POR15. Really good if you buy the Prep & Ready and spray that on first. Wash it off . Let it dray nd simply paint over.

Scrawf
 
Did mine last weekend. Dinitrol thin and runny on the inside of the chassis, Dinitrol thick and sticky on the outside, and red oxide and black Hammerite on the front bumper and rear crossmember. I shall be keeping an eye on it to see how long it lasts.
 

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