SUBARU Impreza gc8 sill replacement part 4

Not much progress on the last video however In this video I show the prep I’m making to apply rust proof and filler to smooth off.
The rust proof I’m using is Bilt and hamber hydrate 80. It’s primarily a rust neutraliser and preventative. It can be bought from Amazon these days, I don’t know if it can be purchased outside of the UK.