I ordered 2 gallons of the Ecos Radiator paint. Even though it's expensive,? I thought I was doing the wise thing, as this paint is specifically for radiators. I began with a radiator that already looked pretty good. There was no loose paint & no rust on the radiator before I began. After carefully painting the radiator for 2 hours, I stepped back to admire my work & I saw that some rust spots had appeared freckled across much of the surface! I couldn't believe it! I decided to let it dry & then check in it then: when I checked on it 2 days later, not only was there rent over probably 50% of it, a great deal of it was flaking away! What on Earth! I kept my fingers crossed that another coat would cover the rust, even though the coat I had just completed should've been the last coat. I began the next coat by scraping the flaking paint off which, again, was not something I had had to do in the beginning. Afterward, I spent several hours carefully re-painting the radiator. Almost immediately, when I finished an area, rust would pop out through the coat of paint! This happened all over the radiator again! So now, after many hours of work, I have a radiator in worse shape than it was before & 2 gallons of hugely expensive Ecos Radiator Paint. What a waste! Of money & time! Now I need to order another kind of radiator paint & start all over again. Ugh!