I'm having it powdercoated at LSN. Taking it in next Saturday, but I've stuck it in my dad's car already, so not much I can do with it beforehand now. I'm pretty sure it's fine and if not it won't be too expensive to get it re-powdercoated.
I'm going to talk to LSN about some of my other frames too, as I have another 2 or 3 waiting to be powdercoated.