Rust-OlEUm Specialty Yellow Fluorescent Spray, 312 Gm, 1942830

Worst paint.

Update: I spoke with manufacturer and they resolved my issue. Changed from 1 to 5 stars for the professional resolution. I bought this back in march 2026. It sat in my temperature controlled basement the entire time. I just went to us it for first time on June 12, 2026, it literally sprayed for 1.5 seconds and it died. No longer sprays or nothing. How sad. I will reach out to manufacture and see if they will replace and update my review.

First off, white primer is absolutely required for everything that isn’t already white, because this stuff is translucent. It is not completely opaque like most spray paint. So you’re going to need to apply it to white paint or a coat of existing non-fluorescent paint of the same hue. Second, it’s not chemically compatible with everything. I tried to apply it to a white painted surface and it formed cracks. I’m sure the underlying paint was oil based spray paint but I don’t know what brand. The unknown undercoat was also glossy so that could have been the problem. So even if something is white, I d sand it and apply white matte primer of the same brand before applying this fluorescent paint. So basically this looks great when it’s applied to white primer of the same brand, and probably works when applied to paint of the same hue (which might be desirable if you want to darken it a bit for some reason) but it does have more surface compatability problems than I’ve encountered with any other spray paint. Third, the translucency makes it more sensitive to coat thickness and it’s harder to apply such that it looks even . If you want even color then it’s also more trouble to use. You need to apply several very light “dusting” layers 1-2 minutes apart before letting it dry for 20-30 minutes, then repeat that process for a second coat. If that still isn’t dark enough you might need a third coat. Once it dries it will not look as uneven as it did when it was wet, so don’t worry if it doesn’t look perfect when still wet, but some extra effort is needed to try to apply it evenly or it will still end up looking a bit uneven. The fluorescent brightness seems to be better than the Krylon version, but it has the disadvantage of being more trouble to apply. The Krylon version is darker and more saturated but not as “radioactive” looking as this.

Was not too happy with the paint for my predator 212 race motor. Could not get it to cover very well. But does work as advertised. Just not for what I needed it for.

The color is exactly what I wanted, but the spray nozzle is trash and somewhat prone to getting paint on your finger and potentially causing a less than consistent spray pattern. If you were spray painting all day like I was, this nozzle will fatigue your finger pretty quick.