Im reaching out to see if someone can offer some advice on my MIG welder because I’m new to this and I’m having some challenges. I’m trying to spot weld some steel washers together to make a bowl, I’ve placed the washer in a painted cast iron bowl, the earth clamp is attached to the bowl, but while the flux wire comes out it’s not arching? The bowl is on my metal welding table. Does that mean I will need to scrape some of the paint off? Image attached. Any chance of some help?