SEM Rust shield/POR15/Chassis saver/EastWood Rust encapsulater

I have used KBS, with good results, I am pretty sure its all a close call with using a rust encapsulater. I went with KBS mainly because it comes in colors, I used the blue and it matches well.

All-In-One Chassis Paint Kit - KBS All-In-One Chassis Kit - Frame Painting Kit KBS Coatings