Fertan Rust Converter -Turns Rust Into Ferric Tannate To Be Welded Painted 250ml
Fertan is easy to apply and works quickly.
Been using it for years.
Its used in NZ along beach fronts.
I have had great success with it.
Great product easy to use and it works great for solving rust issues on metal surfaces. Easy to paint over after use great on farm machinery recommend AAA