Hi, I just got a new mm180autoset and have no welding exp. I'm going to weld a new radiator core support on a 04 mustang. New support has whats called an ecoating on it. Is that a weld through coating? I bought some weldthrough primer for the frame members where they contact the support, but don't know what I should do with the ecoating on the new support, any advise would be appreciated, thank you