Thanks for all the replies, still just as confused as I was to begin with .
Ajelectronics, it is Lechler 29107.
Think next step will be take the wings off again and have a good look to check it is new rust, rather than old rust, as MG David says, it really isn't easy trying to see them when on the car.
If it is free rust caused by abrasion, I wonder if maybe an epoxy mastic next time or just more coats of what I have, then a thick layer of Dinitrol stonechip and then epoxy over the top and maybe a trim of the liner V edge??
Ajelectronics, it is Lechler 29107.
Think next step will be take the wings off again and have a good look to check it is new rust, rather than old rust, as MG David says, it really isn't easy trying to see them when on the car.
If it is free rust caused by abrasion, I wonder if maybe an epoxy mastic next time or just more coats of what I have, then a thick layer of Dinitrol stonechip and then epoxy over the top and maybe a trim of the liner V edge??