Well, finally used the Dinitrol kit on the Patrol's underside and cavities.
For ease of use, I opted for the standard spray can application.
The kit is sized for the vehicle and includes:
Epoxy Rust Converter (clear) overpaintable.
Underbody wax (black).
Wheel arch and cill anti-stonechip (black).
Cavity spray with long applicator (bronze). Kit price £100
Every element was easy to use, with no mess.
The cavity spray is a lovely job to do. Feed the long tube in to the chassis rails etc. and apply the spray as you slowly withdraw it. The spiral spray pattern on the end ensures the entire inside is covered.
The hot steam pressure washing and wire brushing was a punishment from hell though. Very, very happy with the result.
Shows my new suspension off.:thumb2