Undercoating product to cover rust
As our motorhome ages, we are starting to see little places underneath on the chassis here and there where surface (not serious) rust is appearing. I've been wire-brushing away the rust and then applying a brush-on rust converter product, but I really want to THEN apply a brush-on "thick" black paint of some sort that will help cover and protect the area going forward.
Anyone have a product they would recommend for this? Doesn't have to be pretty and preferably not glossy. Definitely want a brush-on as it is just too hard to control a spray and some of the locations are in tight spaces.
-- Jeffrey and Maren
2011 Winnebago Journey 40U
Ford Escape Hybrid with Blue OX, Air Force One and TST