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I ordered my truck and took delivery the day after it arrived, there were maybe two or three small rust spots underneath and I immediately went through this process to coat the underside and fix what little rust spots there was with paint. Over a year later, it still looks exactly as it does in these pictures, no rust and very shiny, just some water spots. Thought I’d share the process and products. I’m extremely impressed with this product.
https://www.fordraptorforum.com/thr...raptor-today-gen2.59415/page-317#post-1446547
You're going to get rust under any vehicles. It is mostly raw metal underneath on most vehicles car or trucks. If all the manufactures has to paint or coat the underside of all vehicles on the assembly line can you imagine what the added cost would be? Plus, how else you going to justify buying new vehicle every 10 years !!!!!