Exactly Rick - the right product makes a big difference. Every time we drive, there‘s a certain amount of “sandblasting” happening under our trucks. Add gravel or salt and standard paint products are bound to be compromised.
I've been reading about a few, as this is my first ever new vehicle purchase and I would like to keep it as nice as possible. POR-15 apparently bonds to rusted metal better, instead of a painted surface. Another option seems to be UCP-99 made by magnet paint, which needs a few coats but looks like a good option. Do you know of any other brands to consider?
Believe it or not bed liner paint works nice too. It is an epoxy based paint. My son did it to his 2015 F150 and we also did use naval jelly on the frame and wire brushed it to death before painting. It’s all prep work if the frame has rust on it already. Especially in New England! I looked under his bed last weekend and looks like we just did it still so it is standing up the the punishment test
Awesome, I plan to do this when it warms up. I'll get some naval jelly and hit the trouble spots first, then paint. I'm in Mass too so we share the same issue, my goal is to keep the underside as clean as it is. I hate looking at rust!
