??? about primer before paint

No after a month you cannot prime nor should you paint on epoxy. But there's some epoxy you can do a wet on wet on!! Epoxy's are hard to sand are not meant sand(gummy) So now you have to try and scuff the epoxy the best you can useing 280 trying not to break through wash down with prekleno and tack spray a couple coats of 2 stage primer spray a dusting of tracer coat on and block then you should be good to go. Hope this helps.