painting lp tank cover?

I looked up fusion paint on the krylon site and it does not mention uv protection, but they have a clear fusion that has a uv block. So maybe I'll use that as a final coat. I wonder if the regular Fusion blocks uv because it's opaque? You'd think they'd mention it. The trailer is 7 years old but hasn't seen much action. Hopefully that is changing, we just had it in corpus for a week. One benefit to painting it will be that I can make it any color I want :0)

Thanks to all for their input. I think I will paint it and if it gets blotchy, I'll deal with it then. I have used fusion on other outdoor plastic and it's great.