Wrong. POP leaves the coating machine covered in silver nitrate. Kentmere did their annual deep clean straight after it was coated. Harman clearly felt that exposure to 'free' silver nitrate in that quantity was not an acceptable risk for their cleaning or coating teams. There was never any mention of the EU having any bearing whatsoever. Not wanting to get your employees splattered with large amounts of silver nitrate is, I'd argue, just good business practice. That's not to say you cannot make POP industrially, just that doing it in a reasonably safe manner would probably involve an investment many times the size of its potential market.
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