Hey! So, if you're thinking about using FDC Rust Converter Ultra, the good news is it's pretty low-maintenance when it comes to prepping the surface.
The manufacturer's product description says there's no need to sand or grind before applying it. Just make sure you clean off any loose rust or debris first.
When you're ready to go, you can apply it with a brush, roller, or even a sprayer. A gallon can cover quite a bit—around 500 square feet if it's smooth—so it's a solid choice if you're tackling a larger area.
Our research shows folks generally find it straightforward to use. It turns rusted spots into a protected, black coating, which is pretty handy for things like vehicle frames or other metal surfaces prone to rust.
One thing to note: if you plan to paint over it, you should definitely let it cure for about two days. Rushing the paint job might let rust sneak back in, which nobody wants.
So give it that 48 hours, then hit it with a good oil-based paint.
Following these steps isn't too tricky, but skipping them can bring back rust faster—especially in not-so-great conditions.
So, just be patient and use some quality paint to make sure it holds up over time.
