I live and work in UK I use what I refer to as standard PCB board (purchased from Rapid Electronics) They have a website catalogue you could check for more details
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With these boards NaOH is the developer The unexposed resist can be removed with alcohol (methylated spirits) but since the heat of a soldering iron strips it as you solder that's not really needed and it does protect the board from oxidation prior to soldering Regards sirkituk
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