Problem of silvering the hologram master

Hi, recently I had some problem to use Peacock chemical to silvering the hologram master which is on a photo-resistor plate. the whole process is very simple. wash-spray sensitize-wash-silver spray-wash-dry.First,the plate I silvered is foggy. it suppose to be very shiny. I doubt about the air first, but even I change to the 99.99% nitrogen. it still foggy. So maybe it is the chemical or the concentration or the time I processed? second, sometimes I got some spot, some are like silver spot some are like the brown spot. Is that from the chemical or some contamination from the gun? Third, sometimes the silver seems ok, but as soon as you start to wash it right after silver spray. the silver at some place start to wrinkle and become like crack then it can be just rinsed off. Thanks for anyone's thought.