waltermk3 15 Posted July 21, 2018 My MK3 Cortina deserves better that a botch to cover the blister that's recently appeared on the bottom of the offside front wheel arch. I have decided to cut out the rust and weld in a patch. Sounds like I know what I'm doing but my welding is not very good. I have applied Jenolite after wire brushing. After welding, grinding, filling etc I will try and force wax between the two layers of metal from inside the wing. If any of you have been this way before and have any advice it would be appreciated. Thanks. Walter Quote Share this post Link to post Share on other sites