I've read numerous pages about examples of these spray-on coatings, like Fluid Film, but I'm not finding what I want. And it seems like most people are spraying newer cars, not my situation. The frame on your 2016 truck hasn't rusted using Fluid Film? Incredible. I don't care for Fluid Film because it really does make a mess if you brush against it working on your car at a later date. I've also read from more than one person, issues about Fluid Film and hoses/rubber contact. I used LSP3 recently, considerably more costly than fluid film, but I didn't like it either. Seemed like it dried before the rusty frame surface could soak it in. I wasn't impressed with its wicking ability but it did get a nice surface on it. Is there something in-between? Something that wicks well and penetrates but has some type of surface you can touch eventually? Not interested in POR, or any of the crap that Eastwood sells. I plan to spray down my 1976 W115 300 diesel benz. It has many nooks and crannies.