry when i got the hose on the roof,and drenched it ,and not a drop came through,and ive not even done the inside yet! the rain just bounces off this stuff,but i aint got a name for it,a joiner at work gave it me.ill try and get a name for it and ask if it can be used on our welding jobs.