Caterpillar equipments have a very corrosion resistant yellow paint.
For those who want to fix up a 4x4 chassis for example (or other) here is the composition :
Manufacturer : Becker industry division Blancomme
Yellow polyurethane paint 80BR21/D
pot 25kg 1E 1952A T51Z9 N°IBM 37429530
hardener DT6/2 Becker
Instructions : 3 doses paint --- 1 hardener
The Blancomme paintings in Pont De Claix, close to Grenoble (F), founded in 1946, is n°1 in France for liquid paint industry and n°3 for powder paint.
Blancomme was bought in 2001 by the Swedish group Becker.